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 02-20-2009, 10:54 AM   #1
Newbie
 
Join Date: Feb 2009
Posts: 1
Share |
Default

Problem with Furnace during Night Only


I am not in the business but a friend has a problem and I'm usually pretty good with being a weekend handyman. This one has me stumped however.

Eight year old colonial with an Aire Ease Ultra V unit in the attic for second floor HVAC in NY. Friend tells me that during the day, everything is ok and furnance works to keep heat at set temperature.

However at night, the furnance will not put out sufficient heat. He has changed out the thermostat and same problem occurs. He has attempted, with both old and new thermostat, to override settings and "hold" temp at 68 or 70, but can't get the furnance to get second floor above 62. First 7 winters never had a problem.

In the morning, everything goes back to normal and furnance heats the second floor normally.

Other than telling me the house is haunted -- has anyone heard of this?

BTW, he has a service contract with a local HVAC company -- they've been to his house and they say everything "checks out" and they have no idea what is wrong -- suggesting he needed a new thermostat (but he had already changed it by then).

Thanks.

Anthony

Dior55 is offline   Reply With Quote
Old 02-20-2009, 11:30 AM   #2
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,727
Default

Problem with Furnace during Night Only


Probably needs the coils cleaned.
May be even the blower wheel.

Is he setting the first floor unit to a lower temp then he use to.

beenthere is online now   Reply With Quote
Old 02-20-2009, 01:16 PM   #3
Member
 
hvaclover's Avatar
 
Join Date: Oct 2008
Location: Suburbs of Detroit Mi
Posts: 3,704
Default

Problem with Furnace during Night Only


Gas pressure could be a culprit too. If you manifold press is too low a high evening demand for heat could very well cause supply press to drop below sustanible combustion levels.

Morning rolls around, sun comes up warms and gas demand is lower.


Allied Air is the maker of AirEase and they have a consumer assistance line that will help if this problem is a dingy.


PS--there is only one thing thing in this world that is haunted--and that's my old lady...she scarier than any haunted house.
__________________
Just slow, not stupid.

Last edited by hvaclover; 02-20-2009 at 01:20 PM.
hvaclover 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
Heil Furnace Burner Problem timothyr HVAC 79 02-12-2014 07:01 PM
Lennox Furnace G27M Series Unreliable operation: pressure switch or else? sheppard1977 HVAC 7 01-14-2013 05:42 PM
Furnace Problem Juanacuna24 HVAC 1 12-28-2008 09:13 PM
Carrier Furnace Problem Boats1183 HVAC 1 11-11-2008 06:41 PM
another question for a miller furnace problem jb9270 HVAC 1 02-05-2007 02:04 PM




Top of Page | View New Posts

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