Kinghome · Heat pump

Cool lamp Cool lamp lit (cooling mode)

Normal status Kinghome KM HT1DI

What the display is showing

The Cool lamp on the indoor unit lights when cooling mode is selected. Some models do not have this lamp. On the floor-ceiling panel the COOL lamp lights while cooling is active.

Applies to: Kinghome KM09HT1DI, KM12HT1DI, KM18HT1DI, KM24HT1DI wall mini-splits

Models that show this code

4 models in Kinghome KM HT1DI

KM09HT1DIKM12HT1DIKM18HT1DIKM24HT1DI

Other codes on the same units

U3 DC bus voltage drop fault
U5 Whole-unit current detection fault
U7 Four-way valve abnormal
+ - + - + - Forced defrost request (remote key sequence)
Dry lamp Dry lamp lit (dry mode)
EE Memory chip fault
EU Frequency reduced - module too hot
FH Frequency reduced - anti-freeze

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Source: Kinghome KM09-12-18-24HT1DI service manual, sec. 6.1 remote controller operation, mode button; sec. 6.2 floor-ceiling panel lamps. Summarized in our own words; check the original manual for your model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.