Kinghome Error Code Temp display select: Indoor display shows set, room or outdoor temperature (Heat Pump)

Updated October 15, 2026 · by Aurora Star Tech Inc.

Kinghome error code Temp display select on a heat pump means: Indoor display shows set, room or outdoor temperature. It is also called Kinghome diagnostic code Temp display select.

Low severityHeat PumpKinghome KM HEDI · Kinghome KM HT1DI

Homeowner? What Kinghome code Temp display select means for you

Usually minor Your heat pump is reporting: Indoor display shows set, room or outdoor temperature. 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) 657-2977 Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Kinghome error code Temp display select mean?

The remote chooses what the indoor unit's temperature display shows: the set temperature (default after power-up), the indoor room temperature or, on some models, the outdoor temperature. A room or outdoor reading shows for a few seconds and the display then goes back to the set temperature. Outdoor display is not available on every model and needs a dual-8 display.

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 Temp display select

KM09HEDI KM09HT1DI KM12HEDI KM12HT1DI KM18HEDI KM18HT1DI KM24HT1DI

Other Kinghome Heat Pump codes

Code	Meaning
PH	DC bus voltage high
PL	DC bus voltage low
PU	Capacitor charging failure
SE	Energy-saving mode active
Shielded icon	Functions shielded by remote monitor
SW1	Outdoor board debug menu (SW1 held 5 s)
Timer lamp	Timer lamp lit (timer set)
Turbo icon	Turbo mode active
U1	Compressor phase current detection circuit fault
U3	DC bus voltage drop fault
U5	Whole-unit current detection fault
U7	Four-way valve abnormal

All Kinghome Heat Pump error codes →

Kinghome code Temp display select: homeowner questions

What does Kinghome code Temp display select mean?

Indoor display shows set, room or outdoor temperature. The remote chooses what the indoor unit's temperature display shows: the set temperature (default after power-up), the indoor room temperature or, on some models, the outdoor temperature. A room or outdoor reading shows for a few seconds…

Is it safe to keep using my heat pump with code Temp display select?

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

Can I reset Kinghome code Temp display select myself?

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

Who can fix Kinghome code Temp display select 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. 6.1 item 10 TEMP; Kinghome KM09-12-18-24HT1DI service manual, sec. 6.1 function introduction for combination buttons; sec. 6.2 (10). 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.