suburban furnace won't start

[goofasap]

we have a suburban furnace that will not start up.
When we run the temp up for it to kick on...there is a click at the furnace....and nothing.....
The battery tested good...replaced the thermostat and ...no change..
I removed the furnace and had it bench tested at camp world and it worked fine. Re-installed it and it worked for a couple days, then reverted back to the original problem.
Now what to look for ?? converter ? how would I determine if the converter is the issue?

[goofasap]

chkd all fuses..their good...
I m a bit cofused as to exactly what the converter is supposed to operate and not,we are plugged into 50 amp shore power.
there was no manual for the furnace when we bought this rv. ..
will continue to trouble shoot. thanks for the reply

[darsben]

Is everything else in rig working? If so then it is probably not the converter.
First thing I would do is check the fuse by pulling it inspecting and replacing then check for 12 volt at the furnace. If you get 12 volt to furnace then bypass the thermostat with a jumper wire AT THE FURNACE. Check to be sure all connections are secure and clean.
If this does not work then get the model # of the furnace and someone here will have the troubleshooting guide or you may have one in the paperwork.