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Kinghome Error Code H5: IPM module protection (Heat Pump)

Updated · by Aurora Star Tech Inc.

Kinghome error code H5 on a heat pump means: IPM module protection. It is also called Kinghome diagnostic code H5.

Critical severityHeat PumpKinghome KM HT1DI · Kinghome KM HF1DI · Kinghome Ultranixx Eco · Kinghome Ultranixx

Homeowner? What Kinghome code H5 means for you

Stop and call Your heat pump is reporting: IPM module protection. This code is a safety shutdown. Turn the heat pump off and call a licensed technician. Do not keep resetting it. If you smell gas, leave the house and call your gas utility or 911 from outside.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Check both breakers and the outdoor disconnect box beside the outdoor unit; all should be ON.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Kinghome error code H5 mean?

The inverter module reported a fault current and the unit stops.

Applies to: Kinghome KM09HT1DI, KM12HT1DI, KM18HT1DI, KM24HT1DI wall mini-splits; Kinghome KM09HF1DI to KM24HF1DI wall mini-splits (Gree GFH..DA/DB); Kinghome Ultranixx Eco KD24UHO to KD60UHO outdoor units with KD..UHI air handlers; Kinghome Ultranixx cold-climate KU36UHO and KU60UHO outdoor units with KU..UH2I and KD..UHI air handlers

Common causes of Kinghome code H5

  • Compressor wire missing a phase or reversed
  • Overload
  • Failed IPM or low 15 V module supply

A technician checks these and 2 other possible causes on site before replacing any part.

Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Kinghome models that use code H5

Show all 27 models

KD24UHIKD24UHOKD30UHIKD30UHOKD36UHIKD36UHOKD42UHIKD42UHOKD48UHIKD48UHOKD60UHIKD60UHOKM09HF1DIKM09HT1DIKM12HF1DIKM12HT1DIKM18HF1DIKM18HT1DIKM21HF1DIKM24HF1DIKM24HT1DIKU24UH2IKU36UH2IKU36UHOKU48UH2IKU60UH2IKU60UHO

Other Kinghome Heat Pump codes

CodeMeaning
F6Frequency limit for overload / ODU tube sensor fault
F8Frequency reduced - overcurrent
F9Frequency reduced - high discharge temperature
FHFrequency reduced - anti-freeze
H3Compressor overload protection
H4Overload protection (high condensing pressure)
H6Fan motor feedback fault (indoor or outdoor)
H7Compressor out-of-step
HCPFC protection
L3Outdoor DC fan motor fault
L9Power limit protection
LCCompressor start failure

All Kinghome Heat Pump error codes →

Kinghome code H5: homeowner questions

What does Kinghome code H5 mean?

IPM module protection. The inverter module reported a fault current and the unit stops.

Is it safe to keep using my heat pump with code H5?

No. Code H5 is a safety shutdown, so keep the heat pump off until a licensed technician has checked it.

Can I reset Kinghome code H5 myself?

Do not keep resetting it. Repeated resets can hide a safety problem; a licensed technician needs to find the cause.

Who can fix Kinghome code H5 near me?

Aurora Star Tech Inc. repairs Kinghome heat pumps in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: AC Running But Not Cooling: What to Check · Heat Pump Not Heating or Blowing Cold Air

Source: Kinghome KM09-12-18-24HT1DI service manual, sec. 9.1 error code list; Kinghome KM09-24HF1DI service manual, sec. 11.1 error code list; Kinghome Ultranixx Eco KD24-60UHO service manual, sec. 3.3-3.4; Kinghome Ultranixx cold-climate KU36/60UHO service manual GC202306, sec. 3.3-3.4. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency HVAC Service

647-657-2977