KeepRite Error Code Amber 5 flashes: Brown-out protection turned off (user setting) (AC)

Updated October 16, 2026 · by Aurora Star Tech Inc.

KeepRite error code Amber 5 flashes on a air conditioner means: Brown-out protection turned off (user setting). It is also called KeepRite diagnostic code Amber 5 flashes.

Low severityAir ConditionerAlso Heat PumpKeepRite *CA/*CH Two-Stage Communicating

Homeowner? What KeepRite code Amber 5 flashes means for you

Usually minor Your air conditioner is reporting: Brown-out protection turned off (user setting). 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.
Keep about 2 feet around the outdoor unit clear of leaves, grass and debris.
If you see ice on the pipes or the indoor coil, turn the system off and run only the fan for a few hours, then call a technician.
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) 657-2977 Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does KeepRite error code Amber 5 flashes mean?

Five flashes, then a pause. Shows that the 230 V brown-out protection has been switched off with the defeat procedure. It records a choice made at the unit and is not a fault. The control ships with brown-out protection active.

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

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.

KeepRite models that use code Amber 5 flashes

*CA624 *CA636 *CA648 *CA660 *CA924 *CA936 *CA948 *CA960

Other KeepRite AC codes

Code	Meaning
81	Low stage thermal lockout
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 6 flashes	Brown-out protection active (user setting)
Amber LED off	Standby - no call (2-wire hookup or indoor unit unpowered)
Amber LED on solid	Standby - no call (communicating)
Brown-out defeat toggle	Turn 230 V brown-out protection off or on
Green COMM LED off	No communication yet
Green COMM LED on	Communication with the system established

All KeepRite Air Conditioner error codes →

KeepRite code Amber 5 flashes: homeowner questions

What does KeepRite code Amber 5 flashes mean?

Brown-out protection turned off (user setting). Five flashes, then a pause. Shows that the 230 V brown-out protection has been switched off with the defeat procedure. It records a choice made at the unit and is not a fault. The control ships with brown-out protection active.

Is it safe to keep using my air conditioner with code Amber 5 flashes?

Usually yes. Code Amber 5 flashes is normally minor, but if it keeps coming back have it checked.

Can I reset KeepRite code Amber 5 flashes myself?

You can try one reset (power off for 30 seconds, then on). If KeepRite code Amber 5 flashes comes back, the cause is still there and a licensed technician should check it.

Who can fix KeepRite code Amber 5 flashes near me?

Aurora Star Tech Inc. repairs KeepRite air conditioners 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

Troubleshooting guides

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Checking OAT and OCT thermistors - KeepRite C4A3/CXA6 KeepRite · Air Conditioner
Turn 230 V brown-out protection off or on KeepRite · Air Conditioner

Source: KeepRite ICP split A-C + HP (R-410A & R-22) Application Guideline and Service Manual 421 08 5400 04, Table 17 p.59-60 and Brown-Out Protection Defeated, p.57. 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.