E3 ol 4 time the speed of the indoor fan has gone out of control.
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.
The causes for this could be a wiring mistake or a faulty control board with the indoor unit or the outdoor unit.
E1 ol 2 time indoor outdoor units communication error.
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.
Carrier air conditioning error code eo ol 1 time indoor unit eeprom parameter error.