Sump Heater Problem - 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 07-30-2010, 08:38 PM   #1
Member
 
Join Date: Aug 2008
Posts: 131
Rewards Points: 75
Default

Sump Heater Problem


The sump heater on my Trane XL1200 has shorted to the compressor case. This same thing happened about 11 years ago and I fixed it by replacing the sump heater and the discharge line thermostat. I'm thinking about replacing this unit soon. I disconnected the sump heater to get the condensing unit running again. Was wondering if it will cause any damage to operate it without the heater. The thermostat in series with the heater closes at 73F and opens at 105F. Since it's hot outside I was thinking it won't do any harm to run it like this for a while.
Am I thinking correctly?
Thanks.

Advertisement

kb3ca is offline   Reply With Quote
Old 07-30-2010, 09:00 PM   #2
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,442
Rewards Points: 4,530
Default

Sump Heater Problem


If your going to replace it before next spring. Run it without.

If you want to use it next year. Replace it.

Advertisement

beenthere is online now   Reply With Quote
Old 08-01-2010, 10:21 AM   #3
Master HVAC Technician
 
Join Date: Jul 2010
Location: Upstate NY
Posts: 7
Rewards Points: 10
Default

Sump Heater Problem


Sump heaters are sometimes an afterthought /quick fix by the manufacturer. Usually due to an undersized or lack of an accumulator on the suction side of the compressor. The concern is that refrigerant will migrate and pool in liquid form at the suction port. When the unit starts, it runs the risk of trying to pump liquid refrigerant, possibly causing compressor damage.
I have seen many units that have run for years without it because no-one ever noticed that it went bad. I'm not sure if the risk is all that great by not replacing it, but remember that Trane supplied it, and it cost $, so someone told them it was a necessity.
Rusty999 is offline   Reply With Quote
Old 08-01-2010, 10:29 AM   #4
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,442
Rewards Points: 4,530
Default

Sump Heater Problem


Trane uses a CCH on many of their straight A/C units. Simply because the compressor stores a lot of oil. The more oil a compressor holds. The better chance the liquid refrigerant will migrate to it. And be washed out when the compressor starts again.

On their Climatuff compressors in heat pumps without an accumulator, the accumulator is in/part of the compressor.

Scroll compressors often don't "need" a CCH, because they don't hold as much oil as a recip does.
But, in the install instructions. They will tell you to add one, if the line set length and coil match up requires more then X amount of additional refrigerant for a full charge.
beenthere is online now   Reply With Quote
Old 08-01-2010, 12:08 PM   #5
Member
 
Join Date: Aug 2008
Posts: 131
Rewards Points: 75
Default

Sump Heater Problem


Thanks guys for your input. This unit is a heat pump with the Climatuff compressor. It is running just fine right now while it's warm/hot outside and no strange noises from the compressor when it starts up. I'm waiting on an estimate from a local dealer to replace the unit with another Trane, probably the XL15i. If the new unit is too pricey I will order the sump heater and discharge line thermostat and repair the unit just like I did 11 years ago. The unit is 18 years old now so I'm thinking of bitting the bullet and getting a new one while there are some rebates/tax credits in play.
This is a great forum and thanks again for your input.
kb3ca 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
water heater drip kdange1 Plumbing 6 10-29-2014 06:26 PM
A O SMITH gas water heater problem joeyuk Plumbing 62 01-24-2013 12:31 PM
Climate master cxm/dxm electronic heater problem Ballastar HVAC 1 06-10-2010 07:19 AM
Sump Pump Electrical Problem loftezy Electrical 5 09-06-2009 07:14 PM
Electric Baseboard Heater Problem goombie Electrical 9 12-23-2008 01:13 AM




Top of Page | View New Posts