Carrier unit in camper wont come on ..dead..fuses ok..?????

SOURCE: coleman rooftop a/c unit is fried? i plugged my

If there Air Conditioner is wall thermostat controlled, then take the front cover off the thermostat and check the fuse. If the fuse is ok, then take the inside cover of the AC down and pull down the control box that is mounted in the intake section of the AC. It is held on with two wing nuts. Remove the cover and observe the relays and the incoming AC wiring. Make sure that none of this is burnt. If all looks ok, turn power on and turn the thermostat to High Cool and check if you can hear the relay click inside the control unit. If not, then check to see if the thermostat has 12V going to it. Start there and see how that goes.

If it is controlled by the ceiling mount t-stat and selector switch. Remove the inner shroud and check the incoming AC wires for OK. If they look ok then check the selector switch and the thermostat.

The Refer has protection from this. Depending on which refer you have (Dometic or Norcold), the process is a tad different. If it is a dometic, go to the outside of the coach and remove the access panel on the rear of the refer. Remove the black cover from the control board (lower left side) and check to make sure that the 120V fuse is good (You will need an ohmmeter to check). If it is fine the check to see if you have power going into the 12V block at the very bottom, rear of the refer. If there is 12V there, then check the plug that the Refer is plugged into for 120V. If none, check the GFCI circuit in either the bathroom of the kitchen. If tripped you will have no power to fridge. Start there and then we will move forward.

Basic same checks for a norcold, board is harder to remove as you have remove wires. Mark and remember where they go.

Hope this helps,

Jeff

SOURCE: AC unit on Viking popup is loud and vibrating

take the cover off the front of unit and look down inside at the blower wheel see if there is something in it

SOURCE: a duo therm thermostat (p/n 3105058) was removed

a. Remove the cover of the thermostat.
b. Connect the RED wire from the air conditioner
to the “RC” terminal on the thermostat.
c. Connect the “YELLOW” wire from the air conditioner
to the “Y” terminal on the thermostat.
d. Connect the “BLUE” wire from the air conditioner
to the “H” terminal on the thermostat.
e. Connect the “ORANGE” wire from the air conditioner
to the “G” terminal on the thermostat.
f. Push the thermostat wires into hole in wall and
fill excess hole with insulation.
g. Mount thermostat base to the wall with screws
provided.
h. Check all thermostat wires on base to ensure
they are completely clear of the bimetal coil of
the thermostat. Adjust if necessary.
i. Replace thermostat cover.
If nothing operates on the air conditioner, remove the
return air grille assembly and verify the red, orange, yellow
and blue wires are properly connected (red-to-red,
orange-to-orange, etc.).
Next, disconnect the red wires and check for 12 volt
DC between the red wire from roof section and the orange
or blue wire from roof section. If no voltage received,
refer to Section F2. If voltage is received, the
problem lies with the thermostat or thermostat wires.
Next, disconnect all 4 wires (red, orange, yellow and
blue) from the thermostat. With the thermostat set on
COOL mode, FAN mode set on AUTO and HIGH, and
temperature selector set lower than the room temperature. Check for continuity between terminal RC (red wire)
and terminal G (orange wire); and RC (red wire) and
terminal H (blue wire). If continuity is achieved on each,
proceed with the next step.
Set fan switch to LOW. Continuity should NOT be present
between terminal RC and Terminal H, but present between
the other terminals (Y & G) and terminal RC.
If all of the previous checks are good, the thermostat is
good, do not replace it. If any one of the previous checks
are not correct, replace the thermostat.

SOURCE: help, Brand New A/C unit drippin inside camper

they do that its normal operation, you will get varying amount depending on your location and humidity. If it is not balanced or installed right it drips in the camper.

Testimonial: "Thanks. Is there anything at all I can do? This is a brand new unit, one month old. The old unit didn't do this"

Mike Butler

• 6674 Answers
• Posted on Sep 01, 2009

SOURCE: Pop up camper-leaking from ac unit when it rains.

Personally I would undo the 4 bolts that hold the upper unit (outside) to lower unit (inside) , then with circuit breaker off & confirmed that no power to it, take cover off for hydro connection, and unhook those wires, and unclip harness from connector to upper unit, to allow for removal of the lower & upper unit, then remove both upper & lower and cover the hole for now until you decide on whether or not your going to fix the roof supports in that area. I'd cut a 16" square piece of painted plywood or fairly stiff aluminum, add a good thick bead of sealant (not silicone, it doesn't last long) to the area where you see the gasket was seated & screw the cover right to the roof for a temporary fix. Make sure you attach screws close to where gasket would be under your cover, (about 1"-1-1/2" in from edge of 16" cover) so that the holes will be covered later when AC unit put back on, by the gasket of the AC unit. Make sure you put maretts back on hydro wires & add some electrical tape over them as well to keep maretts on while traveling for now. Don't know how handy you are, but fixing that over the winter may not be as bad as you think. If you need advice later, get back to me/us.