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Mend Protherm 80e Boiler Heating Plumbing

protherm 80e?

my heating is working ok,but i have no hot water either when heating is on or off.
should i change the diaphram or the thermistor.
thanks.

david parker
November 2008
you should be able to see if the diaphram is ok if it pushes out the pin to operate the d/h/w switch

arthur
November 2008

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