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Also I know everyone is going to tell me to find out where I’m loosing voltage but that’s the problem I’m not loosing voltage anywhere except I don’t have 24v at the valve or on the output to the valve. Also to clarify we have tried a new control board and also a second new one just incase the...

I’m new to this forum. I’m currently repairing a mastertemp 400 at a commercial property and have a very strange issue. We recently replaced the gas valve on this heater and now two weeks later it is not working. Currently I’m not getting power to gas valve itself. The ignition control module is...