Hvac - 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 12-19-2008, 01:06 AM   #1
Newbie
 
Join Date: Dec 2008
Posts: 1
Rewards Points: 10
Question

Hvac


YORK DIAMOND 80 Series
Furnace comes on and then cycles,blower, heat and heater shuts down, then cycles again. after 3 cycles it shuts down and blows only cold air. blower never shuts down. You turn off the furnace then back on, it go's 3 cycles of heating and heat shuts down and blower blows cold air, blower never shuts down. feel it's caused by some type of safty switch, but which one and how to test it

Advertisement

rhilton is offline   Reply With Quote
Old 12-19-2008, 05:02 AM   #2
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,548
Rewards Points: 4,734
Default

Hvac


Most likely the high limit.
It indicates, that either, the air filter is dirty and restricting.
Or, the A/C coil is dirty and restricting.
Or, you have blocked/restricted supplies or returns.
Or, you have alays had low air flow, and the limit switch is wearing out.

Advertisement

beenthere is offline   Reply With Quote
Old 12-19-2008, 08:37 AM   #3
Member
 
Join Date: Sep 2008
Location: Upstate New York
Posts: 368
Rewards Points: 250
Default

Hvac


Yup, my first thought was your high temp limit switch is tripping. Check all the obvious things first as been has mentioned, then check out that switch.
dac122 is offline   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
Do I need a HVAC return vent in basement? westing HVAC 13 04-03-2014 02:43 AM
History of HVAC Industry Brands winkydink HVAC 8 03-25-2011 08:28 AM
HVAC plans for remodel wease HVAC 3 03-23-2011 11:47 AM
HVAC Options-Recommendations? MIMaguire HVAC 17 06-10-2008 08:09 PM




Top of Page | View New Posts