Trane Voyager combustion motors

[chillrdude]

I have seen several threads on here discussing these combustion motors failing where the neutral shorts to ground and they run all the time.

I have a buddy who has 7 Voyagers that are a little less than 3 years old and he has lost 3 out of the 7. Naturally he is a little bummed, are you guys seeing a bunch of these failures?

Is there a service bulletin or anything out on these, or were all of his units made on Monday

[bowhunter21]

I had a bunch a year or two ago but none recently, I think they had a bad batch of motors. Have not seen any service bulletins on them.

[bobby m]

Call trane they have a bulletin on this, i did one a couple of weeks ago and they exchanged the part free but no labor allowance.

[emcoasthvacr]

The Voyager gaspacks I service & maintain for customers haven't had any problems -- they were installed 2nd quarter of 07.

[jayguy]

The failed combustion motor issue.

Service Bulletin: RT-SVB34A-EN

Serial number codes: 317XXXXXX through 525XXXXXX.

YC* 150, 151, 180, 181, 210, 211, 240, 241, 300, and 301 gas fired
rooftop packaged equipment.

Talk to your local Trane parts distributor.

good luck.

[chillrdude]

Thanks for the info guys, I will talk to my parts guy Monday and see if I can get a little relief.

[gwoner]

I have had several units that upon inspection the hsi is inop and the comb blower runs all the time trying to light off. 115v to icm and out to hsi. replace the hsi and unit runs great. get into the habit of replacing hsi when amp draw gets to 2.3 amps or lower. never heard of s.b. before. thanks

[timebuilder]

I have had several units that upon inspection the hsi is inop and the comb blower runs all the time trying to light off. 115v to icm and out to hsi. replace the hsi and unit runs great. get into the habit of replacing hsi when amp draw gets to 2.3 amps or lower. never heard of s.b. before. thanks

I don't recall the actual numbers from last winter (this year, it goes into the laptop I keep in the truck) but if you compare the resistance values of a new, good used, and non-operating HSI you will find a typical range of resistances for the failed units. So, if you have the voltage going to the HSI, and the failure profile resistance, you get the kit out of the box you have in the truck, and you're halfway finished.

And, if you have never replaced an HSI (new guys) handle them firmly and gently. If you drop them, even a little, they will shatter. Voice of expereince there.

I haven't had the motor failure yet, but I work with a lot of older units. Maybe this is the winter I start to see the motor failures on the new-design Voyagers.

[adammemin]

A new HSI from Trane is approx 46-48 ohms. Tranes spec on resistanve value for a good operating ignitor is from 50-80 ohms. I like to replace them at about the 100ohm mark. I have replaced a ton of CBMS on the voyager units. If they fall under the bulletin Trane will pay for the part but the customer has the labor.

A good practice when doing a PM is to ohm the ignitor and record the value somewhere. That way next year when you check again if the resistance is sky high it gives you a sign that the unit might be cycling on limit or you have something going on.

[allstar08]

50-80 ohms and 3.5 amps. A 1.5 amp draw on a ignitor will give you ignition failure from time to time.

[fac 213]

I have had several CBM with the same problem, just running and no heat. Trane exchanged them under warranty. In fact they said hold on to the CBM
they did no want it back. Today I had another CBM just running, but this unit on a call for heat worked. The unit is two years old. I called trane and will change the CBM for FREE. In the past I Had to wait a couple of days, now they must stock them . If you had to buy one they are not cheap, as long as they keep exchanging them I don't care.
On another note I attended a Trane Voyager class, and asked the Trane Rep
why these motors are failing, and if he could explain the wiring of the inducer
He told me he had no knowledge of the failures
Hope this info helps

[fac 213]

I have had several CBM with the same problem, just running and no heat. Trane exchanged them under warranty. In fact they said hold on to the CBM
they did no want it back. Today I had another CBM just running, but this unit on a call for heat worked. The unit is two years old. I called trane and will change the CBM for FREE. In the past I Had to wait a couple of days, now they must stock them . If you had to buy one they are not cheap, as long as they keep exchanging them I don't care.
On another note I attended a Trane Voyager class, and asked the Trane Rep
why these motors are failing, and if he could explain the wiring of the inducer
He told me he had no knowledge of the failures
Hope this info helps

[fac 213]

Sorry about the double post