Daikin AC Error Code E5 — Outdoor Fan Motor Fault

What Does This Error Mean?

E5 on a Daikin AC indicates an outdoor fan motor fault. The outdoor fan motor drives the fan that pulls air through the condenser coil to reject heat. When this motor fails or locks up, the condenser overheats and the compressor shuts down to prevent damage.

Affected Models

Daikin FTKF Series
Daikin FTKG Series
Daikin ATKF Series
Daikin Inverter Split AC (all models)
Daikin 1 Ton / 1.5 Ton / 2 Ton Inverter

Common Causes

Outdoor fan motor bearing worn and seized
Fan motor run capacitor failed — motor cannot start
Foreign object lodged in the outdoor fan blade
Fan blade cracked or broken — imbalance causing the motor to stall
Fan motor winding failure — motor draws excessive current
Inverter board fault preventing the correct signal reaching the motor

How to Fix It

Turn off the AC and go to the outdoor unit.

Look through the top grille to see if there is any visible debris (leaves, plastic bag, bird nest) in the fan area.
With power OFF, check if the fan blade spins freely by pushing it gently.

Do not put your hand through the grille — use a long stick to gently push the blade edge. If the fan is completely locked and will not turn, the bearing or motor has seized.
Restore power and attempt one restart.

If a foreign object was removed and the fan now spins freely, E5 may clear. Watch the outdoor unit — the fan should be spinning within 30 seconds.
If E5 returns or the fan does not spin, call a Daikin technician.

Fan motor or capacitor replacement is a standard repair for experienced HVAC technicians.

When to Call a Professional

E5 requires a licensed HVAC technician. The outdoor unit contains high-voltage capacitors that remain charged after power off. Do not attempt to access the outdoor unit internals.

Frequently Asked Questions

How do I know if the Daikin outdoor fan is spinning?

You can see the fan through the top grille of the outdoor unit. The fan should be spinning whenever the compressor is running. A completely still fan when the AC is on is a clear sign of a fan motor or capacitor fault.

Can a failed outdoor fan capacitor look fine visually?

Yes — capacitors can fail internally without any visible signs such as bulging or leaking. A technician must test capacitance with a multimeter to confirm whether it has failed. Capacitor replacement is inexpensive and a common fix for fan motor start failures.