I have a Hydroflex 60 and have been using it for the six year. My issue today is that the feeder motor does not start. I checked the feeder motor and it is good, i checked the on and off switch and it is good, the vacuum switch is good. When i turn the stove on the blower motor comes on and stays on. I put the meter on the wires of the feeder motor to test for power and nothing. Could the circuit board be bad? or a relay. some help would be appreciated.