Thermostat Clock Runs Fast - HVAC - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 07-07-2010, 10:27 AM   #1
Newbie
 
Join Date: Jul 2010
Posts: 3
Rewards Points: 10
Default

Thermostat clock runs fast


We have a Totaline P474-1050 thermostat in our condo unit and noticed the clock runs like it's on crack. The minutes change after 60 flashes of the colon, but it's considerably faster than 60 seconds, hence the clock will be hours off after several hours.

We don't currently use the timed functions of the thermostat, so in that regard this is minor, but hope this isn't indicative of something worse than just a fast clock…

Your thoughts?

Advertisement

yankeeNH is offline   Reply With Quote
Old 07-07-2010, 02:09 PM   #2
Member
 
Join Date: Jul 2008
Location: NW of D.C.
Posts: 5,990
Rewards Points: 2,000
Default

Thermostat clock runs fast


Quote:
Originally Posted by yankeeNH View Post
the clock will be hours off after several hours.
There may be a little adjustment wheel somewhere marked with a + and a -. Turn it toward the -.

This is assuming the clock is crystal-controlled rather than using the 60.000 Hz as a timing pulse.

Advertisement

Yoyizit is offline   Reply With Quote
Old 07-07-2010, 06:00 PM   #3
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,571
Rewards Points: 4,780
Default

Thermostat clock runs fast


Check voltage to the thermostat. If its 30 or less. Then either you have a harmonic problem(line voltage wire running parallel tot eh low voltage wire) or a bad thermostat.
beenthere is online now   Reply With Quote
Reply


Thread Tools
Display Modes

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Carrier Edge Thermostat Installation Issue ptalar HVAC 1 07-13-2010 06:40 PM
Problem with Lennox Pulse Furnace Wiring to Thermostat scalvin Electrical 4 12-30-2009 08:48 PM
Two Wire 24V Thermostat to Digital Thermostat on Pellet Stove jrodtaclet Electrical 4 09-15-2009 06:37 PM
Thermostat from Manual to Digital trinamillersmit HVAC 5 07-02-2009 10:21 AM
ac/furnace runs whatever thermostat settign donbohn HVAC 1 06-20-2009 06:42 AM




Top of Page | View New Posts