Braemar error codes

Air Conditioning FAQs

What are error codes?

Error codes identify when something may need to be repaired or isn’t functioning properly. Each error code has a meaning to help you understand the problem and what needs to be done to fix it.

Below are the error codes for Braemar and the matching explanation.

How to manage an error code?

  1. Reset your system

Doing so will delete your air conditioner’s on board memory. We recommend trying this simple trouble-shooting solution before spending money on a service call.

Do so by separating your AC system from its power supply. Unplug it from a power point, turn off the isolator next to the outdoor unit or shut down your house’s power from the electrical board. Then leave it for 15 – 30 minutes.

  1. Call an expert

Have an expert come out to look into your error. This is safer and will ensure you don’t accidentally cause further damage to your air con unit.

Error Code Table

b5: Indoor unit liquid valve temperature sensor open/short circuited

b7: Indoor unit liquid valve temperature sensor open/short circuited

dn: Communication line misconnected or expansion valve error

En: Frequency restricted/reduced with IPM current protection

EU: Frequency restricted/reduced with IPM temperature protection

E1: Compressor high-pressure protection

E2: Indoor anti-freeze protection

E3: Compressor low-pressure protection

E4: Compressor high discharge temperature protection

E5: Whole unit over-current protection

E6: Communication error

E7: Running mode conflict

E8: Overload protection

E9: Indoor unit full water protection

Fo: Pump-down

FH: Frequency restricted/reduced with anti-freezing protection

F0: System charge shortage or blockage protection

F1: Return air temperature sensor open/short circuited

F2: Evaporator temperature sensor open/short circuited

F3: Outdoor ambient temperature sensor open/short circuited

F4: Outdoor mid-tube temperature sensor open/short circuited

F5: Discharge temperature sensor open/short circuited

F6: Frequency restricted/reduced with overload protection

F8: Frequency restricted/reduced with whole unit current protection

F9: Frequency restricted/reduced with high discharge temperature

Hc: Pfc protection

HE: Compressor demagnetization protection

H1: Forced defrosting

H3: Compressor overheating protection

H5: IPM current protection

H6: Motor stalling

H7: Compressor desynchronising protection

LA: Outdoor fan 1 error protection

Lc: Compressor Startup failure

Ld: Compressor phase loss/reversal protection

LE: Compressor stalling

LF: Over-Speeding

LP: Indoor and outdoor units unmatched

L3: Outdoor fan 1 error protection

L9: Over-power protection

Pd: Sensor connection protection

PE: Temperature drift protection

PF: Drive board temperature sensor error

PH: DC Bus over-voltage protection

PL: DC Bus under-voltage protection

PP: AC input voltage abnormal

PU: Capacitor charging error

P5: Over phase current protection

P6: Drive board communication error

P7: IPM temperature sensor open / short circuited

P8: IPM temperature protection

P9: AC contactor protection

U1: Compressor phase current sensing circuit error

U3: DC bus voltage drop error

U5: Whole unit current sensing circuit error

U7: 4 way valve reversing error

U8: PG motor zero-crossing protection

U9: Defrost or oil return

Demand Response Enabling Device (DRED) Codes

d1: DRED mode 1 (full shut down)

d2: DRED mode 2 (50% power)

d3: DRED mode 3 (75% power)


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