Honeywell Chronotherm III furnace - http://www.hvacmechanic.com/ Forums

Original message

sydneyabby

63.225.249.20

"Honeywell Chronotherm III furnace" , posted Sat 29 Dec 21:55

i have a message on my thermostat panel that says the temp i am holding my house at with a -AC next to it. i have never seen this before, nor does the inside of the panel reference this as something to watch for. i replaced the batteries in the panel hoping this works. anyone have any idea what the -AC means? did i do the right thing? what else can i do? thanks

Replies:

Houston204

98.196.66.53

"Re(1):Honeywell Chronotherm III furnace" , posted Sat 29 Dec 23:57

No AC voltage is present. Check the breaker for your furnace. You may need to replace a fuse in your furnace.

"Tip of the Day" Remember to remove power first.

sydneyabby

63.225.249.20

"Re(2):Honeywell Chronotherm III furnace" , posted Sun 30 Dec 00:09

Would flipping the breaker in my fuse box do the trick or is there an actual fuse in the furnace itself that needs to be changed.

Houston204

98.196.66.53

"Re(3):Honeywell Chronotherm III furnace" , posted Sun 30 Dec 01:48

Flipping the breaker may work. Do you have a heat pump? or a package unit?

Your circuit board may have a fuse in it.(usually 3 amp for gas heat and 5 amp for electric heat) If it has popped and you have a heatpump you should look over the wiring to your outdoor unit.

"Tip of the Day" Remember to remove power first.