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Appliance Guru
Appliance Guru, Owner and Technician
Category: Appliance
Satisfied Customers: 14604
Experience:  Over 15 yrs. experience with 10,000+ in home repairs.
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Hello. I have an E3 Fault message on my Delonghi CF 210 air

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Hello. I have an E3 Fault message on my Delonghi CF 210 air conditioner. How do I clear this message and get my unit to work. It's hot in my house!
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The E3 code is a voltage problem. Try a different power source. Now if you still get the E3 code you have a power board issue which does happen from time to time on that unit so you would need a technician or if you are capable you could change out the board.
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Customer: replied 3 years ago.

Thank you. I've changed outlet and the unit is working but only the fan. The actual a/c portion still does not work. I'll take whatever relief I can get until I can get an electrician here to fix the power board.


Just curious how would I change a power board?

It is a bit tedious to do. You need to take off the whole cover.