John for Model Number ME21H706MQS Exhaust fan will turn on only to the lowest setting. will not increase speed. the front left thermostat reads 2.4 ohms, (two red wires); the front right thermostat and the top thermostat both read 0.00 ohms. Is this a thermostat issue or a control board issue?
Answer John, Thanks for the question!!! It would not be a thermostat. It would be either the fan motor or a relay on the control board. Check for the proper voltage from control to fan, if the voltage is correct replace the fan. If not replace the control board. Read More... Answered by AppliancePartsPros.com | Wednesday, December 8, 2021