Question about Heating & Cooling

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We have a 1997 Coleman popup camper. The air is just a little cool and it keeps leaking on the inside. I called a repair place and was told it was most likely low in freon and that it could not be added due to it being a sealed unit. Does anyone know if this is correct or how to fix the problem. The AC is a roof top unit

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  • Master
  • 22,095 Answers

The drain is blocked and needs a clean out ,look for a drain hole with a pipe to the outside .as for the gas recharge then yes it can be filled by a specialist and not a chancer ,you have to cut a pipe on the motor and solder a connection on the end not a problem for a experianced person

Posted on Jul 25, 2013

  • jennifer Jul 25, 2013

    Thanks. I have called two camper stores. Tom Johnson was one of them that said if the freon was gone then the whole unit would need to be replaced.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

22yooper
  • 828 Answers

SOURCE: Recharge My AC Unit

The system needs to be accessed through what is call a tap valve. After a tap valve is in place a high vacuum should be pulled on the system down to 500 microns to remove air and non condensible gases along with any moisture from the system. Then the charge should be weight into the system according to the name plate with the proper type of refrigerant, generally Refrigerant 22. An alternate method is to charge the system by superheat of the gas returning to the compressor. Ambient temperature determines how high or low the superheat should be.

Posted on Jun 20, 2008

motor1258
  • 6674 Answers

SOURCE: ROOF TOP AC UNIT ON COLEMAN POP-UP LEAKS

Does water drip out of unit on the roof while running ? If you look under the unit on the roof, you should see one or two little drains sticking down., that may be plugged up. Piece of wire or something and poke in the holes on the sides of those drains to make sure they're clear. Usually there is a plastic/nylon pan on roof unit to catch that moisture, and drain it off. Could be overflow because of the plugged drains, or I have seen the odd one crack but not too much recently, mostly back 5 yrs ago or so they had a run of them.

Posted on Aug 14, 2008

  • 127 Answers

SOURCE: Coleman roof top rv air no cool,warm compressor

No Cooling.
Turn the selector switch to “Cool” and the
thermostat to a low temperature (below room temperature).
The fan runs OK, but the unit does not cool. When the unit
housing is removed, we observe that the compressor does not
run; however, it periodically hums for 15 to 30 seconds.

Possible Causes- Check all of this before buying a new unit, that may not be the solution.

“The voltage could be low – ”
a) Check the voltage between #1 on the
overload switch and the “R” terminal of the
compressor while it is not humming. This
voltage must be 115 volts domestic USA
models or 240 volts export/overseas models.
No less than minus 10% is allowable.
b) Check the voltage from “C” or “R” of the
compressor while it is humming (trying to
start). The latter reading will probably be
lower, but it still must be 103.5 volts
minimum domestic USA or 216 volts
minimum export/overseas models.
If the first reading is above 103.5V domestic USA and
the second is under 103.5V domestic USA, there is
too much voltage drop in the lines - a situation which
must be corrected for the air conditioner to perform
safely and satisfactorily.
2. “A capacitor could be shorted, weak or open.”
Turn the power off.
Caution – There is always a chance that a capacitor is
holding a residual charge, so before touching a
terminal, discharge the capacitor as explained earlier
in this booklet.
Remove capacitors, visually examine them and test
them per instructions given in earlier section on
capacitor testing (See page 9).
If the capacitors test OK, replace them and carefully
reconnect the wires. Be sure the wires are connected
to the right terminals.
3. “Start relay contacts could be open – ” if so equipped.
Turn off all power, then check for continuity with
ohm meter between terminals 1 & 2.
4. “Compressor start winding could be open or
grounded.”
Check compressor windings per instructions. See the
section on the compressors (See page 8).
5. “Compressor could be mechanically stuck.”
This very rarely occurs and when it does, it is usually
after a lengthy shutdown. This should be considered
only after all the above possible causes have been
positively eliminated. To free a stuck compressor, use
your hermetic analyzer according to the
manufacturers instructions.

Posted on Jun 29, 2009

motor1258
  • 6674 Answers

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.

Posted on Sep 01, 2009

motor1258
  • 6674 Answers

SOURCE: was given a roof top ac for a popup camper need help

Make and model of unit should be on base of roof assy, please reply with that so we can be sure we have right wiring info for you. Although they are pretty common, let's be sure.

Posted on Aug 02, 2010

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1 Answer

I need owners manual for 1995 coleman popup camper.I is a colman seneca.I bought it used and there was no manual with it.


If your looking for Coleman owner manuals or brochures call Beckley's! We have the last copies of these brochures straight from the factory. Limited quantities available so call 800-598-4048!
Pop Up Owners Manuals
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1 Answer

We have a 1997 Coleman pop up camper. We are having issues with AC. It blows out some cold air but not a lot and it keeps leaking water on the inside of the camper. I have called a repair man they said...


If you have some cooling, but not enough, then chances are that the system is low on freon. The only reason a system would need freon is because the freon leaked out. If the leak is not sealed before recharging with freon, the freon will eventually leak out again. Leak repairs are expensive so if it's a small leak it may be more cost effective to recharge the system every two or three years. Freon recharging is not a do-it-yourself job. Only people certified to handle refrigerant (freon) are allowed to recharge an air conditioning system. OR 1. Extremely dirty air filter restricting the airflow through the inside unit. 2. Extremely dirty (clogged) cooling coil restricting airflow AND IF IT IS LEAKING If you do not see ice build-up on the larger copper tubing (covered with a black, sponge insulation) when you run your system, then you probably have a clogged drain line. A clogged drain line is usually caused by algae build-up inside the drain line. And yes, there is something you can do to prevent this condition. Algae is a living plant and will grow in your drain line until it clogs the line. The air handler provides a cool, damp environment for development of molds and mildew and if left untreated these growths can spread into your ductwork. If only moderate to light buildup is present then there are chemical disinfectants specifically designed for use in air handlers that will kill the existing mold and mildew and control new growth. These disinfectants are safe and very effective and are applied by simply spraying into the filter intake and by placing "Algae Strips" directly in the drain pan. If the coil has mold or mildew present then it also should be treated. Make sure that the face of the cooling or evaporator coil is clean so that air can pass through freely. HOPE THIS HELPS :)

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1 Answer

I am looking at a 94 Coleman pop up camper. The


They are a closed system, so obviously it had/has a leak. You can get some AC guys that will retrofit it to allow for adding freon, but if it has a leak anyway, which will probably cost you a couple of hundred bucks to find out you have a leak that may not be evident until after you've already bought it, then leaks out again, and your back at square one. Depending on what size BTU's you want, you can pay anywhere from $500-$1000 + plus inside controls etc, if needed.

Jul 10, 2009 | Heating & Cooling

1 Answer

COLEMAN MACH 3 MOUNTING ON INSIDE OF CAMPER NOT ALIGNING WITH MY


Did you purchase a new Ducted Ceiling Unit with the Upper Unit air conditioner? If you are replacing an older mach 3, the ducted ceiling packs are not compatible and you will need to purchase the ceiling pack as well. The ducted ceiling pack part number for the 8333 series Mach III AC is below.

1. Heat/Cool Air Distribution Box - 8330B735
2. Cool only ADB - 8330A733
3. Wall Thermostat (if needed) - 7330G3351

Hope this helps.

Jul 01, 2009 | Coleman Heating & Cooling

1 Answer

When I fill the patable water tank it leaks on the inside of the trailer


If it leaks while filling it is likely any of the several fittings or it may be the 3 port check valve attached to the incomming water line. These are routinely installed backward. The idea is that when hooked to an external water supply the water goes only to the faucet and when using the tank, water can only go from the tank to the faucet. You cannot be hooked to external water and use the tank.

Any cracks in the tank should be obvious.

Use teflon plumbers tape on all screw fittings or will leak for sure. Hose clamps are also a necessity.

May 30, 2009 | Coleman Campers Grill

1 Answer

I was giving a 87 Coleman popup camper...but needs a little care and parts along with manual...do you know where I can get this information...


Hello,

I hope this help's you:

Website: www.popupportal.com
Top of the screen : Owner's Manuals, click on it and scroll down to Coleman, click on and download your file.

Have a nice "Summer"

Apr 27, 2008 | Coleman Campfire Grill

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