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Question About Honeywell Thermostat T8400B 1018
This product used to control temp in radiant heati...

This product used to control temp in radiant heating (floor) room in a private home. I get only two temps: too hot, too cold. Is there a problem with thermostat or with water circulating pump that Thermostat controls? How do I troubleshoot?

Asked by John H. Field on 12/04/2013 0  Answer

ManualsOnline posted an answer 10 years, 10 months 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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