I need a blower motor for mo.#4312k729 12 volt 1.5 amp18 watt coleman tent trailer heater. Where do I get one.

Coleman may be contacted toll-free at 1-800-835-3278. Replacement parts are available from them.

hope this helps http://www.managemylife.com/images/25432/original/Coleman_eb-12.jpg?1355759130

check for proper voltage to motor first . if proper voltage at motor check and see if motor has a capacitor .

It wont work. Electricity does not work like that. you can't double the power just by doubling the watts or amps. there is a lot and lots of other things involved.
I would rewire you camper so that half is run be one generator and the other half by the other generator... SO lights and fridge on one and plugs and heater on the other maybe...

go to the Coleman web page and down load a user manual for that model
or simply talk to a Coleman tech representative to get the info

Check for a faulty inline fuse or circuit breaker at harness attached at front of trailer. Follow positive wire back to trailer.

One is available for download from http://www.popupportal.com/manuals/Coleman/Coleman_1982.pdf

http://www.colemantrailers.com/download-owners-manuals

did you try the limit reset button? It is red and may be close to the blower.If your pilot is on and burners don't come on this may be it

if the cable is broken on the bottom of the trailer jest cable splice cable if it is broke in side the suport i have 3 of them