Author Topic: FANTECH VHR704R damper motor hot  (Read 1724 times)

Offline romka

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FANTECH VHR704R damper motor hot
« on: August 25, 2017, 01:40:34 PM »
Hello folks,

If someone could help me. I have a VHR704R HRV unit. There is a small damper door servo motor which occasionally does feel very hot (cant touch) while in closed door position. Same time it makes a buzzing noise. The motor itself does work (opens and closes damper door).

Is it control board issue or motor issue?