Take no action. Cassoulet (French Stew Made With Duck and Sausage), Roast pork belly, fondant potatoes & pickled onions, CHILLED MOUSSE OF PIKE WITH A TRUFFLE AND LOBSTER SALAD, Mom's Catfish in Claypot Recipe | Epicurious.com, Grilled Salmon With Cucumber Yogurt Salad, Sauteed Chicken In Mustard And Herb Sauce. Home; Company. a2 error code ptac Shut unitdown for 5 minutes, then try again 2 times, if failsthe 3rd time, then shut down unit, Code Translation:I.D coil temperature <30 Deg F for 2 consecutive minutes, Action Taken by Unit:Alternate flash set point and error code. [+ Helpful Tips], Is aircon water good for plants (YES AND WHY). Maintenance ICON: On. Step 2. Alternately flash set point and error code. (Each error code is listed once). As high pressure,comp off over 10 times in 1 hour. Maintenance ICON: Flash. You will get the answer in our latest friedrich air conditioner review. For example: once power is restored to the unit, there is a two second delay before the fan comes on and approximately three minutes delay before the compressor is activated providing that the mode was set for cooling and the set point temperature has not been met in the room. Do not process switch input. There is a source of conducting heat in the room (burner, lamp, etc.),. Maintenance ICON: Flash. F9. a2 error code ptac - sanittia.com During heating operation, the complete unit will stop operation. What does P1 mean on Midea air conditioner? To do this, you simply need to turn the Frigidaire air conditioner off, wait a few seconds, and then turn it back on again. E1 High Pressure Protection. Replace probe. Maintenance ICON: Log Only. All loads operate normally, while operation frequency for compressor is decreased. Exiting Error Code Mode: press the Timer On/Offbutton. Provide repairment. Friedrich air conditioners are designed to compensate for some fluctuation in voltage and amperage as the unit operates. An A2 error code on Frigidaire room air conditioner models like the FGRC1044T1, indicates that there is an issue with the remote controller or the control board of your AC. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'arlingtonairconditioningheating_com-mobile-leaderboard-2','ezslot_12',142,'0','0'])};__ez_fad_position('div-gpt-ad-arlingtonairconditioningheating_com-mobile-leaderboard-2-0');After the complete unit is de-energized for 20 mins, check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If not, contact manufacturer for replacing the PCB. Unit uses electric heat to satisfy heating demand. This creates a problem with both conditioning and freshness. Wordfence is a security plugin installed on over 4 million WordPress sites. This is the sign of overload protection for compressor. If you are a WordPress user with administrative privileges on this site, please enter your email address in the box below and click "Send". Does anyone know what the A2 error code means on Friedrich PTAC units? There might be a broken or short circuit on brass temperature sensor (only applicable for cooI/heat unit). Step 1. a2 error code ptac - sure-reserve.com This error signifies that your air conditioner has gotten too cold and may begin to freeze if it continues to operate in this way. Take no action. Remove any obstacles. Continue to monitor. Unit must be a Heat Pump. No movement. I have noticed water dripping outside of my room air conditioner, is this normal? If resetting your Frigidaire air conditioner clears the error code, you can continue to use your air conditioner as normal without having to investigate or inspect further. Second, it means that the wireless thermostat is no longer sending signals to the unit control. If it is normal, there is malfunction for the circuit, please replace the control panel (AP1). Press the main switch. Already own this appliance? Decrease frequency due to overcurrent. } Replace probe. The A2 error can also sometimes be triggered by signal interference from other appliances, so if you cannot find any evidence of a short circuit or a loose wire, you can try to do a quick reset of the system, to see if this clears the error up. However, since these error codes are manufacturer-specific, it means that Frigidaire error codes may differ from the codes used by other air conditioner brands and they may even vary from one model to the next within the Frigidaire brand of air conditioners. However, compressor must stil wait a lockout time of 180 to 240 seconds. Required fields are marked *. a2 error code ptac - ammcap.com In normal state, the resistance for this terminal should be less than 1obm. Friedrich is one of the air conditioner manufacturers that have been focused on creating PTAC systems, which are quite energy-efficient to operate. PTAC systems can be very beneficial in terms of greater temperature control and greater savings on your electricity bill, but they are not perfect. Some of the reasons why your Frigidaire air conditioner may be displaying an A2 error code include: Air conditioners have many internal sensors and temperature sensors that monitor the functioning of the machine and that warn you if there is something wrong with one of the units components. This is the sign of malfunction of complete units current detection. During cooling and drying operation, indoor unit operates while other loads will stop. str = $(this).attr('id'); The code "C2" means that the air inside the room is being recirculated through the unit. Wiring terminal 4V is loosened or broken. Join the Frigidaire Family and unlock benefits with YOU in mind. If the radiating environment of indoor and outdoor unit is well. Check that the plug has been wired correctly. Display Error code and flash. Poor air-return in indoor unit or fan speed is too low. I have a friedrich quietmaster (22v) unit, about 10. Discharge Air > (greater than) 185 F Shutdown heat pump and electric heater. Maintenance ICON: Flash. The fan will not be affected. ),. In this video I will SHOW YOU how to solve maximum errors #Gree#Air_ConditionerHow to fix e2 error in Gree ac, Gree e2 error,E2 error troubleshooting gree ac,E2 error code for ac,TOOLS FOR AIR CONDITIONERS [1] Char 2022-03-24 how to enable drm in browser xbox one. Unit Continues to operate. If the indoor and outdoor fan is running normal. The code F1 typically indicates a double failure. Leave unit running. If your friedrich air conditioner is part of a ptac system and it is displaying an a2 error, there is an issue with the. jim ladd wife; pacco alimentare caritas requisiti 2021 roma; target employee newsletter; judging amy cast where are they now; chicken wound healing process. If the connection sequence is correct? Alternately flash set point and error code. Error codes are intended to make it easier for you to find and fix a problem with your air conditioner (AC) before it becomes too much of an inconvenience. trane ptac a2 error codes June 14, 2022 June 14, 2022 There is no jumper cap on the controller. Turn off the appliance remove the plug and contact the service center. 38 Years in Business. Maintenance ICON: Flash. In this case, you can replace the batteries on your remote controller or replace it with a universal controller first. English
Qualified Technical Service required URGENT. Using the list of Friedrich air error codes below, try to resolve the issue by yourself first. How does the power cord work on my air conditioner? C5:Malfunction of connector jumper: Check if the . Decrease frequency due to high air discharge. Override sensor. Temperature Beyond Operating Limits. Continue operation. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'arlingtonairconditioningheating_com-leader-4','ezslot_10',139,'0','0'])};__ez_fad_position('div-gpt-ad-arlingtonairconditioningheating_com-leader-4-0');The heating indicator will off 3 seconds and blink 6 times. The Complete Guide to Amana PTAC Error Codes The LED for the TIMER On/Off will flash 1 bps (beats per second) while Error CodeMode is active. a2 error code ptac ChungHop A/C Codes Settings The setting is very simple and easy. The cool indicator will off 3 seconds and blink 6 times. If this does not work, you need to contact a professional to inspect your control board. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'arlingtonairconditioningheating_com-portrait-1','ezslot_18',156,'0','0'])};__ez_fad_position('div-gpt-ad-arlingtonairconditioningheating_com-portrait-1-0');The heating indicator will off 3 seconds and blink 21 times. coil Temperature > 175 DegF for 2 consecutive minutes. Supply voltage is too low and load is too high. Reconditioned (Used) . Programmable sleep timer function for automatic shutoff. The compressor will operate while indoor fan will stop operation. Why does my Midea air conditioner turn off by itself? Manufacturers . Once voltage rises to normal level system power is restored. About 2 to 3 years old. The cool indicator will off 3 seconds and blink 4 times. Alternately flash set point and error code. Set error code 14 ON. If coil resistance of compressor is normal? url = 'https://www.tfrecipes.com' + '/details/' + str + '/'; Then plugged back in. How do I store my room air conditioner for winter storage? how often does the passaic river flood. Press the Temp/Hour button tosee the reverse order of the error codes. During heating operation, the complete unit stops, During cooling an drying operation, compressor and outdoor fan stop while indoor fan operates. The operation indicator will off 3 seconds and blink 11 times. Provide repairment. The cool indicator will off 3 seconds and blink 13 times. Outdoor discharge temperature sensor is open/short circuited. The heating indicator will off 3 seconds and blink 17 times. Display Error code and flash. Severity 3 keeps unit running. a2 error code ptac - digitalidentityorganization.com If the A2 error code was not caused by an interruption of the power to the heater component of your PTAC system, and it was caused by some other issue, like interference from another appliance, you can clear this error code by simply resetting the unit. This is the sign of high temperature resistant protection. Continue fan operation while the compressor is locked out until the indoor coil thermistor reaches 45 F, then energize the compressor. Wiring terminal OVC-COMP is loosened. Logged Only. Unit will use electric heat to satisfy heating demands until temp > 45F. This is the sign of malfunction of voltage dropping for DC bus-bar. This is the sign of failure start-up. These units are growing in popularity, because they offer so much in terms of temperature control in your space. Diagnosis is based on the data of numerous sensors of the air conditioner. An air conditioner can be quite a convenient appliance during the hotter, summer months, but when your air conditioner suddenly stops working, this can result in a lot of frustration and confusion. Free expert DIY tips, support, troubleshooting help & repair advice for all Friedrich Heating and Cooling products. The airconditioner works for short period only. The complete unit will stop operation. /
Have until plugged for a while. Measure the voltage of position L and N on wiring board (XT), if the voltage is higher than 265VAC, turn on the unit after the supply voltage is increased to the normal range. when it says A2 it just blows air (not cold), 1991 upper deck football promo cards. Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Outdoor temperature sensor hasnt been connected well or is damaged. This is the sign of decrease frequency due to overcurrent. During cooling and drying operation, except indoor fan operates, all loads stop operation. During cooling and drying operation, compressor wil stop after operating for about 3 mins while indoor fan will operate. Featured, 2021-08-16 But now when I turn it on either 1) It says A2 right away 2) It will start cooling and show the temp but then switch to A2 or 3) It will start cooling, show A2, and then switch back to start cooling again. F6. Defrosting will occur in heating mode. Run High Speed and Electric heat until room temp reaches 46F. Is connection wire loosened or pull out? Indoor air sensor open or short. Severity 2 error opens all relays. Malfunction of electric expansion valve (EKV). May be a normal condition if if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'arlingtonairconditioningheating_com-large-leaderboard-2','ezslot_2',132,'0','0'])};__ez_fad_position('div-gpt-ad-arlingtonairconditioningheating_com-large-leaderboard-2-0');System noticed abnormal temperature range. High discharge temperature protection of compressor, Limit/decrease frequency due to high temperature of module, Indoor ambient temperature sensor is open/short circuite, Indoor evaporator temperature sensor is open/short circuited, Outdoor ambient temperature sensor is open/short circuited, Outdoor condenser temperature sensor is open/short circuited, Outdoor discharge temperature sensor is open/short circuited, Limit/ decrease frequency due to overload, Decrease frequency due to high air discharge, Limit/ decrease frequency due to antifreezing, Compressor maximum frequence in test state, Compressor intermediate frequence in test stat, Overcurrent protection of phase current for compressor, Malfunction of module temperature sensor circuit, Decrease frequency due to high temperature resistant during heating operation, Internal motor (fan motor) do not operate, Indoor unit and outdoor unit doesnt match, Malfunction of phase current detection circuit for compressor, Malfunction of voltage dropping for DC bus-bar, Malfunction of complete units current detection, System is not serviced or inspected regularly (semiannually or annually), Can result in premature component failures, poor performance and increased operating costs, Air filters are not cleaned regularly andbecome blocked with particles, May result in poor cooling, icing and water problems as well ascomponent failures and increased operating costs, Condenser coil not maintainedproperly (blocked with particles), May result in poor cooling, component failures and increased costs, Evaporator coil not maintained properly(blocked with particles), May result in poor cooling, icing and water problems, and increasedoperating costs, Components that show signs of fatiguenot replaced, May result in multiple service calls, poor performance andincreased operating costs, Condensate drains and drain lines notmaintained. $(obj).find('span').text(response); 2020-11-24 Symptom Possible Causes; Motor rocks slightly when starting: This is normal start-up for variable speed motor. When friedrichair conditioner status is abnormal, temperature indicator on indoor unit will blink to display corresponding error code. Maintenance ICON: Flash. How do I set Sabbath mode on my refrigerator? 2020-02-23 The A 2 code will basically let you do nothing. Friedrich air conditioner troubleshooting, Excessive outdoor pressure (permanent stop), Communication error (inverter-multicontroller), Communication error (indoor unit remote controller), Communication error (indoor unit outdoor unit), Indoor heat exchanger temperature sensor open, Indoor heat exchanger temperature sensor short- circuited, Outdoor heat exchanger temperature sensor. EEPROM reading date error. Please check your email to verify your account and to see your registered products. Welcome to a better way to protect your appliances with an Extended Service Agreement. Akira air conditioner error codes + troubleshooting, Airfel air conditioner error codes, light blinking and troubleshooting, 32 Aerotek aircon error codes + troubleshooting, How to choose the best location for aircon, How to install portable aircon without window, How to keep cottonwood out of the air conditioner, Kapsul air conditioner review [WITH FACTS], Can AC be Stored Outside in the Winter? Air conditioner manufacturers have tried to lessen the confusion and frustration that customers face when their air conditioners do not work the way that they are supposed to. Use the Temp button to adjust the code in my case York Air conditioner = 774. My Account; Login; Cart 0; Toll-Free 866-259-8500. If the work load of the unit is heavy? Error Code Mode is used to display all error codesstored since reset. There might be a broken or short circuit on ambient temperature sensor. This is the sign of malfunction protection of jumper cap. Turn OFF compressor. e.preventDefault(); I have a friedrich quietmaster (22v) unit, about 10. During cooling and drying operation, indoor unit operates while other loads will stop. Alternate flash set point and error code, Communication error (Indoor unit Outdoor unit), Communication error (inverter mufti controller). Electrical short on both temperature sensor and PCB. Friedrich Ptac A2 Code - Funart Third occurance in 1 hour locks unit out. Shut down unit. Friedrich air conditioner error code A2 - bestairconph.com Error code A2 - EVGA Forums Limit/ decrease frequency due to overload. Maintenance ICON: Solid On. Indoor Temperature Sensor is Open or Shorted Set temp to 75F in COOLING or 68F in HEATING. To fix this, check the seal around your unit and be sure it creates a solid barrier between inside and outside air. Special Test 2 Severity Level 2. If test fails 3 times, the severity is increased and the unit operation is locked out. The manual doesn't show this code, Google isn't coming up with anything, Friedrich hasn't responded to my email over a week ago. The heating indicator will off 3 seconds and blink 10 times. Front Panel Button Stuck For More Than 20 Seconds Continue to monitor for OPEN (Unstuck) switch. If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1). Third occurance in 1 hour locks unit out. However, even though these PTAC units can be so beneficial when they are functioning correctly, when your Friedrich air conditioner is not working quite like it should, it can also be quite inconvenient and frustrating. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'arlingtonairconditioningheating_com-narrow-sky-2','ezslot_14',140,'0','0'])};__ez_fad_position('div-gpt-ad-arlingtonairconditioningheating_com-narrow-sky-2-0');The heating indicator will off 3 seconds and blink 15 times. 2020-11-19 Troubleshooting There is no flow chart for e2. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'arlingtonairconditioningheating_com-leader-3','ezslot_9',153,'0','0'])};__ez_fad_position('div-gpt-ad-arlingtonairconditioningheating_com-leader-3-0');Possible reason: The cool indicator will off 3 seconds and blink 5 times. This code list will help you program your old or new universal remote to operate your air conditioner. Resume operation for 3 min. This PTAC system not only helps you maintain your ideal temperature within a space, but it also gives you greater control over how much you spend on electricity every month. The cool indicator will off 3 seconds and blink 8 times. 2022-04-03 Join Date Sep 2011 Location Las Vegas Posts 33 Post Likes Likes (Given) 0 Likes (Received) 0 Dislikes (Given) 0 Dislikes (Received) 0, General Blog. 8 E8 Outdoor Coil switch open (only if heat pump configured). Continues to monitor. Special Test 3 Severity Level 3 Error is Logged Only. Generated by Wordfence at Sun, 5 Mar 2023 0:39:41 GMT.Your computer's time: document.write(new Date().toUTCString());. Motor rocks, but won't start. url = '/react.php?id='+id+'&value='+value; Keep unitrunning, Code Translation:If unit cycles (Heat or Cooldemand)< 3 times per hour, Code Translation:Room Freeze Protection triggered, Possible Cause:Room temperature fell below 40F. Circuit PG motor ( indoor fan ) has circuit malfunction by zero cross detection. The heating indicator will off 3 seconds and blink 11 times. When the endof the stored error codes is reached the temperature SetPoint will appear. Unit operates based on standard input mapping. Keep unit running. EVGA X99 FTWK / i7 6850K 4.5ghz / RTX 3080Ti FTW Ultra / 32GB Corsair LPX 3200mhz / Samsung 850Pro 256GB / Corsair AX1200 / Window 10 Pro Fire Strike 24,163 Fire Strike Extreme 14,452 Fire Strike Ultra 7,711 Time Spy 10,357 The Friedrich Smart Center continuously monitors thePTACunitoperation and will store service codes if certain conditions are witnessed. 2times DC Link Volt is below 140Vdc Off, L_P/H_P Switch Low/High Press Switch Open Off, Low Voltage/Over Voltage Abnormal AC Volt Input Off, DC Compressor Position Error Compressor Starting Fall Error Off, PSC/PFC Fault Error Inverter PCB input current is over100A(peak) for 2us Off, COMP Over Current Over Inverter Compressor Current Off, CT Sensor (Open / Short) CT Circuit Malfunction Off, Capacity Over 5times Over combination Off, Signal Error(DSP Board <-> Main Board) Communication Poorly Off, Signal Error (Indoor <-> Outdoor) Communication Poorly Off, EEPROM Check Sum Error Check Sum Mismatching Off, Cond. bvseo-msg: Execution timed out, exceeded 500ms. Input Voltage Out of Specification (103 127 / 187 253) Stop.Open all relays until voltage is back within specs. The cool indicator will off 3 seconds and blink 15 times. The heating indicator will off 3 seconds and blink 3 times. AMBIENT (INDOOR) AIR PROBE OPEN OR SHORT: Control will assume ambient temperature is 90 degrees F when in Cool mode and 60 degrees F when in Heat mode. The best way to air condition a two-story house, How to use a Daikin air conditioner remote, Comparing Cooper & Hunter and Mitsubishi mini-split air conditioners. F5. Clearing Error Codes: Error codes are clearedfrom the memory by exiting from Error Code Mode. +92(213) 889-0351. what does 4 fingers mean police, most orders ship in: save 15% now on orders over $1,250 with: price match : 1 business day: coupon: breaktime22 guarantee*, DAIKIN AIR CONDITIONER AC ERROR CODES REMOVEANDREPLACE COM. Therefore, it is easiest to use a remote control for diagnostics, on which everything is written that you need to know to determine the malfunction. The fan on the condenser is blocked. Friedrich air conditioner error codes - alltroubleshooting.net They have done this by programming the air conditioners to display a specific error code when one of the internal sensors picks up that there is an issue with one of the components in the AC. This ensures that airflow is conditioned entirely through the unit. (HeatPump models only), Action Taken by Unit:Alternate flash set point and error code. soul train cruise london; the district apartments pittsboro nc; Select Page Friedrich ac error code f2 the cool indicator will off 3 seconds and blink twice. Troubleshoot Error Codes | GREE Comfort Troubleshoot Error Codes Error Code Tool Select your system's error code below to receive a list of troubleshooting steps. During heating operation, all loads stop. F8. Set ID coil temp = 40F. Temp. did nicole simpson's neighbor disappear. hobart high school football coach. The cool indicator will off 3 seconds and blink twice.
PG motor ( indoor fan motor ) does not operate. 2023 uremotecodes.com - WordPress Theme by Kadence WP, https://www.betaalbarekunst.nl/situs-judi-slot-gacor-online-gampang-menang/, https://www.betaalbarekunst.nl/kunstnieuws/slot88-gacor-online-gampang-menang/, https://www.circular.gconnect.in/daftar-slot-gacor-online-gampang-menang/, https://www.reisewelten.ch/daftar-situs-judi-slot-online-gampang-menang/, http://hospice26.ru/situs-judi-slot-online-gampang-menang/, http://www.techeasypay.com/slot-gacor-online-gampang-menang/, http://eganacsi.com/slot88-slot-gacor-online-terbaru/, Universal Air Conditioner Remote Control Codes. Automatic voltage adaption. Display error code and flash. About Us; Our Clients; Team; Our Alliances & Partnerships; Consulting, Energy-efficient operation. If your Frigidaire air conditioner is displaying an A2 error code, you should first reset the unit, and then check whether it has frozen or if there is an issue with the units remote controller or control panel. Special Test 4 Severity Level 4 Error is Logged Only. You will then receive an email that helps you regain access. Alternate flash set pointand error code. First, the Indoor Ambient Thermistor (black) is reading outside of the predetermined range (-20 to 200 ). }); 2020-01-29 Gree Ductless Heat Pump fault Codes Gree AC Remote Control Display Gree AC Remote Control Display Gree portable air conditioner fault , 2022-02-07 Gree Air Conditioner Troubleshooting *Problem. This is the sign of EEPROM malfunction. Our technicians are factory trained on all of our products, so they can repair your appliance ASAP. Motor won't start: 1. The heating indicator will off 3 seconds and blink 19 times. when it says A2 it just blows air (not cold) Dry-mode dehumidification. Control ptac units boards amana gree ptac manual. Provide repairment. If it is no use, please replace control panel AP1. If the external unit detects the high pressure switch iscut off sequentially for 3 seconds, then high pressure protection will occur. To do this, you need to unplug the unit for a few minutes, and then plug it back in and switch it on again. Attention is needed. Unfortunately, just like with any other electrical appliance, it can sometimes happen that the system in your Frigidaire air conditioner has gotten confused or overwhelmed and that the error code is being displayed in error. hondashi miso soup recipe; drought juice nutrition facts; bridgestone arena seat view. Continue to monitor. The operation indicator will off 3 seconds and blink 6 times. Customer reply replied 2 years ago. The plug is not connected. If the amperage between the L-line and N-line is more than 2.5 A, the A2 error will also be triggered, and your unit will not operate. SHORT CYCLE SITUATION: Defined as a compressor that starts and stops more frequently than it should (more than 6 times per hour). INDOOR PROBE SHORT: Control assumes ambient temperature is 90 degrees F and unit will operate. First steps when the air conditioner malfunctions, 2021-02-18 Posted on February 18, 2021 by 0 Comments February 18, 2021 by 0 Comments. Frost Protection (for Heat Pump Only Unit- YS10M10) Unit will run active defrost for a minimum of 6 minutes when Heat Pump run time is greater than 60 minutes and outdoor coil temp is 26 F or less. At PTACUnits.com, we stock a large selection of Gree PTAC parts and accessories so you can keep your PTAC units running at full capacity. June 3, 2022 how much do top chef contestants get paid how much do top chef contestants get paid FROST PROBE SHORT: Normal operation is allowed. This is the sign of malfunction of phase current detection circuit for compressor. WOULD THINK THERE WOULD BE A RESET BUTTON. The aircon status now is all loads operate normally, while operation frequency for compressor is decreased. HVAC Technician: Tamar D Got it. Malfunction. Save my name, email, and website in this browser for the next time I comment. Unit Cycles < (less than) 3 Times per Hour. Operation of remote controller or control panel is available but the unit wont act. Continue operation. This means that although an error code, like an A2 error code, seems like it would have a clear cause and solution, you may still need to try various troubleshooting options to get the error cleared from your air conditioner and to get the air conditioner working normally again. https://www.tradesmandrcool.comTRANE Diagnostic Fault Codes Find the best www.trane.com deals and sales Digits 1, 2Packaged Terminal Air Conditioner Digit 3Product Type E = Air Conditioner with auxiliary heat H= Heat Pump Digit 4Development Sequence E = Fifth , The fault code is deduced from the number of times the green LED flashes, blocking unit operation.