Ok, say I want to order a new ignitor/flame sensor for my Suburban furnace

[wacnstac]

I have a 31' 1979 Internation TT. Want to order a spare one of these to have just in case. I see nowhere on the furnace where it gives a model number. How in the heck do I order the right part. The front plate of the furnace just says Suburban. I'm pretty sure it's a NT-30 but when I call to order the part they tell me they need to know whether it's a NT-30SP or NT-30K. How to find out?

[lewster]

You are probably looking at the back of the furnace. The data plate with the model # and serial # is in the front. If you don't have an exterior access door, then you have to remove the unit to get to the #'s.

[wacnstac]

I can pretty much see all sides of the furnace in place and all I see is Suburban but no plate. I can see the back where the squirrel wheel is by opening the panel there, obviously I can see the front where the ignitor is. I can see a warning label on the other side by the sink, but no plate. Would Airstream be able to tell me what is installed in there by my VIN?

[Inland RV Center, In]

Originally Posted by wacnstac

I have a 31' 1979 Internation TT. Want to order a spare one of these to have just in case. I see nowhere on the furnace where it gives a model number. How in the heck do I order the right part. The front plate of the furnace just says Suburban. I'm pretty sure it's a NT-30 but when I call to order the part they tell me they need to know whether it's a NT-30SP or NT-30K. How to find out?

79 trailers did not have electronic ignition furnaces.

But a PO could have installed one.

The NT-30 "DOES NOT" have electronic ignition.

The NT-30SP does.

If the furnace does not have a pilot light, then again, it will be a NT-30SP.

Andy

[wacnstac]

Thanks Andy. The furnace does NOT have a pilot light. It IS electric ignition. According to the suburban manual which is a general manual that covers a lot of furnaces for that era there was a NT-30SP and a NT-30K. Would the NT-30K be the non-electronic ignition model?

[Inland RV Center, In]

Originally Posted by wacnstac

Thanks Andy. The furnace does NOT have a pilot light. It IS electric ignition. According to the suburban manual which is a general manual that covers a lot of furnaces for that era there was a NT-30SP and a NT-30K. Would the NT-30K be the non-electronic ignition model?

The NT-30K is electronic ignition.

However. that model is twice as wide as it is tall.

The NT-30SP is taller than wide.

Andy

[wacnstac]

My unit is almost square when looking at it from the front access door, just a little taller than it is wide.

[Inland RV Center, In]

Originally Posted by wacnstac

My unit is almost square when looking at it from the front access door, just a little taller than it is wide.

Then your furnace should be a NT-30SP.

Andy

[wacnstac]

Ok where does one go about buying one? I got one that is supposedly a replacement from my local RV dealer but the prongs that go inside look a bit different and the things the wires mount to are tab fittings as opposed to screw fittings.

[Inland RV Center, In]

Sounds like a new style ignitor.

I would suggest that it's all that's available.

Andy

[Paul and Sue]

I have a NT24MA furnace in my trailer (1979) I am having great difficulty locating a new gas valve. The furnace has electronic ignition. The numbers on the valve:

6201G0025D
7825B
P15
Harper-Wyman

Here are some pictures. Perhaps Andy has one or knows of a good retrofit.