Daikin E7: the outdoor fan motor system stopped reporting what it should

What Does Error E7 Mean?

Daikin places E7 in the outdoor unit division as a malfunction of the outdoor fan motor system. The word system is doing real work in that phrase: the entry covers the motor, the drive circuit that powers it, and the feedback path that confirms it turned. Seeing the fan stationary confirms the symptom but not the cause. Applies to: Daikin outdoor units covered by the SM-TS3 malfunction chart, including room air, SkyAir, and VRV outdoor equipment This meaning is taken from the Daikin malfunction code chart, which assigns codes by division rather than by model. Outdoor fan arrangements differ between a single-fan room air unit and a twin-fan SkyAir or VRV frame, and the checks for each come from the service manual covering that outdoor model. Owner-safe checks: Stop the system from the controller so it is not making repeated start attempts against a fan that is not turning. | Look at the outdoor unit from a safe distance and note whether the blade is completely static, turning slowly, or turning normally. | Isolate the outdoor unit at its dedicated switch before removing leaves or debris resting against the outside of the guard. Qualified technician: Testing the fan drive output, measuring motor windings, and inspecting feedback wiring inside an outdoor enclosure are energised tasks for a qualified technician. | Never reach through or remove the fan guard. A variable-speed outdoor fan can start without notice, including while the system appears to be idle.