E1 ol 2 time indoor outdoor units communication error.
Carrier ac indoor unit displays error code e1.
Carrier air conditioning error code eo ol 1 time indoor unit eeprom parameter error.
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.
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.
If you re handy with electronics you may be able to fix these problems but if not it s time to call a pro.
Troubleshooting an e1 error code.
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