Brown-out defeat toggle Turn 230 V brown-out protection off or on

What the display is showing

Service step on the two-stage communicating outdoor board: shorting the forced-defrost pins at power-up, with the outdoor air and coil sensors unplugged, flips the brown-out protection setting. The new setting is remembered through power cycles.

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

What to do

1. Power the unit down.
2. Unplug the OAT and OCT sensor connector and short the two FORCED DEFROST pins.
3. Power the unit up and keep the short on for at least 3 seconds.
4. Amber flashes 6 = protection active, 5 = protection off. Repeat once if you land on the wrong state.
5. Power down, plug the sensors back in and remove the short.

Settings for these units

• Outdoor unit clearances · KeepRite C4A3/CXA6 AC

Models that show this code

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

Other codes on the same units

• 82 Thermal lockout (two-stage: high stage)
• 83 Low pressure lockout
• 84 High pressure lockout
• Amber 1 flash Running - cooling / low stage (normal)
• Amber 2 flashes High stage running (normal)
• 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)