Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater
Set pt message on display what is this
Posted by Anonymous on
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
I have had the same problem- twice. It was a similar but different problem each time. The -AC means the ac control voltage isnt making it to the thermostat. In my case both times it was a switch in the control circuit that wasn't closing properly. The easiest was the front cover switch. If the front cover is removed from the furnace or has vibrated loose, the switch will open, preventing the furnace from running. The other instance I ran into was a flow switch on the exhaust blower which ensures the there is flow OUT the chimney. The switch wasn't functioning, so the furnace wouldn't start. The blower would come on for a short time, but the burners wouldn't light.
Hope this helps,
Posted on Dec 12, 2008
If you are successful in setting it lower , you will end up with frozen pipes and large plumbing bills. Since the internal walls of a building can be as much as 20 degrees lower, that the room.
And the location of the thermostat, may be even warmer, that that of the areas where the plumbing is.
Now what is your reason for wanting the thermostat operate at a lower temperature?
Posted on Jan 31, 2010
Tips for a great answer:
Sep 13, 2015 | Cars & Trucks
Aug 07, 2011 | Honeywell Heating & Cooling
Jan 22, 2010 | Heating & Cooling
Nov 08, 2009 | Honeywell Programmable Thermostat Heater
Oct 14, 2009 | Honeywell Electronic Programmable...
Sep 27, 2009 | Honeywell Electronic Programmable...
Jan 06, 2009 | Honeywell Electronic Programmable...
Dec 30, 2008 | Honeywell Power Humidifier: Furnace...
42 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: