Kinghome Heat Pump: Force cooling or heating from the outdoor board (debug item 09)
Force cooling or heating from the outdoor board (debug item 09) on a Kinghome heat pump: Item 09 forces the system to run regardless of the thermostat: 01 forced cooling, 02 forced heating, OF stops it.
Applies to: Kinghome Ultranixx cold-climate KU36UHO and KU60UHO outdoor units with KU..UH2I and KD..UHI air handlers
How to fix force cooling or heating from the outdoor board (debug item 09): step by step
- Hold SW1 about 5 s, short-press SW1 until 09 shows.
- SW2 or SW3 chooses 01 (cool), 02 (heat) or OF (off).
- Short-press SW1 to save.
If the unit shows an error code, look it up: Kinghome Heat Pump codes
Models
KU24UH2IKU36UH2IKU36UHOKU48UH2IKU60UH2IKU60UHO
Source: Kinghome Ultranixx cold-climate KU36/60UHO service manual GC202306, sec. 2.3.7 forced operation control. 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.