Kinghome Error Code SW1: Outdoor board debug menu (SW1 held 5 s) (Heat Pump)
Kinghome error code SW1 on a heat pump means: Outdoor board debug menu (SW1 held 5 s). It is also called Kinghome diagnostic code SW1.
Homeowner? What Kinghome code SW1 means for you
Usually minor Your heat pump is reporting: Outdoor board debug menu (SW1 held 5 s). 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 SW1 mean?
On the KU cold-climate outdoor unit, holding SW1 for about 5 seconds opens a first-level debug menu and the outdoor board display starts flashing. Short presses of SW1 step through the menu items. The manual describes item 06 (forced defrost), 08 (refrigerant recovery) and 09 (forced operation). With no key press for 10 seconds the menu closes.
Applies to: Kinghome Ultranixx cold-climate KU36UHO and KU60UHO outdoor units with KU..UH2I and KD..UHI air handlers
Kinghome models that use code SW1
KU24UH2IKU36UH2IKU36UHOKU48UH2IKU60UH2IKU60UHO
Other Kinghome Heat Pump codes
All Kinghome Heat Pump error codes →
Kinghome code SW1: homeowner questions
What does Kinghome code SW1 mean?
Outdoor board debug menu (SW1 held 5 s). On the KU cold-climate outdoor unit, holding SW1 for about 5 seconds opens a first-level debug menu and the outdoor board display starts flashing. Short presses of SW1 step through the menu items. The manual describes item 06 (forced…
Is it safe to keep using my heat pump with code SW1?
Usually yes. Code SW1 is normally minor, but if it keeps coming back have it checked.
Can I reset Kinghome code SW1 myself?
You can try one reset (power off for 30 seconds, then on). If Kinghome code SW1 comes back, the cause is still there and a licensed technician should check it.
Who can fix Kinghome code SW1 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 Ultranixx cold-climate KU36/60UHO service manual GC202306, sec. 2.3.5 to 2.3.7. 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.