Error code · Dehumidifier

Frigidaire Dehumidifier Code CO: Running in Continuous Mode

Low risk · DIY check OK

Code: CO
Appliance: Dehumidifier
Brand: Frigidaire
Warranty: 30-day workmanship

What CO means

CO on a Frigidaire dehumidifier with a digital display is not an error. When the unit is set to CONTINUOUS mode, the display shows CO in place of the room humidity reading. The dehumidifier simply runs without a target. This applies to the FFAD, FFAP and FGAC families. If you expected to see a humidity percentage, check which mode the unit is in.

Common causes of CO

Continuous mode selected on the control
The humidity setting was changed by accident

✓ One safe check you can try

1. Press the humidity setting control on the panel. 2. Choose a target between 35 and 85 percent. 3. Wait a moment to see the room humidity reading return to the display. 4. If the display still shows CO, unplug the unit for a minute and try again.

! Why to stop there

If the setting will not change from CO, the keypad or control may not be responding and we test it.
A unit stuck in continuous mode can run nonstop and ice up the coil.
We check the controls before suggesting a part.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Dehumidifier codes

F1 or F2Frigidaire Dehumidifier Codes F1 and F2: Sensor Failure with a Dead Reading FilterFrigidaire Dehumidifier Filter Light: Cleaning Reminder at 250 Hours H3 or E5Frigidaire Dehumidifier Codes H3 and E5: Compressor Overload Protection L1 or F5Frigidaire Dehumidifier Codes L1 and F5: The Humidity Sensor Lost Its Reading LCFrigidaire FHDD5034Y1 Dehumidifier Code LC: Control Lock Turned on PUFrigidaire Pump Dehumidifier Code PU: Bucket Not Pumping Out Pump + Bucket Full indicators flashingFrigidaire FFAP5034W1 Dehumidifier Pump and Bucket Full Lights Flashing: Hose Check ECFrigidaire Dehumidifier Code EC: Alert for the Sealed System

COCO questions

Is CO a problem code?

No. It tells you the unit is in continuous mode, so it runs without aiming for a particular humidity. Choose a humidity setting to turn continuous mode off.

How do I get out of continuous mode?

Select a humidity setting between 35 and 85 percent on the control panel. The display should go back to showing room humidity once a target is set.

The unit ran all night on CO. Did it hurt anything?

Usually not. Continuous mode simply runs without stopping at a target. If the coil frosts or the bucket fills constantly, change the setting and let the unit defrost.

Book a visit

Still unsure about CO?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 844-8518