Honeywell TH5220D1003 Support Question
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Question posted by fcurren on July 27th, 2012
Honeywell Th5220d1003
Three weeks ago thermostat froze would not respond, replaced batteries still nothing. Froze at temp 50. AC repair replaced the thermostate and my transformer. Today, AC cut off, thermostat display showed 10 on the left and 0 on the right. bottom left said Done - Button under Done would not respond. 30 minutes ago it turned back on with inside temp and on the right 50. I increased the temp setting to 72, turned itself back down to 50. Any Suggestions. AC repair will be back today at 4:00
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