Forums | Home Repair | Home Improvement | Painting | Interior Decorating | Remodeling | Landscaping


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 04-09-2010, 10:06 PM   #1
Newbie
 
Join Date: Apr 2010
Posts: 3
Share |
Default

Frost around pipe from Heat Pump to furnace


Last week I changed the location of my thermostat due to some inside renovations. I made sure everything was wired correctly, but ever since I removed it only cold air blows from the registers. This went on for a week, and while it would periodically blow heat, for the most part it only blew cold.

Tonight I just happened to walk past the heat pump and noticed ice around the pipe from the heat pump to the furnace in the attic. I looked inside the heat pump and the piping was completely covered in ice and frost. I went in the attic and there was frost around all the piping (I could see it where the insulation was tied to the pipe).

I am not sure what is wrong with the system, I know it was something that I had done because I didn't notice anything until I moved the thermostat. Also this entire winter the heat pump would run very loudly, but didn't notice anything wrong with the pipes or anything else. Any help would be much appreciated and have a good day!

Thank you,
William


Heat Pump: Amana TempAssure RFH24

stumpw is offline   Reply With Quote
Old 04-10-2010, 05:48 AM   #2
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 23,542
Default

Frost around pipe from Heat Pump to furnace


Might be low on charge, since you said it was loud this winter.

Was last week, the first time you used it cor cooling since you changed the thermostat.

beenthere is online now   Reply With Quote
Old 04-10-2010, 05:53 AM   #3
Member
 
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Default

Frost around pipe from Heat Pump to furnace


Check in the thermostat for wires shorted. Also see if there's a little switch labled O/B, it should be in the O position.
Marty S. is offline   Reply With Quote
Old 04-10-2010, 06:55 AM   #4
Newbie
 
Join Date: Apr 2010
Posts: 3
Default

Frost around pipe from Heat Pump to furnace


beenthere: After I check the O/B switch I'll look into getting it recharged, and I was actually using the heat pump for heating last week. I think that's why I was suprised to see everything frosted.

Marty S: I'll check the O/B switch, I remember seeing that while fixing the wires, I'll also check to see if there's anything exposed in the wiring that would cause a short. Can you tell me what the O/B switch is for? What to they stand for?

Thank you guys! If anyone has any other suggestions please let me know!
stumpw is offline   Reply With Quote
Old 04-10-2010, 12:39 PM   #5
Member
 
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Default

Frost around pipe from Heat Pump to furnace


That's the 24 volts to your reversing valve. Most heat pumps energize it in cooling, the O position. Rheem/ Ruud is the only one I know of the uses the B position. A short in the O wire or the switch in the wrong position will have it cooling when calling for heat and cause the freeze up.
Marty S. is offline   Reply With Quote
Old 04-10-2010, 09:45 PM   #6
Newbie
 
Join Date: Apr 2010
Posts: 3
Default

Frost around pipe from Heat Pump to furnace


Thank you guys! It looked like the switch was accidentally set to B when I moved it. Now, if I could only make that sound go away. I will probably see if a friend knows a friend in HVAC that can come out and help me. If I have any other problems I will definitely be back here! Thanks again.

stumpw 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
How to stop auxillary heat from coming on defrost cycle and limit auxillary heat use? twilightcall HVAC 34 12-28-2010 06:53 PM
New Heat Pump Problems Cooling Zombify HVAC 2 04-06-2010 03:42 PM
What temp does my Heat Pump stop producing good heat or what is the threshold? twilightcall HVAC 15 02-12-2010 09:46 PM
heat pump question David from MD HVAC 3 02-01-2010 08:42 PM
heat pump cut off set point oldswab HVAC 4 12-02-2009 02:09 PM




Top of Page | View New Posts

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