Author Topic: Trane XE80 Intermittant lighting problem  (Read 2371 times)

Offline mike99

  • VIP Member
  • Member Since: Jan 2012
  • Posts: 1
Trane XE80 Intermittant lighting problem
« on: January 28, 2012, 02:35:26 AM »
I am working on a trane XE80 with an intermittant lighting problem. This is what I am seeing.

1. When I first turn on the thermostat after it's been off for a while everything lights off fine and the furnace will run for a while (like 1 - 1.5 hours) before it turns off before hitting the thermostat temperature.

2. Furnace waits a couple minutes before it restarts the ignition sequence.

3. Ignition sequence starts, gas valve opens (can hear the hiss), but the hot surface ignitor is clearly not glowing this time around and there is no ignition. Repeats two more times then locks out.

4. Turning the thermostat off and on to reset the lockout SOMETIMES fixes the problem temporarily.

Any thoughts to the problem?

Offline jumptrout51

  • Technician
  • Member Since: Nov 2007
  • Posts: 1879
  • Country: us
    • Buy me a beer through paypal
Re: Trane XE80 Intermittant lighting problem
« Reply #1 on: January 28, 2012, 06:46:00 AM »
1. clean the flame sensor with steel wool.
2. when the re-light attempt fails check continuity through  all the rollout switches.(no continuity,no power to ignitor).
3.check ignitor for power,with a meter not visually.
4. check for a open vent stack limit switch.
5. if everything checks OK replace the ignitor.
Take a Kid fishing.

Offline tgoods

  • Technician
    Moderator
  • Member Since: Jul 2010
  • Posts: 1483
  • Country: us
    • Buy me a beer through paypal
Re: Trane XE80 Intermittant lighting problem
« Reply #2 on: January 28, 2012, 11:46:03 AM »
Since you're hearing the gas valve open, the control thinks the ignitor is glowing.  Check for 120vac to the ignitor.  I bet you have a cracked solder on the control board. Jiggle the plug where the ignitor connects to the board.  Resolder it or replace the board.
« Last Edit: January 28, 2012, 11:48:01 AM by tgoods »

Offline handsmcgee

  • Technician
  • Member Since: Jan 2012
  • Posts: 12
  • Country: us
Re: Trane XE80 Intermittant lighting problem
« Reply #3 on: January 29, 2012, 11:38:41 AM »
Check to see if you have power to the HSI, also some systems are ground sensitive. Make sure you have proper polarity and a good ground. If you have power to the ignitor ,if so, replace the HSI. No power to HSI, check board connection at jack plug or terminals. Check board at HSI terminals and see if power there, no power means board problem. Improper grounding of some systems will cause intermittent board failures and intermittent lighting. Hope this helps

 

Trane XE80 Runs for 4 seconds and stops.

Started by R22helopilot

Replies: 4
Views: 2864
Last post December 11, 2011, 08:00:03 PM
by JWWebster
Maytag Airconditioner problem

Started by smckeown

Replies: 8
Views: 7335
Last post July 25, 2007, 05:33:44 PM
by AJ
A/C problem

Started by tmh

Replies: 6
Views: 4700
Last post June 26, 2009, 07:20:50 PM
by jumptrout51
Trane HVAC Service call pricing XL1400

Started by maypo52

Replies: 5
Views: 4041
Last post August 18, 2009, 01:45:42 PM
by jumptrout51
trane HVAC No Heat xe1100

Started by Topfoxhole

Replies: 21
Views: 9043
Last post December 11, 2009, 05:34:47 PM
by Topfoxhole
AC Blower wiring Help Help Help Plz Trane XE60

Started by Gilmo

Replies: 2
Views: 3962
Last post May 31, 2010, 08:47:33 PM
by Icehouse