Question about Honeywell Heating & Cooling

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I have a honeywell control unit that has a corrosion problem in the aa battery compartment, When I change the batteries every 12 months I notice it is getting worse. I put a new set of batteries in and the display goes all blank and blinks slightly and just wont work, After a while it comes good but I'm worried one day it wont work at all. I have a gas ducted heating unit and were the control unit is on the wall, There are two wires that connect into the back of the honeywell control unit that is playing up. The unit I have has week settings and weekend settings and Hold temp. Can you please help me with what unit I need to purchase to replace the not always working control unit I have. Same brand preferred.

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Your problem is bad connections due to corrosion. If you would do something to correct that you wouldn't need to replace anything. Batteries ooze acid when they go bad, to counteract that you need to apply a paste of baking soda with water on a used toothbush and scrub all the funky stuff away. Paper towels are good to wipe it off with until it's dry. Take a small file or a small piece of sandpaper and dress or shine up the metal parts that contact the batteries and then spray the parts with contact cleaner from Radio Shack. Your batteries need to be changed BEFORE they purge their innards all over your good work next time - don't let it happen again.

For exact parts replacement you might find some honeywell numbers that may actually make a hit on Google. Even the most bizzare combo of Alpha and numeric gibberish in quotes will sometimes yeild pure Google gold. Other than dealing with a honeywell employee, I have no other suggestions on hunting down your part.

Posted on Sep 06, 2009


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Posted on Jan 02, 2017


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