The lights stopped working the fans still work, any suggestions on what it might be,the transformer or the control board circuitboard
You will want to test the transformer on the unit and ensure that there is 120 vac going into it and 12 vdc coming out of it to the lights. If there is 120 vac in but not the 12 vdc coming out then the transformer is faulty and would need to be replaced. If there is no power to the transformer then the control board is faulty.
My hood completely stopped working one day. No function at all with lights or blower I assume it is the control board, but would be thrilled if it were the transformer. Any thoughts? also how best to access these parts
You would want to test the transformer on the unit. On one side it should have 120 vac. The other side should be 12vdc. If you are not getting 120 vac to the transformer then the control is bad and if you are getting the 120 but no the 12 then the transformer is bad and would need to be replaced.