Disclaimers

  1. This page provides a simple explanation concerning content relating to error codes and their possible causes. Please note that the content may slightly differ depending on models.
  2. 212 HVAC assumes no responsibility for any accidents or troubles caused in the disassembly or repair of equipment performed according to information on this page.

Caution

If molded case circuit breakers or earth leakage circuit breakers have tripped, do not reset the breaker immediately without first checking forany problems with insulation of equipment.

Resetting breakers without a check of insulation may cause damage to equipment.

Carrier air conditioning error codes

Indoor Error Codes:

CODE: E0

RESULT: Indoor unit EEPROM parameter error.

CODE: E1

RESULT:Indoor / outdoor units communication error.

CODE: E3

RESULT: Indoor fan speed has been out of control.

CODE: E4

RESULT: Indoor room temperature sensor T1 open circuit or short circuit.

CODE: E5

RESULT: Evaporator coil temperature sensor T2 open circuit or short circuit.

CODE: EC

RESULT: Refrigerant Leakage Detection.

CODE: F1

RESULT : Outdoor ambient temperature sensor T4 open circuit or short circuit.

CODE: F2

RESULT: Condenser coil temperature sensor T3 open circuit or short circuit.

CODE: F3

RESULT : Compressor discharge temperature sensor T5 open circuit or short circuit.

CODE: F4

RESULT: Outdoor unit EEPROM parameter error.

CODE: F5

RESULT : Outdoor fan speed has been out of control.

CODE: P0

RESULT: IPM malfunction or IGBT over-strong current protection.

CODE:  P1

RESULT: Over voltage or over low voltage protection.

CODE: P2

RESULT: High temperature protection of compressor top diagnosis and solution.

CODE: P4

RESULT: Inverter compressor drive error.

CODE:  P5

RESULT: Mode conflict.

CODE: P6

RESULT: Compressor voltage protection.

Outdoor Error Codes:

CODE: E0

RESULT: Outdoor EEPROM malfunction.

CODE: E2

RESULT: Indoor/outdoor units communication error.

CODE: E3

RESULT: Compressor run winding is open./Compressor no properly wired to control./Faulty compressor wiring.

CODE: E4

RESULT: Open or short circuit of outdoor unit temperature sensor.

CODE: E5

RESULT: Voltage protection.

CODE: E8

RESULT: Outdoor fan speed malfunction.

CODE: F1

RESULT: No A Indoor unit coil outlet temperature sensor or connector of sensor is defective.

CODE: F2

RESULT : No B Indoor unit coil outlet temperature sensor or connector of sensor is defective.

CODE: F3

RESULT: No C Indoor unit coil outlet temperature sensor or connector of sensor is defective.

CODE: F4

RESULT: No D Indoor unit coil outlet temperature sensor or connector of sensor is defective.

CODE: F5

RESULT: No E Indoor unit coil outlet temperature sensor or connector of sensor is defective.

CODE: P1

RESULT : High pressure protection.

CODE: P2

RESULT: Low pressure protection.

CODE: P3

RESULT: Current protection of compressor.

CODE: P4

RESULT: Temperature protection of compressor.

CODE: P5

RESULT: High temperature protection of condenser.

CODE: P6

RESULT: IPM module protection.
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Google Review

"Nick was on time and incredibly polite. He must have done good work - I immediately noticed my vents working better! Kept my living space clean as he worked. Would use 212 HVAC again."

Zak Thompson

Zak Thompson

"My HVAC broke right before family was coming to stay with us during a heatwave. 212 was able to come out and fix the issue super quick and get our AC running again before my family arrived. They are very professional and knowledgeable and I would highly recommend them for HVAC work."

Alex gavlin

Alex gavlin

"For the second time in six months I have used 212 HVAC and both times I was impressed by their courtesy, attention to detail and overall responsiveness. I am planning on using them again and would recommend anyone in the neighborhood to do so as well."

Matteo Gallo

Matteo Gallo

"We contacted 212 HVAC for the installation of new air-conditioners in our new office. The team at 212 HVAC installed the units with minimum fuss and the installation was done perfectly. I would recommend 212 HVAC to everyone."

Ярослав Зайцев

Ярослав Зайцев

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