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Kinghome Error Code 88: Sleep curve editing (remote) (Heat Pump)

Updated · by Aurora Star Tech Inc.

Kinghome error code 88 on a heat pump means: Sleep curve editing (remote). It is also called Kinghome diagnostic code 88.

Low severityHeat PumpKinghome KM HEDI

Homeowner? What Kinghome code 88 means for you

Usually minor Your heat pump is reporting: Sleep curve editing (remote). 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 88 mean?

While a custom Sleep 3 curve is being edited, the remote shows a flashing 88 in the temperature spot with the saved temperature for the hour being edited, and the timer area shows the hour (1 hour up to 8 hours). After the 8th hour is stored the remote returns to its normal display. If no key is pressed for 10 seconds the edit is abandoned.

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 88

KM09HEDIKM12HEDIKM18HEDI

Other Kinghome Heat Pump codes

CodeMeaning
01Forced operation value: cooling
02Forced operation value: heating
06Debug menu item 06: forced defrost
08Debug menu item 08: refrigerant recovery
8°C8 degC heating mode active
09Debug menu item 09: forced operation
A1Outdoor fan IPM module protection
ACOutdoor fan startup failure
AEOutdoor fan current detection error
AJOutdoor fan out-of-step
C4ODU jumper cap error
C5Jumper cap missing or wrong

All Kinghome Heat Pump error codes →

Kinghome code 88: homeowner questions

What does Kinghome code 88 mean?

Sleep curve editing (remote). While a custom Sleep 3 curve is being edited, the remote shows a flashing 88 in the temperature spot with the saved temperature for the hour being edited, and the timer area shows the hour (1 hour up to 8 hours). After the 8th hour is…

Is it safe to keep using my heat pump with code 88?

Usually yes. Code 88 is normally minor, but if it keeps coming back have it checked.

Can I reset Kinghome code 88 myself?

You can try one reset (power off for 30 seconds, then on). If Kinghome code 88 comes back, the cause is still there and a licensed technician should check it.

Who can fix Kinghome code 88 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. 6.1 item 9 SLEEP. 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