Fan delay defeat toggle Switch the post-defrost outdoor fan delay off or on

What the display is showing

Normally the outdoor fan stays off 20 seconds after defrost ends so the heat from the coil is picked up and less steam cloud forms. Shorting the forced-defrost pins for more than 15 seconds while the board is idle (amber LED solid) toggles this delay. The setting is kept through power loss.

Applies to: *CA/*CH two-stage communicating heat pump boards

What to do

1. With the unit in standby (amber LED on solid), short the FORCED DEFROST pins for more than 15 seconds.
2. The LED starts flashing when the toggle has taken place: 4 flashes = delay defeated, 3 flashes = 20 s delay active.
3. Remove the short. The code stays up until the short is removed and for about 5 seconds after.
4. If you got the wrong state, repeat the toggle.

Models that show this code

8 models in KeepRite *CA/*CH Two-Stage Communicating

Other codes on the same units

• Amber 2 flashes High stage running (normal)
• Amber 3 flashes Outdoor fan delay after defrost is on (20 s)
• Amber 4 flashes Outdoor fan delay after defrost is defeated
• Amber 5 flashes Brown-out protection turned off (user setting)
• Amber 6 flashes Brown-out protection active (user setting)
• Amber LED on solid Standby - no call (communicating)
• Brown-out defeat toggle Turn 230 V brown-out protection off or on
• Forced defrost pins Force a defrost cycle / skip the 5-minute delay