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Kinghome Error Code SE: Energy-saving mode active (Heat Pump)

Updated · by Aurora Star Tech Inc.

Kinghome error code SE on a heat pump means: Energy-saving mode active. It is also called Kinghome diagnostic code SE.

Low severityHeat PumpKinghome KM HEDI · Kinghome KM HT1DI

Homeowner? What Kinghome code SE means for you

Usually minor Your heat pump is reporting: Energy-saving mode active. 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 SE mean?

SE appears on the remote controller after the energy-saving function is started in cooling mode (press TEMP and CLOCK together). The unit then adjusts the set temperature itself to a factory energy-saving value, holds the fan on auto and ignores manual set-temperature and fan changes. It cancels Sleep. Not a fault.

Applies to: Kinghome KM09HEDI, KM12HEDI, KM18HEDI wall mini-splits; Kinghome KM09HT1DI, KM12HT1DI, KM18HT1DI, KM24HT1DI 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 SE

KM09HEDIKM09HT1DIKM12HEDIKM12HT1DIKM18HEDIKM18HT1DIKM24HT1DI

Other Kinghome Heat Pump codes

CodeMeaning
P8Power module over-temperature
PAAC current protection
PcDrive current detection error
PHDC bus voltage high
PLDC bus voltage low
PUCapacitor charging failure
Shielded iconFunctions shielded by remote monitor
SW1Outdoor board debug menu (SW1 held 5 s)
Temp display selectIndoor display shows set, room or outdoor temperature
Timer lampTimer lamp lit (timer set)
Turbo iconTurbo mode active
U1Compressor phase current detection circuit fault

All Kinghome Heat Pump error codes →

Kinghome code SE: homeowner questions

What does Kinghome code SE mean?

Energy-saving mode active. SE appears on the remote controller after the energy-saving function is started in cooling mode (press TEMP and CLOCK together). The unit then adjusts the set temperature itself to a factory energy-saving value, holds the fan on auto and…

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

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

Can I reset Kinghome code SE myself?

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

Who can fix Kinghome code SE 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 remote control operations, item 19; Kinghome KM09-12-18-24HT1DI service manual, sec. 6.1 function introduction for combination buttons. 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