Kinghome Error Code + – + – + -: Forced defrost request (remote key sequence) (Heat Pump)
Kinghome error code + - + - + - on a heat pump means: Forced defrost request (remote key sequence). It is also called Kinghome diagnostic code + - + - + -.
Homeowner? What Kinghome code + - + - + - means for you
Usually minor Your heat pump is reporting: Forced defrost request (remote key sequence). 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 + - + - + - mean?
A service key sequence on the remote that forces the system into a defrost cycle. While it runs the heating lamp shows the defrost pattern (on 10 s, off 0.5 s). The indoor unit leaves the forced-defrost setting when the outdoor unit reports back, and the unit then returns to normal heating. If a fault or protection stop is active the sequence only works after that clears.
Applies to: Kinghome KM09HEDI, KM12HEDI, KM18HEDI wall mini-splits; Kinghome KM09HT1DI, KM12HT1DI, KM18HT1DI, KM24HT1DI wall mini-splits
Kinghome models that use code + - + - + -
KM09HEDIKM09HT1DIKM12HEDIKM12HT1DIKM18HEDIKM18HT1DIKM24HT1DI
Other Kinghome Heat Pump codes
All Kinghome Heat Pump error codes →
Kinghome code + - + - + -: homeowner questions
What does Kinghome code + - + - + - mean?
Forced defrost request (remote key sequence). A service key sequence on the remote that forces the system into a defrost cycle. While it runs the heating lamp shows the defrost pattern (on 10 s, off 0.5 s). The indoor unit leaves the forced-defrost setting when the outdoor unit…
Is it safe to keep using my heat pump with code + - + - + -?
Usually yes. Code + - + - + - is normally minor, but if it keeps coming back have it checked.
Can I reset Kinghome code + - + - + - myself?
You can try one reset (power off for 30 seconds, then on). If Kinghome code + - + - + - comes back, the cause is still there and a licensed technician should check it.
Who can fix Kinghome code + - + - + - 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
- Force a defrost cycle from the remote Kinghome · Heat Pump
- Force a defrost from the outdoor board (debug item 06) Kinghome · Heat Pump
- Force cooling or heating from the outdoor board (debug item 09) Kinghome · Heat Pump
- Open the outdoor board debug menu (SW1 held 5 s) Kinghome · Heat Pump
- Start refrigerant recovery from the outdoor board (debug item 08) Kinghome · Heat Pump
- Start the pilot (test) run from the remote Kinghome · Heat Pump
- Switch between defrosting mode 1 and 2 Kinghome · Heat Pump
Source: Kinghome KM09-12-18HEDI service manual, sec. 7.8 compulsory defrosting function; Kinghome KM09-12-18-24HT1DI service manual, sec. 6.2 (8) compulsory defrosting function. 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.