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Mend Maxim HE38C Home Heating Systems

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Mend repair fix Maxim HE38C home heating systems

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Mend Maxim HE38C Pressure Optimax Boiler

which is the valve to increase my water pressure on my Optimax HE38C boiler?

Ihave F37 flashing on my control panel but cannot for the life of me tell which valve to turn.I have one black and one blue that are able to turn, and neither cause the water to come in.

Sarah
November 2009
MaximMaxim HE38CHeating, Home Heating SystemsPressure Optimax Boiler

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