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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-26-2009, 07:35 AM   #1
Newbie
 
Join Date: Apr 2009
Posts: 15
Rewards Points: 10
Default

Tempstar fan will not come on in a/c mode


I have a Tempstar PA5542AKA when in A/c mode the condensor and fan comes on but the blower motor will not start. The blower will come on in heat mode and run fine. Is it something in the control board or maybe a sequencer? I never felt that it was putting out enough heat in the winter but all elements seamed to be energized so I left it alone.

scottie9656 is offline   Reply With Quote
Old 04-26-2009, 09:24 AM   #2
HVAC / Plumbing
 
Join Date: Feb 2009
Posts: 1,801
Rewards Points: 1,000
Default

Tempstar fan will not come on in a/c mode


will it come on if you switch fan on at the t.stat ?

kenmac is offline   Reply With Quote
Old 04-26-2009, 09:35 AM   #3
Newbie
 
Join Date: Apr 2009
Posts: 15
Rewards Points: 10
Default

Tempstar fan will not come on in a/c mode


No it will not come on with the t-sat on fan only
scottie9656 is offline   Reply With Quote
Old 04-26-2009, 09:42 AM   #4
HVAC / Plumbing
 
Join Date: Feb 2009
Posts: 1,801
Rewards Points: 1,000
Default

Tempstar fan will not come on in a/c mode


Probably the relay on the control board for high speed fan.. You can check with v m
kenmac is offline   Reply With Quote
Old 04-26-2009, 10:37 AM   #5
Newbie
 
Join Date: Apr 2009
Posts: 15
Rewards Points: 10
Default

Tempstar fan will not come on in a/c mode


It has 120 volts on all three wires with the unit off.
scottie9656 is offline   Reply With Quote
Old 04-26-2009, 11:27 AM   #6
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,561
Rewards Points: 2,802
Default

Tempstar fan will not come on in a/c mode


What wire where you checking from, that all 3 had coltage with teh unit off.
beenthere is online now   Reply With Quote
Old 04-26-2009, 01:31 PM   #7
Newbie
 
Join Date: Apr 2009
Posts: 15
Rewards Points: 10
Default

Tempstar fan will not come on in a/c mode


one goes to the blower,one goes to the sequencer, and the one on top goes to the coil.
scottie9656 is offline   Reply With Quote
Old 04-26-2009, 01:44 PM   #8
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,561
Rewards Points: 2,802
Default

Tempstar fan will not come on in a/c mode


Ok.

So your checking for voltage on a 220/240 volt motor.
You should read 120 weather or not its receiving a call to run.

The controls only open 1 leg of the 220.

Need to know if its getting 220/240 when the stat is set to fan "on" or the stat is calling for A/C.
beenthere is online now   Reply With Quote
Old 04-26-2009, 02:04 PM   #9
Newbie
 
Join Date: Apr 2009
Posts: 15
Rewards Points: 10
Default

Tempstar fan will not come on in a/c mode


no it is not getting 220 to the motor on run or A/C.
scottie9656 is offline   Reply With Quote
Old 04-26-2009, 02:15 PM   #10
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,561
Rewards Points: 2,802
Default

Tempstar fan will not come on in a/c mode


Not familar with that blower off the top of my head.

See where the green wire from the stat goes.
That is where your bad/stuck relay sequencer is.
beenthere is online now   Reply With Quote
Old 04-26-2009, 02:27 PM   #11
Newbie
 
Join Date: Apr 2009
Posts: 15
Rewards Points: 10
Default

Tempstar fan will not come on in a/c mode


The green wire from the stat actually goes to the control board, then a red wire goes to one of the sequencers would that be it?
scottie9656 is offline   Reply With Quote
Old 04-26-2009, 02:32 PM   #12
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,561
Rewards Points: 2,802
Default

Tempstar fan will not come on in a/c mode


Does a wire go directly from the board to the blower.
beenthere is online now   Reply With Quote
Old 04-26-2009, 02:50 PM   #13
Newbie
 
Join Date: Apr 2009
Posts: 15
Rewards Points: 10
Default

Tempstar fan will not come on in a/c mode


yes one goes to high speed tap on the blower and the other goes to a sequencer. I have a wiring diagram I will try too send.
scottie9656 is offline   Reply With Quote
Old 04-26-2009, 02:54 PM   #14
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,561
Rewards Points: 2,802
Default

Tempstar fan will not come on in a/c mode


The high speed is the one that supplies the second leg for the blower motor in cooling and for fan "on" setting.

Good chance the board is bad.
beenthere is online now   Reply With Quote
Old 04-26-2009, 03:08 PM   #15
Newbie
 
Join Date: Apr 2009
Posts: 15
Rewards Points: 10
Default

Tempstar fan will not come on in a/c mode


wher would be the best place to get a new one? It loks like it would be easy to exchange.

scottie9656 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
GE Electric Dryer won't shut off in auto/high heat mode jktbnelson Appliances 7 01-15-2011 07:39 PM
Windows XP Mode in Windows 7! poppameth PC Repairs & Upgrades 5 04-28-2009 12:18 PM
GE Dryer does not shut off in any mode brogrimm Appliances 4 01-30-2009 07:11 PM
fan does not work in "auto" mode on my Lennox Pulse 21 gas furnace OliverMogan HVAC 1 01-22-2009 08:54 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.