Daikin error code E7
What it means
Outdoor DC fan motor fault.
Possible causes
Fan motor failure or stalled fan Mechanical obstruction around blades Driver or IPM fault preventing correct fan operation
Suggested fix
Confirm that the fan rotates freely (power isolated) and check motor resistance and drive voltages; replace the fan motor or outdoor control board according to the results of detailed diagnostics.
Safety first. Isolate the power supply before inspecting any unit. Refrigerant-circuit
and electrical repairs must be carried out by a qualified, registered technician.
Other Daikin codes
- A1 — Indoor PCB defect or internal failure.
- A5 — Freeze-up protection activated for the indoor heat exchanger.
- A6 — Indoor fan motor fault.
- C4 — Faulty indoor heat exchanger temperature sensor.
- C9 — Faulty indoor suction air (room) temperature sensor.
- E1 — Outdoor circuit board fault.
- F6 — High pressure control activated in cooling mode.
- U0 — Refrigerant shortage or undercharge detected.
- U2 — Power supply voltage drop or main circuit overvoltage.
- U4 — Transmission failure between indoor and outdoor units.