precisiontemp hydronic heating problem
We are having problems with the hydronic heating in our '09 ventana.
System seems to work fine for a few hours then the blower fans continue to run but blow cold air. Down below cannot hear the pump running and the supply line is cold while the return line is hot. Hot water is fine. Last fall we had a service guy replace the pressure relief valve after talking to PrecisionTemp. Worked fine for a few days last week when I took it out of storage and then after the first night of camping woke up to find the same problem had happened again. I suspect that the zone pump is seizing up.
Has anyone had similar problems?