Trane XT-95 furnace blows cold air after 15 minutes
#1
12-14-22, 09:19 PM
Trane XT-95 furnace blows cold air after 15 minutes
Hi. Could you help me with this problem?
My Trane XT-95 furnace blows hot air at first, then blows cold air after approximately 15 minutes.
Diagnostic light blinks 3 times, indicated pressure switch error, then I replaced the pressure switch, no dice.
Today, I replaced 3'' limit switch, no dice.
Should I buy flame rollout switch and try? Thank you.
Thanks and happy holidays
My Trane XT-95 furnace blows hot air at first, then blows cold air after approximately 15 minutes.
Diagnostic light blinks 3 times, indicated pressure switch error, then I replaced the pressure switch, no dice.
Today, I replaced 3'' limit switch, no dice.
Should I buy flame rollout switch and try? Thank you.
Thanks and happy holidays
#2
12-15-22, 01:45 AM
Group Moderator
Welcome to the forums.
XT95 is a group number. Please post the complete model number off the ID tag.
The three flash code should indicate a pressure switch opening.
A good pressure switch will not operate 15 minutes and then fault. It sounds like you have a clogged condensate drain or water in the inducer getting into the pressure switch line.
It will not be a flame rollout issue.
XT95 is a group number. Please post the complete model number off the ID tag.
The three flash code should indicate a pressure switch opening.
A good pressure switch will not operate 15 minutes and then fault. It sounds like you have a clogged condensate drain or water in the inducer getting into the pressure switch line.
It will not be a flame rollout issue.
erictom
voted this post useful.
#3
12-15-22, 11:23 AM
Thanks for your reply, Sir.
The model number of the furnace is 4txfh054cc3hhaa.
Seems like the condensate drain line is clogged. I tried to put some bleach and drain cleaner liquid into the
line, I didn't see the line outlet under the eave dripping...
How can I do next?
Many thanks
The model number of the furnace is 4txfh054cc3hhaa.
Seems like the condensate drain line is clogged. I tried to put some bleach and drain cleaner liquid into the
line, I didn't see the line outlet under the eave dripping...
How can I do next?
Many thanks
#4
12-15-22, 06:45 PM
Hello~ I just uncloged main & 2nd drain line, problem still exists. Hot air blows for 15 minutes, then cold air.
By the way, I have Honeywell HZ322 zone controller, do I set heat fan controlled by HVAC or Panel?
When I turn on the heater, blows cold air first, then hot air, then cold air again after 15 minutes. Error: 3 flashes,
pressure switch error.
Thanks!
By the way, I have Honeywell HZ322 zone controller, do I set heat fan controlled by HVAC or Panel?
When I turn on the heater, blows cold air first, then hot air, then cold air again after 15 minutes. Error: 3 flashes,
pressure switch error.
Thanks!
#5
12-15-22, 11:02 PM
Group Moderator
You left the model number for the air conditioner coil.
Take the burner door off..... the ID tag will be inside on the side wall near the burner.
I'm surprised you didn't see it working in there,
Take the burner door off..... the ID tag will be inside on the side wall near the burner.
I'm surprised you didn't see it working in there,
erictom
voted this post useful.
#6
12-24-22, 05:21 PM
Hi. thanks! The correct model number is tux1c100a9h41bb.
The Trane furnace problem exists, flashes 3 times, I tried new pressure switch sensor, no dice.
Could you give me more hints? Merry christmas !
The Trane furnace problem exists, flashes 3 times, I tried new pressure switch sensor, no dice.
Could you give me more hints? Merry christmas !
#7
01-12-23, 12:49 PM
Hi Sir. thanks! The correct model number is tux1c100a9h41bb.
The Trane furnace problem exists, flashes 3 times, I tried new pressure switch sensor, no dice.
Could you give me more hints?
Thanks!
The Trane furnace problem exists, flashes 3 times, I tried new pressure switch sensor, no dice.
Could you give me more hints?
Thanks!
