- posted 12 years ago
I woke this morning to no heat in the north section on our home. I
check the thermostat and it was showing the demand at 72 degrees and
temperature at 64 degrees. I felt both zone valve and both were warm.
I didn't see the manual override lever. I Goggle the "Zone Valve Power
Head (Series 570)" and came up with a Manuel override. Piece of cake
from there; "Turn the thermostat off, twist clock to remove" Once off
I saw the Manuel level. Replace the unit close the level and we have
I found a unit online for 64 dollars plus shipping. I call local and
for a plumber supply that has one for 63 dollars plus tax. Almost the
same cost but no waiting for a few days as I played thematic control.