Question about Dometic Rooftop RV Air Conditioner

1 Answer

When i turn on the ac the transformer fuse will blow

My ac will make my transformer blow a fuse but when I turn on the heat the fuse wont blow

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Dometic Master
  • 12,917 Answers

If you are blowing a fuse just when you turn on the ac then the anomaly has to be with a circuit that only operates when AC is turned on. How about the compressor clutch which is electrically operated? If hot wires going to that unit lose insulation and get grounded, then the moment you turn on the Ac you will have a short and the fuse will blow. Or maybe the clutch has developed an internal short.

Posted on Nov 24, 2013

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Inside fan does not blow on auto or fan only.outside ac will work if i push in the relay switch


So you have no 24 volts. Either float switch is tripped, transformer or fuse bad, or your tstat is bad. Turn power off to indoor unit. Open tstat and wire red green and yellow together. Turn power back on. Let me know...

Jul 04, 2017 | Heating & Cooling

1 Answer

Fan, heat and air blowing all the time wont shut off comes on as soon as I turn car on


It sound like the heat and AC dash switch control unit has developed a short and effectively fused some contacts together.
The danger is that electrical shorts have the possibility of starting a fire.
The electrical circuit can be disconnected by removing the heater and AC fuses from the fuse box.

Oct 11, 2016 | 2000 Land Rover Range Rover

1 Answer

I keep blowing the control transformer when I turn on the A/C. The system works fine when I turn on the heater. When I try to turn on A/c nothing turns on before control transformer blows.Jim...


First thing I would recommend is to go to the closest auto parts store and get an inline car fuse folder and some 5 amp fuses. Connect this to wire that comes off the transformer and goes to R. That way you will only blow fuses instead of transformers.
I will assume this system isn't a heat pump since it runs fine in heat mode. If it is, please let me know. Also, I will assume there is no circuit board outside, but let me know if there's one.

Go out to the condenser and remove the Y wire from the contactor, then try the system in cool mode. If the fuse blows, you have a short in the low voltage wire between the air handler and condenser and will need to find it, cut it out, then re-splice. If the fuse doesn't blow, you will likely need a new contactor.

Mar 23, 2010 | Ruud UBHC Air Conditioner

2 Answers

Behringer super x pro.the fuse keeps blowing on the ac inlet(t200 MA).a replacement unit works fine in the system.


When a fuse keeps blowing suspect an overload in either the power supply section or main amp part.
Look for burnt or damaged parts first.
The suspects in the power section are: transformer, diodes, rectifier, voltage stablizer, regulator.
In the Amp Section anything on the heat sink.

Jan 12, 2010 | Audio Players & Recorders

1 Answer

My dad as a Trane / Heat pump. When he turn on the emergy heat it blows the fuse in the furance. which I think the fuse is tied to the transformer. As long as he does not use the emergy heat it works ok.


What size is the fuse that is blowing? Does it go to the transformer 3-5 amp fuse? If it is a 30-60 amp fuse then you have a line voltage short and need to call a serviceman.

Jan 02, 2010 | Heating & Cooling

1 Answer

AC/ Heat is working defrost not working


sounds like a short some where, start by replacing fuse, leave a/c off, turn heat on, does it blow fuse? if yes then bad blower motor. if heat rruns then turn on a/c if that blows fuse then you might have bad a/c compressor . start there. hope this helps.

Oct 20, 2009 | 2006 Hyundai Sonata

3 Answers

I have a goodman furnace and ac unit the fan and heat work but every time i turn the ac on it blows the low voltage fuse ive replaced all low voltage wires to outside unit and thermostat i also replaced...


Look at the contactor on the condensing unit, remove the low voltage wires to the contactor and turn on the system. If the low voltage fuse doesn't blow, replace the contactor.

Jun 24, 2009 | Goodman CLQ36AR49 Air Conditioner

1 Answer

The heating and ac wont work


I seem to remember posts regarding the failure of dashboard switch assemblies in some Chrysler-made products. The blower may also be separately fused; check your owner's manual for fuse locations. 

Dec 25, 2008 | 1994 Chrysler Concorde

Not finding what you are looking for?
Dometic Rooftop RV Air Conditioner Logo

83 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dometic Heating & Cooling Experts

Bill Long

Level 3 Expert

587 Answers

Donni Steen

Level 3 Expert

659 Answers

mike cooper

Level 3 Expert

884 Answers

Are you a Dometic Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...