I'm looking for some expert help in troubleshooting.
I have a 5 year old Trane HVAC system. Display on thermostat is blank, nothing works. I have power at the outlet the furnace plugs into. But no 24 volts at the thermostat (Red & White).
Furnace is a XV80, thermostat is a XT302C. Fuse is good, red LED flashes steady at 1 sec intervals.
The company that did the install says based on symtoms, it is a bad thermostat and not covered under my 10 year parts and labor extended warranty from Trane.
Any help or advice would be appreciated.