DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > HVAC > Another thermostat Question.

Help Support House Repair Talk by donating using the link above.
Thread Tools Search this Thread
Old 01-21-2013, 05:53 PM  
Join Date: Oct 2009
Posts: 97
Liked 3 Times on 3 Posts

Default Another thermostat Question.

I have the old mercury thermostat and recently had an issue with my propane HVAC. I had the furnace repaired. I've recently noticed my system has a cycle of staying off longer every so often. I first notice the other day when i thought things seemed a bit chilly. I looked, and the temperature was below the usual by a few degrees; however, it kicked on shortly thereafter. It runs normal cycles for a while afterwards. I would estimate 2 of these longer cycles in a days time. What could be causing this?

house92 is offline  
Reply With Quote
Old 01-21-2013, 06:26 PM  
Senior Member
Join Date: Nov 2007
Location: Grand Blanc, MI
Posts: 2,724
Liked 241 Times on 204 Posts
Likes Given: 113


Depending on the type of T-stat that you have it could be the anticipator (for a mercury style t-stat) or offset/differential (for a digital style t-stat).
kok328 is offline  
Reply With Quote
Old 01-21-2013, 07:29 PM  
Senior Member
Wuzzat?'s Avatar
Join Date: Jan 2010
Location: , Western Hemisphere, N of the equator
Posts: 2,358
Liked 168 Times on 155 Posts
Likes Given: 95


An intermittent problem caused by the repair? Or this has just started due to coincidence.

See if you can bring on the fault somehow.

Or if you can get a hold of a scrap mercury 'stat you can make a simple alarm circuit for an early warning of this problem.
Wuzzat? is offline  
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Ceil Heat radiant heating thermostat question RaiderANV HVAC 2 11-24-2012 02:40 PM
Looking for a new thermostat! BritKnee HVAC 2 06-30-2011 03:03 PM
Thermostat Help Please!!! kittycutie2007 Electrical and Wiring 6 10-17-2009 08:47 PM
Thermostat wiring Question Hippie HVAC 4 12-03-2006 09:01 AM
Need a new thermostat? buckethead HVAC 2 10-12-2005 06:03 AM