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Kinghome Error Code H1: Defrosting mode 1 selected (remote display) (Heat Pump)

Updated · by Aurora Star Tech Inc.

Kinghome error code H1 on a heat pump means: Defrosting mode 1 selected (remote display). It is also called Kinghome diagnostic code H1.

Low severityHeat PumpKinghome KM HEDI

Homeowner? What Kinghome code H1 means for you

Usually minor Your heat pump is reporting: Defrosting mode 1 selected (remote display). This code is usually informational or minor. The safe checks below often clear it; call us if it keeps showing up.

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.
  • Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
  • In winter, keep snow and ice off and away from the outdoor unit. A short defrost cycle with steam is normal.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Kinghome error code H1 mean?

H1 on the remote while the unit is off marks defrosting mode 1 as the one the unit will use after it is switched on. The indoor unit passes that choice to the outdoor unit when it receives the next remote command. The manual's wording for the H1 case is unclear, so check the remote behaviour before relying on it. Not a fault.

Applies to: Kinghome KM09HEDI, KM12HEDI, KM18HEDI wall mini-splits

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 H1

KM09HEDIKM12HEDIKM18HEDI

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
Filter clean iconReminder to clean the air filter
Function lock iconWired controller keys locked
H2Defrosting mode 2 selected (remote display)
H3Compressor overload protection
H4Overload protection (high condensing pressure)
H5IPM module protection
H6Fan motor feedback fault (indoor or outdoor)
H7Compressor out-of-step

All Kinghome Heat Pump error codes →

Kinghome code H1: homeowner questions

What does Kinghome code H1 mean?

Defrosting mode 1 selected (remote display). H1 on the remote while the unit is off marks defrosting mode 1 as the one the unit will use after it is switched on. The indoor unit passes that choice to the outdoor unit when it receives the next remote command. The manual's wording for…

Is it safe to keep using my heat pump with code H1?

Usually yes. Code H1 is normally minor, but if it keeps coming back have it checked.

Can I reset Kinghome code H1 myself?

You can try one reset (power off for 30 seconds, then on). If Kinghome code H1 comes back, the cause is still there and a licensed technician should check it.

Who can fix Kinghome code H1 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

Troubleshooting guides

Source: Kinghome KM09-12-18HEDI service manual, sec. 7.7 switchover function for defrosting mode. 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