Jenn-Air Freezer CO Error: Compressor Overload
What Does Jenn-Air Freezer Error Code CO Mean? Error code CO on a Jenn-Air freezer means the compressor overload protector has tripped. The overload protector is a safety device that cuts power to the compressor when it draws too much current — a sign the motor is being overworked or is failing. Common Causes Dirty […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. An overloaded compressor is a sign of a serious issue. Continuing to use the freezer risks permanent compressor damage.
Can I reset the code?
Yes. The overload protector resets automatically when the compressor cools. Cleaning the coils may resolve the issue if they were severely clogged.
When to stop immediately?
Stop if you notice: Compressor trips overload repeatedly, Burning smell from compressor area.
Symptoms You May Notice
Freezer stops cooling suddenly
The freezer was working normally but abruptly stops producing cold air.
Compressor clicks on and off repeatedly
The compressor attempts to start every few minutes, runs briefly, then shuts off with a click.
Compressor housing is very hot
The compressor unit at the back or bottom of the freezer is extremely hot to the touch.
Possible Causes
Dirty condenser coils
Severely dust-clogged condenser coils force the compressor to work harder, drawing excess current.
DIY PossibleFailed start relay or capacitor
The start circuit components have failed, causing the compressor to draw locked-rotor amps.
Requires ProfessionalCompressor motor degradation
The compressor motor windings are degrading, increasing current draw beyond the overload threshold.
Requires ProfessionalSafe Checks You Can Do
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1
Clean condenser coils
Unplug the freezer and thoroughly clean the condenser coils with a brush or vacuum.
On Jenn-Air column freezers, condenser coils are usually behind the bottom grille or rear panel.
Tools required -
2
Let compressor cool down
Leave the freezer unplugged for at least 30 minutes to let the overload protector reset and the compressor cool.
The overload protector will not reset until the compressor cools significantly.
When to Call a Professional
Contact a qualified technician if:
- Compressor draws more than rated amps
- Start relay is burned or rattles
- Compressor windings show abnormal resistance
Need Professional Help?
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