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Try this : Start the unit using the remote control, after that push the C button
of remote control if C display at the unit then off the unit and plug
out the power supply. Then plug in again and "on" the unit using the
E3 means "unit-abnormal protection to avoid occurence of unit damage."
Manufactures does not recommend that a homeowner try to attempt a repair on a code
like this as it indicates possible wiring or internal problems. Have you
checked for an internal fuse on the circuit board? I would also check
the incoming power to make sure you have the proper voltage. You can
also try unplugging the unit, waiting 30 seconds and plug back in to see
if the code disappears. According
to A/A brands, if this code appears, shut off device and call authorized
service company. I'm just trying to get you some things you can check
yourself prior to doing that.
Thank you for using FixYa. F1 refers ro a fault with either the control board or touch pad. Both may need replacing to clear this error. E3 refers to a fault with the temperature sensor and should be replaced. This unless the repair done by yourself may work out expensive.
Start the unit using the remote control, after that push the C button of remote control if C display at the unit then off the unit and plug out the power supply. Then plug in again and "on" the unit using the remote control.