Carrier Ac Indoor Unit Displays Error Code E1

Other causes for an e1 error code include loose internal connections a communication problem between the indoor and outdoor parts of the unit and a faulty control panel.

Carrier ac indoor unit displays error code e1.

If you re handy with electronics you may be able to fix these problems but if not it s time to call a pro. E3 ol 4 time the speed of the indoor fan has gone out of control. If an e1 error code shows up in your air handler that means there is a communication error either with the indoor unit or the outdoor unit. One of the main problems in the inverter air conditioner is e1 or communication error indoor outdoor the most common reason for an e1 error code to be displayed on your air conditioner s front panel is to remind you that the unit s air filter needs to be cleaned.

The causes for this could be a wiring mistake or a faulty control board with the indoor unit or the outdoor unit. Troubleshooting an e1 error code.