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I have a - comfort-set II thermostat type 1f90-60 heat only

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I have a white-rogers comfort-set...
I have a white-rogers comfort-set II thermostat type 1f90-60 heat only thermostat on Hydronic system with multiple B & G heat motor zone valves. I get a red on light intermittently and also the battery indicator comes on during the time the red light has cycled off. This happens every so many seconds when the thermostat is calling for heat. I tried another zone valve and also another thermostat on that circuit but the problem still exists. The other thermostat on the system does not do that
Submitted: 2 years ago.Category: HVAC
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Answered in 12 hours by:
12/29/2015
HVAC Technician: Phil, Mechanical Engineer replied 2 years ago
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6,938
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial
Verified

Hello, the problem in that case is most likely in the zone controller box... made by Honeywell or Taco possibly... I need a photo of the box with the door open, and the brand and model number of the zone control box. Let me know what you can find in those regards, ***** ***** go from there.

.

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Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6,938
6,938 Satisfied Customers
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial

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