Honeywell under floor heating 7 day programmable unit. Switched it to standby for a few weeks and when I went to turn it back one got nothing but a blank screen. Any thoughts?
All other units in the house are working fine, breakers have been cycled but we're not tripped in any case.
Heating & Cooling - Honeywell
Answers & Comments
Do you have low voltage to the tstat? How about good batteries if any??
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