|
|
 |
|
|
Thread Tools | Search this Thread | Display Modes |
10-30-2010, 11:11 AM
|
#1 |
|
Newbie
Join Date: Oct 2010
Posts: 1
|
Trane XR90 keeps blowing fuse
I have a Trane XR90 furnace. The IFC board went out 2 winters ago. It was replaced along with the ignitor electrode. It has worked fine until 2 days ago. I turned my heat on 3 days ago and everything worked fine again. The next day it blew the 5 amp fuse on the IFC board. I replaced the fuse today and it worked for about 20 minutes. Then it blew the fuse again. I've checked the wiring to the thermostat and the IFC board. Does anyone have any input on what this problem could be? Much appreciated.
|
|
|
|
11-01-2010, 05:56 AM
|
#2 |
|
An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 19,069
|
Trane XR90 keeps blowing fuse
Disconnect all of the wires from the furnace that come from the thermostat. Then use a jumper from R to W on the IFC board, and leave the heat run. If it doesn't blow the fuse in 30 minutes. then something is wrong with either the wires, or the thermostat, if it has more then 2 wires to it..
|
|
|
| The Following User Says Thank You to beenthere For This Useful Post: | McTreez (11-01-2010) |
|
| Tags |
| furnace repair, fuse blowing, trane xr90 |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Trane XR90, LED flashes 2 times for error | James35 | HVAC | 48 | 12-16-2012 12:49 PM |
| Trane XR90 Pressure Switch Error | kenk | HVAC | 30 | 10-10-2012 04:24 PM |
| Hot water heater blowing fuse | Cattman | Plumbing | 15 | 01-20-2012 06:41 PM |
| Trane XR90 | Mike2401 | HVAC | 32 | 12-22-2009 02:18 PM |
| Blowing fuse | kenneth floyd | General Discussion | 4 | 08-04-2009 01:27 PM |
Linear Mode
