Indoor unit stops; E8 error; may be associated with very low indoor airflow

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Faulty indoor fan motor with built-in tachometer, Blocked blower wheel, Faulty fan speed detection circuit on PCB, Loose fan motor connector

Safety: Isolate power before opening the indoor unit.

Clean blower: Remove dust buildup from the blower wheel, which can slow the fan and cause speed errors.
Check connector: Ensure the multi-pin fan motor connector is fully seated on the PCB.
Observe fan speed: Run the unit and listen for irregular fan speed changes. If the fan stalls or surges, replace the motor.
PCB check: If a new motor still triggers E8, the indoor PCB may not be reading the tach signal correctly and should be replaced.

Hard 4/5

Indoor DC Fan Motor

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