Safety: Disconnect power before removing the front cover or blower housing.

Steps to address E6:

Check for obstructions: Remove the front grille and filter. Inspect the blower wheel for debris, ice, or foreign objects preventing rotation. Clear any obstructions.
Spin test: Gently spin the blower wheel by hand. It should rotate freely without grinding or binding. If it is stiff or noisy, the motor bearings may be failing.
Inspect wiring: Locate the indoor fan motor connector on the control board. Reseat the plug and check for loose pins or corrosion.
Check voltage (advanced): With power restored and extreme caution, a technician can verify that the board is sending the correct DC voltage to the motor. Lack of voltage indicates a board issue; correct voltage with no rotation indicates a bad motor.
Replace motor if needed: If the motor is seized or the Hall sensor feedback is faulty, replace the indoor fan motor assembly with the correct Friedrich part. Transfer the blower wheel if it is not included.
Board replacement: If a known-good motor still triggers E6, the indoor PCB may need replacement.

Warning: Do not bypass safety interlocks or run the unit with covers removed.

Unit displays E6, may run briefly then shut down

Possible Causes