Question about Dometic Rooftop RV Air Conditioner

1 Answer

Fan works on all speed, and low cool is working but does not change to medium or High

All speeds work on the fan and the low speed works on the air condition and gets cold but when you can speed to medium and high cool speed does not change. We have duo therm unit.

Posted by on

  • Anonymous Mar 24, 2014

    fan speed low and have problem with cool

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I need a wiring diagraham for a duo-therm mod# 54812-136

Posted on Jun 22, 2009

Ad

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.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Fan will only blow on low when heat is on


your fan most likely is wired for low speed for heat which is common. this should be determined when furnace is set up properly. motors that aren't modulating motors and are multispeed motors typically have low medium and high taps that come off the motor and go to the corresponding relay on the board. low and medium speeds are used for heat and high and medium speeds are used for cooling. but only one speed for heat and one speed for cooling many times medium never gets used. im not familiar with klimaire is this a mini split system and not a regular air handler. cause speed control should be adjustable from the remote. if its a split but if not reaching desired speed due to a malfunction in the units could cause it to run low speed just to maintain the temperature exiting the indoor unit.

Oct 21, 2013 | Klimaire Heating & Cooling

1 Answer

2003 ford escape fans do not run in till the a/c is turned on.


There are four relays for the cooling fans .low speed control , medium speed , high speed fan control relay 2 , high speed fan control relay 1, there is also a engine cooling fan resistor .The engine coolant temp. sensor would most likely cause the check engine light to be on . There is also a dual pressure switch , this is for the A/C . The cooling fans will be turned on at 213 degress low speed , high speed at 226 degress . If you had factory scan tool or a professional type you could view coolant temp data in pcm , you could also energize the relays to see if the system is operating normally . There are other repair shops beside dealers

Mar 28, 2017 | 2003 Ford Escape

1 Answer

Heater fan only works on "high speed"


All cars are designed with a blower fan motor that pushes air through the ventilation system. This air is processed by a series of vents to direct the air to various positions. Example: heater, air conditioner and defrost modes. Most blower motors are power by a basic electrical circuit that utilizes a multi resistor or a solid-state resistor to control different fan speed modes (low, medium low, medium and high). If the resistor malfunctions it may lose one or more of the lower fan speed settings.
google_protectAndRun("ads_core.google_render_ad", google_handleError, google_render_ad);

Mar 02, 2010 | 1999 Buick Century

1 Answer

Hampton Bay Windward II Purchased 2002 The fan has lost high speed. Low speed and medium speed work fine. When the fan is turned on to high speed it runs at medium speed. When switched from high to medium...


Most fans have a small rectangular multi-tap capacitor connected to the speed control in the fan. It is likely that this has gone partially bad. The capacitance values are printed on it. Lighting stores and big box hardware stores generally carry replacements.

Feb 23, 2010 | Dryers

1 Answer

A/C Control Dail only works or High. Replaced a/c compressor.


The A/C dial is High Medium and Low, that only changes the fan speed, it doesn't changed the compressor at all, with all three speeds.
If the fan is not running the compressor won't run very long.
Probably an open winding, in the medium speed of the motor, the switch is bad or medium and low speed not hooked up.

Aug 22, 2009 | Heating & Cooling

2 Answers

Fan will not run on high. Compressor runs fine but the fan will not run on high. Works fine on low and med.


It's the mode switch contactors for the high setting just overview the wiring of the high cool or high fan contactors if it's not there check all leads for the high fan or high cool circuitry.

Aug 01, 2009 | Coleman Mach III Air Conditioner

1 Answer

Window Unit - Fan does not come on in high & medium cool modes, works fine in low cool, fan also works


fan motor speed control on the motor itself is out.. Replacement is only option. Good Luck

Dave

Jul 08, 2009 | Heating & Cooling

1 Answer

I HOPE I AM USING THIS PROPERLY......MY ? IS IN MY


The indoor blower motor is sometimes a 3 speed motor.The heat usually works on low or medium speed.But the a/c is usually on high speed,this gives greater air flow across the evaporator coil to give you better cooling,also better air flow at ducts.These speeds are usually wired through a relay in the inside unit (air handler).They can be changed.If you go to thermostat and put the fan switch to "on" the blower should operate on "high" speed.With the fan switch set to "auto"the operation will determine the fan speed.Hope this helps. Gregg

Jun 04, 2009 | Heating & Cooling

1 Answer

Only works at high speed


the barector resistance would have worn out or would have broken in the rheostat so change that resistance then you would see ur fan working in low medium and high speeds

Jun 24, 2008 | Accutek AOJ-1601 Stand (Pedestal) Fan

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

563 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...