Help no heat

06 Pace Arrow, worked good till this trip. Back unit quit first,front would work on cool. last night when tried to turn on heat pump or furnace the heat side would not work on front or back. while fooling with thermostat the back unit started working but the heat side still won't work. Has a RV Comfort.zc thermostat. Have plenty of gas. Now both cooling units are working, but no furnaces or heat pump. RV Products AC & Heat pump units I think Coleman. Thanks for the help!!

rgatijnet1 wrote:
My roof top Dometic AC/heat pump will still put out heat down to 37 degrees. I have heard that some will not work below 40 and some will work down to 32 degrees. I am sure that even two identical AC/heat pumps may not work at the same low temperature.
For your furnace to work, it must have 12 volts available and you must have propane available to the heater. If it is controlled by the same wall thermostat that controls your AC units, the thermostat must have 12 volts available to it.
You need to check all of your 12 volt fuses to insure that they are not blown.

If his stat or stats lite up and work for AC then he has 12V to the stat so how could the fuse be blowen? will not run electric heat or gas heat and yet both run AC ok.Either for some hard to beleive situation he has two different problems or his stat,s or stat are failing.If I was there I could give a better opinion.One thing to ad.I dont know if theres a lock out on a heat pump when a person trys to use it in real cold weather?

My roof top Dometic AC/heat pump will still put out heat down to 37 degrees. I have heard that some will not work below 40 and some will work down to 32 degrees. I am sure that even two identical AC/heat pumps may not work at the same low temperature.
For your furnace to work, it must have 12 volts available and you must have propane available to the heater. If it is controlled by the same wall thermostat that controls your AC units, the thermostat must have 12 volts available to it.
You need to check all of your 12 volt fuses to insure that they are not blown.

A little more information would be helpful.

Year, make, model...stuff like that.

Is there any brand name on your control panel?

Did it ever work or is this a newer unit?

Usually you won't ever get heat from your air conditioner unless you had heat strips added to them. Usually you will only get heat when you are set to the furnace mode.
They don't want you to be heating and cooling at the same time.

We are using an electric heater this morning as abc40kids mentioned (with 40 kids running around he probably doesn't need a heater much anyways) so I second his suggestion of a heater. Mine is the $20 variety...actually $5 at a yard sale.

abc40kids wrote:
After I checked the basics like the breaker, and made sure I had gas my wife would have already had me on my way to Walmart or Lowes for a couple electric heaters. Once I got those going then it would be back to fixing. Someone will pick this up in a minute and have some good answers.

Having gas(lpg) wont help his heat pump side of things.I agree go get two electric heaters.U can buy them for 25.00 a piece and then trace the problem.Sounds like bad thermostats to me

After I checked the basics like the breaker, and made sure I had gas my wife would have already had me on my way to Walmart or Lowes for a couple electric heaters. Once I got those going then it would be back to fixing. Someone will pick this up in a minute and have some good answers.