Norcold code

[exit210]

Refer has a code "no.co". Do any of you know what that means and how to fix it?

Thanks

[Sammie]

It would help to know what model you have, but you can try this link.

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Hope it helps
Sammie

[RV Wizard]

No Co stands for not cooling. If the control board does not see a change in resistance from the thermistor in a three hour period, the unit will shut down and give this fault code. There are many reasons why it may not be cooling. Turning the unit off and back on will allow it to start over again. If you have tried this and cannot clear it, a reset of the board will be needed. You will want to try to investigate the reason it did not cool first.
Was the coach level when the refrigerator was turned on?
Is the venting up the back and out the roof or side vent free flowing (not blocked)?
Do you smell any ammonia odor?
If using LP gas mode, has the burner assembly been cleaned recently?

We will need to know a lot more info to be much more helpful. Model number and how the unit is vented. Whether you can trouble shoot electrical 120 vac in and out of the control board. Check amperage on heating elements.

[HD4Mark]

A couple more are low DC if your batteries ran very low and even the door open alarm too many times. They tend to "lock out" and display that annoying no-co alarm then if it was not a non-recoverable problem a reset will get you going again.

Like the Wiz said, check the vent by removing the outside door and look for blockage. If you smell ammonia it can mean the cooling unit is no good so the reset will not help.

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