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Question About Honeywell Thermostat T8600C/T8601C/8603C
I have a Honeywell Chronotherm III model T8600C/T8...

I have a Honeywell Chronotherm III model T8600C/T8601/T8603. The Energy Saving Light & the System Light keep blinking & clicking. The Monitor say AC (alternate current). We replaced the batteries twice. We also reprogrammed it. Any ideas what we can do? The furnace keeps going off & on. It is very, very cold here today. Thank you

Asked by Sharon on 11/10/2014 0  Answer

ManualsOnline posted an answer 10 years ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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