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Trane XR90 - 3 Red Lights

Trane XR90 - 3 Red Lights

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Old 11-15-2011, 07:38 PM   #31
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Trane XR90 - 3 Red Lights

Quote:
Originally Posted by Tom Scott View Post
He's confussed. Tested it with a new pressure switch and he gets the same thing. Hes calling his boss now.
should of asked for the older more experienced guy.......

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Old 11-15-2011, 07:43 PM   #32
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Trane XR90 - 3 Red Lights

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Originally Posted by beenthere View Post
Clogged/restricted pressure hose. Restricted exhaust or combustion air intake pipe. Corrosion build up on hose pressure ports. Restricted drain line. Crack in a pressure hose. Slow spinning inducer. Cracked heat exchanger. loose restricter plate on the back of the inducer.

The tech should use a manometer and see how much pressure the switch is seeing.
He has a fancy meter hooked up to the burner box now where the hose to the switch usually runs - I thinks hes testing the pressure.
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Old 11-15-2011, 07:49 PM   #33
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Trane XR90 - 3 Red Lights

meter shows negative pressure out of the burner box.
Last edited by Tom Scott; 11-15-2011 at 10:13 PM.
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Old 11-15-2011, 07:50 PM   #34
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Trane XR90 - 3 Red Lights

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He said the meter shows negative pressure out of the burner box.

But he admits hes confussed and frustrated.

Now he is taking off the intake pipe that is above the burner box....
ta-da!!!!!
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Old 11-15-2011, 07:56 PM   #35
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Trane XR90 - 3 Red Lights

It runs with the burner box open and the pressure swtich hoses hooked up properly.

Looking like an intake problem maybe, he thinks there might be a blockage.
Last edited by Tom Scott; 11-15-2011 at 10:13 PM.
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Old 11-15-2011, 07:59 PM   #36
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Trane XR90 - 3 Red Lights

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Originally Posted by harleyrider View Post
should of asked for the older more experienced guy.......
I asked for an expierenced guy and told them I would call a different comapny if they did not know ho to service this model.
Last edited by Tom Scott; 11-15-2011 at 10:15 PM.
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Old 11-15-2011, 08:00 PM   #37
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Trane XR90 - 3 Red Lights

post #22
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Old 11-15-2011, 08:01 PM   #38
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Trane XR90 - 3 Red Lights

Is it making a gurgling sound when its burning?
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Old 11-15-2011, 08:02 PM   #39
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Trane XR90 - 3 Red Lights

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Is it making a gurgling sound when its burning?
not that I hear
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Old 11-15-2011, 08:06 PM   #40
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Trane XR90 - 3 Red Lights

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I asked for an expierenced guy, this is what they sent me
the good thing is he is getting valuable experence...........on your dime
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Old 11-15-2011, 08:09 PM   #41
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Trane XR90 - 3 Red Lights

we tallked earlier about the trap......have him clean it while he is there.....
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Old 11-15-2011, 08:13 PM   #42
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Trane XR90 - 3 Red Lights

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the good thing is he is getting valuable experence...........on your dime
lol - thanks that makes me feel so much better.
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Old 11-15-2011, 09:38 PM   #43
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Trane XR90 - 3 Red Lights

Well Tom, whats the verdict?
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Old 11-15-2011, 09:44 PM   #44
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Trane XR90 - 3 Red Lights

Update

He left and I am right back where I started.

He wants to come back tomorrow after he talks to the manufacturer and get their advice.

Another guy came over and they both checked everything they thought might be the cause but found nothing but maybe something is in the intake pipe.

He wants to come back tomorrow and cut the intake pipe to look into it to see if its blocked.

The other guy read thru the install manual and said there is too many bends in the pipe that make the overall pipe length 10 feet too long based on the install manual and maybe that’s the problem.

They also said the inducer motor is at .5 something and the book said it should be .7
Right now they left it running with the burner box open just a crack and the hoses hooked up to the pressure switch because it runs that way with no error.

So that’s it for now.
Last edited by Tom Scott; 11-16-2011 at 01:15 AM.
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Old 11-15-2011, 09:46 PM   #45
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Trane XR90 - 3 Red Lights

tom send me a private message............i want to give you my cell so you can call me

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