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 > Rear AC Problems, need your help

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sljkansas

Miami Co. Kansas

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Joined: 09/28/2005

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Posted: 08/11/08 06:58pm Link  |  Quote  |  Print  |  Notify Moderator

We have owned our new Bighorn 3670RL for about 2 weeks now, and have been having problems with the rear 15K unit.

The dealer is coming out Friday to look at it, but since this is my first 15K unit with a wall mounted thermostat control, I have a few questions.

Here's the problems

Water dripping inside. Thermostat set to AC, auto (or on either way it drips), fan HI, and about 75 degrees. Drain hole is clean looking from outside unit. Also when raining NO drips from unit, so seal should be ok.

They say this unit has a freeze sensor, that may have come loose.
ok that may be one problem.

Now when I turn the thermostat to the off position, fan to auto and slide the temp all the way up, the unit will still cycle on and off. I finally shut the breaker off to keep the unit from running.

The front AC a 13k unit was installed at dealer, is working great.

now the questions

What would cause the the unit to cycle off/on with thermostat set to off? Is it the AC unit or the thermostat that could be causing the problem?


Steve & Linda
Son married (1 DIL, 3 granddaughters 1 grandson)
Daughter in College
Miami CO. Kansas
2004 F350 CC dually 8ft bed 6.0 PSD
2009 Bighorn 3670RL
B&W under bed hitch with 18k companion hitch


Lost One

Salt Lake

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Posted: 08/11/08 09:53pm Link  |  Quote  |  Print  |  Notify Moderator

1. Is the unit level or pitched so the drain hole is on the downhill side?

2. How long does the unit run before it starts dripping?

3. If yes on #1 and under 15 minutes on #2 turn the unit to off but fan to on and let it stop dripping (give it awhile to evap off some of the condensate), then turn the A/C back on and try the fan on medium speed and see if it does it.

Let us know what happens.


03 Dodge Ram 2500 Cummins HO QC LB HD 4X4 3.73 6 speed manual
1992 NU-WA Hitchhiker Premier 32' with slide
Tekonsha P3 brake controller
Q5 Fifth wheel hitch


sljkansas

Miami Co. Kansas

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Posted: 08/12/08 06:30am Link  |  Quote  |  Print  |  Notify Moderator

Whe the unit is running I get good stream of water running off the corner. So pitch is ok.

Why medium fan speed?

Also read last part of post, there is something else wrong somewhere.

wa8yxm

Wherever I happen to park

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Posted: 08/12/08 09:53am Link  |  Quote  |  Print  |  Notify Moderator

There are basically 3 (or 4 depending on how you count) things that cause dripping

1: Rig not leveled properly.. I find that if I'm down just a touch in front my level sensor is happy but I take a shower in the back of the MH

2: DIRT! and/or debris This is the 3/4 issue as 2A is in the water tray INSIDE the AC, remove the cover and inspect, #2b is on the evaporator coils allowing the water to drip off in such a way as it misses the water tray

3: Rare, leak in the drip tray


Nothin adds excitment like something that is none of your business
John is Near Kenwood TS-2000 housed in a 2005 Damon Intruder 377


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