Community Forums

TN Bill · 04-23-2012, 08:40 AM

I have a 2004 Winnebago Brave and have a problem with the front A/C. The A/C is a Coleman Mach and thermostat is Coleman also.
When I try to run either the A/C or heat pump the compresser will come on but the fan will not. If I turn off the A/C or heat pump and put the thermostat in the fan run position the fan runs like it should.
The thermostat also controls the gas furnace but it will work as it should.
Anyone with any ideas?
Thanks,

jlfbatonrg · 04-23-2012, 10:33 AM

Our coach has the RVP/Coleman ACs and thermostat. I know from experience that the controller sends check signals to the various devices. If it does not receive an acknowledgement it produces an error, and the thermostat will lock up with that error code. Just shutting it off then on will not fix the problem. If your thermostat is the same as ours, you have to place the thermostat in the Off positon, remove the cover, then remove the glass fuse on the control board. Wait at least 5 minutes before replacing the fuse, and turning the thermostat back on. I was given this information by a Coleman service tech. Hope it works for you.

Jim

RV Wizard · 04-24-2012, 03:03 AM

verify you have good clean connections at both ends of T'stat cable. If a reset does not correct the issue, you could have a bad T'stat. Goof luck and keep us posted.

TN Bill · 05-27-2012, 08:14 AM

A follow up on my problem. I tried the solution suggested by jlfbatonrg and it worked. Removed the fuse and left it out for about a hour (I forgot about it for a while) when I put it back in the A/C worked like it should. RV Products had said I needed a new T'stat. Thanks for the help