Durham Region Air Conditioning Repair, Service and Installation
midea air conditioner codes
The tables below contain lists of error codes for several models of the Midea air conditioners. For each error code, there is a short explanation of the type of the malfunction. There are separate tables for the following series of Midea ACs: R series, 9V, 9A, and the Cassette / Ceiling&Floor series. If you're looking for information on AC Outdoor Units, you will also nd it below.
Midea air conditioner error code R series
CODE: E0.
RESULT: EEPROM parameter error.
RESULT: EEPROM parameter error.
CODE: E1.
RESULT: Indoor / outdoor units communication protection.
RESULT: Indoor / outdoor units communication protection.
CODE: E2.
RESULT: Zero-crossing signal error.
RESULT: Zero-crossing signal error.
CODE: E3.
RESULT: Fan speed out of control.
RESULT: Fan speed out of control.
CODE: E5.
RESULT: Open or short circuit of outdoor temperature sensor.
RESULT: Open or short circuit of outdoor temperature sensor.
CODE: E6.
RESULT: Open or short circuit of room or evaporator temperature sensor.
RESULT: Open or short circuit of room or evaporator temperature sensor.
CODE: P0.
RESULT: IGBT over-strong current protection.
RESULT: IGBT over-strong current protection.
CODE: P1.
RESULT: Over voltage or too under voltage protection.
RESULT: Over voltage or too under voltage protection.
CODE: P2.
RESULT: Temperature protection of compressor top.
RESULT: Temperature protection of compressor top.
CODE: P4.
RESULT: Inverter compressor drive error.
RESULT: Inverter compressor drive error.
Midea air conditioner error code 9V series
CODE: E0.
RESULT: EEPROM.
RESULT: EEPROM.
CODE: E1.
RESULT: Indoor / outdoor units communication protection.
RESULT: Indoor / outdoor units communication protection.
CODE: E2.
RESULT: 3 Zero-crossing signal error.
RESULT: 3 Zero-crossing signal error.
CODE: E3.
RESULT: Indoor fan speed out of control.
RESULT: Indoor fan speed out of control.
CODE: E5.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
CODE: E6.
RESULT: Open or short circuit of room or evaporator temperature.
RESULT: Open or short circuit of room or evaporator temperature.
CODE: E7.
RESULT: Outdoor fan speed out of control.
RESULT: Outdoor fan speed out of control.
CODE: P0.
RESULT: IBM malfunction or IGBT over-strong current protection.
RESULT: IBM malfunction or IGBT over-strong current protection.
CODE: P1.
RESULT: Over voltage or too under voltage protection.
RESULT: Over voltage or too under voltage protection.
CODE: P2.
RESULT: Temperature protection of compressor top.
RESULT: Temperature protection of compressor top.
CODE: P4.
RESULT: Compressor position protection.
RESULT: Compressor position protection.
CODE: P5.
RESULT: Inverter module protection.
RESULT: Inverter module protection.
Midea air conditioner error code 9A series
CODE: E0.
RESULT: EEPROM.
RESULT: EEPROM.
CODE: E1.
RESULT: Indoor / outdoor units communication protection.
RESULT: Indoor / outdoor units communication protection.
CODE: E2.
RESULT: Zero-crossing signal error.
RESULT: Zero-crossing signal error.
CODE: E3.
RESULT: Indoor fan speed out of control.
RESULT: Indoor fan speed out of control.
CODE: E5.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
CODE: E6.
RESULT: Open or short circuit of room or evaporator temperature.
RESULT: Open or short circuit of room or evaporator temperature.
CODE: E7.
RESULT: Outdoor fan speed out of control.
RESULT: Outdoor fan speed out of control.
CODE: P0.
RESULT: IBM malfunction or IGBT over-strong current protection.
RESULT: IBM malfunction or IGBT over-strong current protection.
CODE: P1.
RESULT: Over voltage or too under voltage protection.
RESULT: Over voltage or too under voltage protection.
CODE: P2.
RESULT: Temperature protection of compressor top.
RESULT: Temperature protection of compressor top.
CODE: P4.
RESULT: Compressor position protection.
RESULT: Compressor position protection.
CODE: P5.
RESULT: Inverter module protection.
RESULT: Inverter module protection.
Midea AC Outdoor Units error code (except M5OA-36HRDN1-Q model)
CODE: E0.
RESULT: EEPROM error.
RESULT: EEPROM error.
CODE: E1.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E2.
RESULT: No B Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No B Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E3.
RESULT: No C Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No C Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E6.
RESULT: No D Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No D Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E4.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
CODE: E5.
RESULT: Compressor voltage protection.
RESULT: Compressor voltage protection.
CODE: E7.
RESULT: Communication malfunction between outdoor main chip and compressor control chip.
RESULT: Communication malfunction between outdoor main chip and compressor control chip.
CODE: P0.
RESULT: Temperature protection of compressor discharge or compressor top. For M4OC-36HRDN1-Q,it only means compressor discharge temp.protection.
RESULT: Temperature protection of compressor discharge or compressor top. For M4OC-36HRDN1-Q,it only means compressor discharge temp.protection.
CODE: P1.
RESULT: High pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q).
RESULT: High pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q).
CODE: P2.
RESULT: Low pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q).
RESULT: Low pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q).
CODE: P3.
RESULT: Compressor current protection.
RESULT: Compressor current protection.
CODE: P4.
RESULT: Inverter module protection.
RESULT: Inverter module protection.
CODE: P6.
RESULT: Condenser high-temperature protection.
RESULT: Condenser high-temperature protection.
Midea AC Outdoor Units error code For M5OA-36HRDN1-Q model
CODE: E0.
RESULT: EEPROM error.
RESULT: EEPROM error.
CODE: E1.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E2.
RESULT: Communication malfunction between outdoor unit and indoor units.
RESULT: Communication malfunction between outdoor unit and indoor units.
CODE: E3.
RESULT: Communication malfunction between outdoor main chip and compressor control chip.
RESULT: Communication malfunction between outdoor main chip and compressor control chip.
CODE: E4.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
CODE: E5.
RESULT: Compressor voltage protection.
RESULT: Compressor voltage protection.
CODE: E6.
RESULT: PFC module protection.
RESULT: PFC module protection.
CODE: P0.
RESULT: Compressor top. temperature protection.
RESULT: Compressor top. temperature protection.
CODE: P1.
RESULT: High pressure protection.
RESULT: High pressure protection.
CODE: P2.
RESULT: Low pressure protection.
RESULT: Low pressure protection.
CODE: P3.
RESULT: Compressor current protection.
RESULT: Compressor current protection.
CODE: P4.
RESULT: Compressor discharge high-temperature protection.
RESULT: Compressor discharge high-temperature protection.
CODE: P5.
RESULT: Condenser high-temperature protection.
RESULT: Condenser high-temperature protection.
CODE: P6.
RESULT: Inverter module protection.
RESULT: Inverter module protection.
CODE: F1.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective Midea air conditioner error codes.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective Midea air conditioner error codes.
CODE: F2.
RESULT: No B Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No B Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: F3.
RESULT: No C Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No C Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: F4.
RESULT: No D Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No D Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: F5.
RESULT: No E Indoor unit coil outlet temp. sensor or connector of sensor is defective.
RESULT: No E Indoor unit coil outlet temp. sensor or connector of sensor is defective.
Midea M2OC-18HRDN1-M air conditioner error code
CODE: EO.
RESULT: EEPROM parameter error.
RESULT: EEPROM parameter error.
CODE: E1.
RESULT: No 1 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
RESULT: No 1 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
CODE: E2.
RESULT: No 2 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
RESULT: No 2 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
CODE: E3.
RESULT: No 3 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
RESULT: No 3 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
CODE: E6.
RESULT: No 4 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
RESULT: No 4 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
CODE: E4.
RESULT: Open or short circuit of outdoor temperature sensor.
RESULT: Open or short circuit of outdoor temperature sensor.
CODE: E5.
RESULT: Compressor volt protection.
RESULT: Compressor volt protection.
CODE: E7.
RESULT: Communication error between outdoor IC and DSP.
RESULT: Communication error between outdoor IC and DSP.
CODE: PO.
RESULT: Temperature protection of compressor top.
RESULT: Temperature protection of compressor top.
CODE: P1.
RESULT: High pressure protection (just for 36K 1x4 units).
RESULT: High pressure protection (just for 36K 1x4 units).
CODE: P2.
RESULT: Low pressure protection (just for 36K 1x4 units).
RESULT: Low pressure protection (just for 36K 1x4 units).
CODE: P3.
RESULT: Compressor current protection.
RESULT: Compressor current protection.
CODE: P4.
RESULT: Inverter module protection.
RESULT: Inverter module protection.
CODE: P5.
RESULT: Outdoor temp, too low protection.
RESULT: Outdoor temp, too low protection.
CODE: P6.
RESULT: Condenser high-temperature protection.
RESULT: Condenser high-temperature protection.
CODE: P7.
RESULT: Compressor driving protection.
RESULT: Compressor driving protection.
CODE: PF.
RESULT: PFC protection (just for 36K 1x4 units).
RESULT: PFC protection (just for 36K 1x4 units).
Midea MSX-07HRN1-QC2 air conditioner error code
CODE: E1.
RESULT: EEPROM error.
RESULT: EEPROM error.
CODE: E2.
RESULT: Zero crossing detection error.
RESULT: Zero crossing detection error.
CODE: E3.
RESULT: Indoor fan speed has been out of control.
RESULT: Indoor fan speed has been out of control.
CODE: E4.
RESULT: Over current protection occurs 4 times.
RESULT: Over current protection occurs 4 times.
CODE: E5.
RESULT: The T1 sensor is open circuit or short circuit.
RESULT: The T1 sensor is open circuit or short circuit.
CODE: E6.
RESULT: The T2 sensor is open circuit or short circuit.
RESULT: The T2 sensor is open circuit or short circuit.
CODE: E7.
RESULT: The T3 sensor is open circuit or short circuit.
RESULT: The T3 sensor is open circuit or short circuit.
CODE: E9.
RESULT: Indoor / outdoor units communication error.
RESULT: Indoor / outdoor units communication error.
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Aug 17, 2024
I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. Ive used the company in the past for my furnace so I was happy when I recognized Greg at my front door. Hes great and the service is always top notch. Id highly recommend using twintech for honest, superior service in the Durham region. Thanks!
Aug 13, 2024
I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!
Aug 12, 2024
Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!
Jul 23, 2024
Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!
Jul 18, 2024
Just had a new furnace installed by Twintech. I cant express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!
Jul 17, 2024
They've cleaned my furnace a couple of times and mentioned that the hot water tank standards were going to change soon so I decided to change mine out.
There were a few challenges during the process but the installers handled the problems without missing a stride! I now have really hot water again!
Jul 16, 2024
Highly recommend Twintech Heating company, we got honest and detailed information on what was needed to replace and install a new gas furnace. Bob and Greg made us feel comfortable withe process through their thorough explanation and knowledge of the right furnace for our needs. The professionalism and courteous friendly attitude towards the customer is what we liked the most as they treated us like family. So happy with our decision and new furnace we will be looking into get our rental water heater replaced and installed by Twintech team. We feel better having their knowledge on our side and will only trust them with any further maintenance of furnace.
Jul 15, 2024
Customer service and knowledge is priority in this industry, and Twintech has it. I've dealt with their team for maintenance and a furnace replacement. They're accommodating and make great recommendations, and came through at a great price over the big guys in the industry. They'll be my next call when I need service or maintenance.
Jul 14, 2024
I decided that the noises and age of the existing furnace which was old and not very efficient to replace it. Gave Greg a call and Grant and Greg got to work on it. Because of supply issues with the current heating type that would be an easier install Greg convinced me to change the location of the system and it would provide me better service for heat and efficiency. I had skeptical but went ahead anyway putting trust in Greg And Grant. Greg, Grant and Mitch came through and in 2 days had completely relocated my heating and A/C system. I can honestly say Greg was right my old house has been warmer and more evenly heated as it ever was. For anyone reading this rather long winded review can take my word for it, Twin Tech can take care of your needs.
Jul 13, 2024
I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!
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midea air conditioner error codes
See What Our Customers Are Saying:
Aug 17, 2024
I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. Ive used the company in the past for my furnace so I was happy when I recognized Greg at my front door. Hes great and the service is always top notch. Id highly recommend using twintech for honest, superior service in the Durham region. Thanks!
Aug 13, 2024
I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!
Aug 12, 2024
Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!
Jul 23, 2024
Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!
Jul 18, 2024
Just had a new furnace installed by Twintech. I cant express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!
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