Question about Source1 CTS Series Model S1-THPU32P7S Color Touchscreen Thermostat
I have a York YZE 2 stage heat pump and a modulating gas furnace with ECM connected to a THPU32P7S source-1 t-stat. I changed out the old Honeywell 8300 stat and it's never seemed to work very good since... Can't get the gas furnace to heat.
All York/JCI thermostats made by Venstar
The setup is probably incomplete. Did you configure the thermostat for a 2 stage heat pump? The heat pump should have a thermostat wire connected to R, C, Y1, Y2, and O, that makes 5 wires. I suspect you are only using first stage compression and or first stage blower speed.
Posted on Dec 12, 2013
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Posted on Jan 02, 2017
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