I've just had someone in for yearly maintenance on my furnace - a
KeepRite DC90. The guy discovered a popped ring in the heat exchange
and told me that this was pretty common with this model.
I'm just wondering the validity of this statement, since I'm not able
to find a single scrap of information in Google groups or on the web
itself regarding this issue.
I've been told that the repair will cost $500 and due to
regulation/law, the gas will not be turned back onto the furnace until
the repair is complete.. I'm really just looking for any information I
can get my hands on at this point.
Thanks in advance!
The Keeprites had a history of this from around 1990 to 1998.
The heat exchangers were held together with large crimped rings, which
would pop out, allowing the two halves of the exchanger to separate.
You could sometimes see them lying on top of the blower panel inside the
housing, but only if you could open the plenum and look down with a
Sometimes the rings would end up in the blower housing below the squirel
The tell tale sign is a tripped spill switch at the burner compartment, or
a melted or scorched plastic screen on the intake at the furnace housing
(single pipe sysytem).
The reason the spill switch trips is because the ventor can't handle the
extra volume of air being sucked into the exchanger through the separated
halves, and some of the flue gases spill back into the burner area.
The Goodmans used the same exchangers for a while.
The fix is a new exchanger, and yes, the tech was right to shut you down.
It's a hazard. Don't use it until it's fixed.
Lastly, the wholesaler will charge your tech a handling fee unless they
originally sold the furnace to him.
Also ,expect to pay labour charges.
Guess who else used that heat exchanger? Lennox. When the rings first
started popping/separating the fix was a bolt, nut and washer kit.
This had to be done to the top, first ring of each heat exchanger cell
BEFORE it popped loose. I never did that fix. Didnt seem right to me.
I did however, see it on the Lennox's. They did this from the factory.
Look at that first ring at the top and there's the bolt.
It was common with the ICP's. Also found several secondarys where the
plastic end collector would crack. One had a whole the size of my fist
and never tripped the roll-out. It did however trash the camstat
limit. Thats the only way I knew. It was cycling on/off on the high
limit till it just failed completly.
$500 is about 1/2 what I charge in warranty but I replace the primary
and secondary while Im in there. "Your mileage may vary"
Ya, you're right Bubba.
Lennox did have a kit for that.
And yes, the Keeprite secondarys were a pain in the ass (plastic ones).
I've changed a few, and I always come away with a few cuts from the
The telltale sign there is usually water in the blower housing or on the
vestibule.Or like you said, also tripped limits.
The new Keeprites aren't bad, but I wish they'd get rid of those fucking
door panel screws!
Yup, the door screws suck big time. Remember when they changed the
door screws from the ones that you couldnt get unscrewed because the
pressed in bolt got loose and just kept turning? And now we have these
new ones that suck just as bad. :-)
I had a 10 ish year old Tempstar last week leaking water all over on
the blower shelf and down in the blower area. Rusting out everything.
They just moved into the house. I figured it was the plastic
secondary. I pulled the limit swich out looking for popped rings or
signs of water. None. I pulled the blower assembly and laid a big
garbage bag inside the blower area and crawled my big ass in there.
Started looking up through the secondary for the rings. Nothing. Got
part of my hand and a mirror on top of the secondary and started
scraping and brushing the top to see if I could push a loose ring out
where I could see it. Nothing. I pulled the inducer assembly off and
then pulled the "tommy gun" inducer housing piece loose. Looked into
the end of the plastic secondary. No crack or breaks. Only place the
water was coming from was the inducer housing itself. Two of the clips
that hold the 2 inducer halves together were completely rusted away
and the sealant failed. Put everything back together and installed a
new inducer assembly. Good as new again.
Nice bit of detective work!
I hope the new ones hold up better.
I'm thinking of switching to York furnaces for my installs. but they're
another half hour drive from me.
If these new ones prove faulty, I'm giving up on Keeprite.
I believe KeepRite is an ICP product sold out of country...like Canada
I think I remember seeing the sticker when I was at the factory in
Lewisburg, TN ...some years back
And ICP's as well as Janitrols (Goodman) were famous for popping rings. We
install 44 GMP's in a complex in 1992 and replaced 31 of ht Xchangers
already...the key is to run the gas pressure at about 2.8 and keep the damn
filters clean. Last thing tenants do is change the filer if at all
United Technologies...(Carrier) owns ICP,but still (supposedly) a separate
But when you get a Comfortmaker, Arcoaire, Tempstar or any other ICP A/C is
has an add on Carrier liquid line drier with it
And lately, ICP has been converting over to shit brain Carrier system
Carrier is actually involved in a class action suit right now.
People are claiming they used some bad material in their earlier
heat exchangers. Carrier disputes it, will be interesting to see
And as far as ICP heat exchangers go they are junk...if you don't
find popped riglets or a cracked secondary, put your mirror inside
the burner ports and look up on the inside, near the orange high
temp silicone. You will usually find small "baby cracks". We are
allowed to red tag and replace the heat exchanger just for that,
even though there is no flame impingment or no carbon monoxide.
--------------------------------- --- -- -
Posted with NewsLeecher v3.7 Final
Web @ http://www.newsleecher.com/?usenet
------------------- ----- ---- -- -
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.