Trying to get an age on a Coleman 3012 RV furnace.

SOURCE: Manual for a Coleman Forced Air Furnace manual

If you haven't already tried Coleman customer support, try Google. You can find owner's manuals for all kinds of things. good luck, John

SOURCE: Fix for coleman rv furnace

Check all limit switches and check power to gas control

SOURCE: replacing filter on coleman furnace L8T

The bottom panel should either pop out of lift up. They can get a little stuck so you may need to use a screwdriver or similar tool. As long we''re talking about these units, see this link:

http://www.recall-warnings.com/cpsc-content-01-01523.html

Safety first!

SOURCE: water leaking from coil pan that is cracked down center

maybe you can fill the pan a little with some type of sealent, like resin, that might seal the crack pan..

SOURCE: r.v. coleman mack furnace

Try calling a local appliance repair or HVAC/refrigeration contractor.

A mechanical refrigeration contractor would have a better chance of having or being able to get replacement parts faster. But you have to get someone with an HVAC knowledge to look at it.

While the R.V. mechanics may be good at simple repairs or general knowledge, you need a trained eye to look at this issue here.


I would suggest to have a tech diagnose the problem and quote to repair. If the quote sounds reasonable, then go for it (your paying for expertise and a warranty). If not, then you at least have an idea of where the problem lies and what steps needs to take place to try to get it fixed.