furnace not ignited

[Xin Li]

I bought a 1992 29' Excella about one month ago. The furnace was working then. Now it only blows cold air. What do I need to check to fix so that it will blow hot air? I followed the instruction and try turn the manual gas valve on and off few time, no luck. Thanks in advance.

[GCinSC2]

Xin Li,

Can you post the make and model of the furnace?

Gary

[CBWELL]

That looks like a Suburban furnace, and you need to open the combustion side and check the sail switch. Do a search on the internet on "Suburban furnace" and you will see a You tube on how to check the sail switch, and replace if necessary. But first, check to see if you have propane, by lighting the stove. Alkso confirm that the shut off valve below the trailer is open.

[GCinSC2]

If CBWELL is correct and that is a Suburban after you get the model number go to https://myrvworks.com/manuals/ select FURNACE then SUBURBAN. Darrell has 13 PDF's for Suburban furnaces. Some are model specific. You might find an applicable manual to assist.

[Xin Li]

It is a suburban furnace.

[Xin Li]

Originally Posted by CBWELL

That looks like a Suburban furnace, and you need to open the combustion side and check the sail switch. Do a search on the internet on "Suburban furnace" and you will see a You tube on how to check the sail switch, and replace if necessary. But first, check to see if you have propane, by lighting the stove. Alkso confirm that the shut off valve below the trailer is open.

it still have propane.

[GCinSC2]

With the model number you can review information specific to your model in the link I provided.

When it tries to start do you hear any spark clicking sound?
Do you smell gas while it's trying to start?
Do you have an electrical test meter?
Gas stove burner works?

[Xin Li]

fixed. it was the contact to the igniter not properly connected.

[CBWELL]

That was an easy fix! Glad everything worked out.