Central Heater Does Not Work In Auto - HVAC - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 01-25-2013, 09:34 AM   #1
Join Date: Jan 2013
Posts: 2
Rewards Points: 10

Central Heater does not work in Auto

Hi, I live in Florida and have a forced air central AC unit with 15kw heat. The AC works ok but the heater and air handler won't come on. All I hear is a relay or something that clicks like the heat is beginning come on. The air handler does not come on and I can see that electrical load is becoming lighter after a few seconds followed by another click. If I select the fan to run and I slide the heat on, it comes on running very well.
Incidentally, while running the heat in manual mode, I put the Auto/fan switch into auto and the fan speed dropped to half. I'm not sure if the airhandler is two speed or not. I seem to have both both phases working.



sweedzel is offline   Reply With Quote
Old 01-25-2013, 07:05 PM   #2
An old Tradesmen
Join Date: Oct 2008
Location: Somewhere
Posts: 32,951
Rewards Points: 7,268

Could be a bad sequencer.


beenthere is online now   Reply With Quote
Old 01-27-2013, 10:07 PM   #3
Join Date: Jan 2013
Posts: 2
Rewards Points: 10

Hey, thanks that sounds logical.
sweedzel is offline   Reply With Quote

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
Pilot on Williams millivolt wall heater goes out every 8 to 16 hours wornways HVAC 30 06-22-2011 03:29 PM
Convert portable AC to mini central AC. Any reason why this would not work? Red Squirrel HVAC 18 03-31-2011 08:13 PM
Hunter Thermostat Model 44860 Heat Pump Emergency Heat Does Not Work On Auto stvnhdmpa HVAC 8 12-08-2010 05:44 PM
Low speed blower won't work in auto mode Eric F HVAC 16 10-29-2008 05:24 PM
Central vac, freezer, and gas water heater on same circuit? curls00 Electrical 7 03-10-2008 09:57 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1