carrier airv driving me nuts!!!!! please help

[BM66040]

ok... i have a 08 holiday rambler savoy lx and it has this carrier air v high capacity ac unit that is remote controlled and controls the ac and furnace. Problem is it can be 90 degree's outside the ac comes on. runs good and cools great... then all the sudden the furnace fires up the ac goes off and the furnace will run nonstop to the point of damn near melt down.... any ideas what it could be... i had to remove the inside cover on the furnace and flip the switch to off as i got back to the camper from work and it was over a hundred degrees inside and furnace was running nonstop. the remote control was still set to cool so that isnt the problem.... and its happened like 4 times now. Im afraid this thing will melt itself down if i leave the camper for too long.

[Shadowcatche]

It's broke, and I would be fearful of major melt down too. Have you called Carrier or looked at the manual? They are as of 2009 no longer making RV AC
Carrier Transicold AirV

[wa8yxm]

ON my carrier V the furnace won't come on unless I request it (Select FURNACE MODE on the remote) Question: Does the FURNACE light on the controller display (Ceiling unit) come on?

Suggestion: Remove the Ceiling cover, Then remove the circuit board (CAREFULLY) and clean (Brush off with a non-metallic brush) Do a general cleaning while you are at it.

IF you have any IR Remotes, then there is another question "Are you pushing a button when this happens".

if so, it may be the two remotes share a code. (Furnace).

IF this does not fix.. then a new control board may be indicated.

YOU MIGHT also have a short in the Furnace wiring.. If this is the case the light for Furnace will NOT come on.

Temp fix: WIth the inside cover off, Look for two BLUE wires on the left (As you face the front of the RV) side of the A/C.. These will connect, usually with wire nuts, to another pair of wires.. Disconnect one of them (Does not matter which) and protect the ends of the wires. This should DISABLE the furnace completly.