Settings shortcuts: Air Conditioner tips
Short, practical technician tips on settings shortcuts for air conditioner. Check each one against the manual for your exact model before acting.
Turn 230 V brown-out protection off or on
KeepRite · *CA/*CH two-stage communicating outdoor boards
Shorting the forced-defrost pins at power-up with the outdoor sensors unplugged flips the brown-out protection setting; it is remembered through power cycles.
- Power the unit down
- Unplug the OAT and OCT sensor connector and short the two FORCED DEFROST pins
- Power up and keep the short on for at least 3 seconds
- Amber flashes 6 = protection active, 5 = protection off; repeat once if you land on the wrong state
- Power down, plug the sensors back in and remove the short
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.
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.