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Dometic air fan hangs up

\015 When a person works with it awhile, it will kick on\015

Answers :

Sounds like there may be a short in the t-stat or in the on/off switch. I bet he switch is bad. You can take it apart and do an ohms test on the switches to determine which one may be bad.

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Dometic air fan hangs up


Sounds like there may be a short in the t-stat or in the on/off switch. I bet he switch is bad. You can take it apart and do an ohms test on the switches to determine which one may be bad. ... Air Conditioners

I just had a new Dometic roof air conditioner installed it works good for about 10 min. the the fan stops and makes a humming noise .After about 10 min the air will work ok again. The repair tech saya the fan moter is drawing about four time the amps lt should. He is going chang the fan capacitor or fan motor. Is this a problem with Dometic AC units?


I have over 35 years in the A/C business and am ASC certified. The motor will normally draw 4 to 6 times it FLA (Full Load Amps) or RLA (Regular Load Amps) when first starting up or is seized. This is called LRA (Locked Rotor Amps). These specs can b ... Dometic Rooftop RV Air Conditioner

I have a dometic dual-therm rooftop RV air with analog thermostat. When I set the thermostat to heat, the unit will hum but the fan does not turn and no air is coming thru vents in the floor. Then unit will blow cold air (hums and fan turns) when thermostat is on cool, but it won't turn off unless I shut it off at the breaker. What could be wrong?


... Dometic Rooftop RV Air Conditioner

Changing out fan motor on a dometic air unit - Dometic Rooftop RV Air Conditioner


... Dometic Rooftop RV Air Conditioner

I have a Dometic rooftop Air conditioner in my RV When I turn it to low medium or high the fan run the same speed and when I turn it to AC it will run for about 5 min then the fan will shut off but the compressor keeps running I turn it off for a min or so and everythings comes back on. Turn it to the fan only side and the fan will run for 5 min then shut off a min later it comes back on then back off and on in fan only side.


Bad fan motor I suspect The windings are bad causing the motor to over heat sending the motor into thermal overload. would suggest the replacement of motor. Good Luck on repairs\015\012\015\012Dave ... Dometic Rooftop RV Air Conditioner

I have a Dometic 15,000 btu, ducted air conditioner in my 30 ft fifth wheel. It seems like the unit has never cooled very efficiently. Dealer has checked out. I noticed yesterday, outside air over 100 degrees, that the air conditioner would put out good flow of cool air, but once in a while compressor would stop running even though not close to thermo setting. Fan would continue running. Any suggestions?


Not sure what the pressure sensor should ohm at but i would suspect a faulty sensor if everything else checks out. Its very common for these sensors to exhibit issues when they get hot. Also you may have a filter in the system that may be restricte ... Dometic Rooftop RV Air Conditioner

Dometic rv aircon quick cool air compressor and fan work fine high and low, but if I just want to use just fan ,turn on fan switch no fan, could this have a relay on control bd . weird


My rv just has on our auto with fan it will cycle with the compressor in auto will run all the time in on as long as you are in cooling ... Dometic Rooftop RV Air Conditioner

I have a Dometic 579 Series Brisk Air AC. The model Number is 57915.531. When I turn the fan on, nothing happens. If I reach up and turn the wheel blower the fan will start up and everything works. I replaced the fan motor and put on a new capacitor part # 3100248.412 was supplied. The fan still will not start on it's own. I still need to turn the wheel blower to get it started. Help!


My sheet shows part # 3100248.420 as fan run capacitor.You may have an updated number. Check voltage outputs labeled on it are same as on old one, and double check wiring is correct, to and from capacitor. Be careful not to mistake compressor start c ... Dometic Rooftop RV Air Conditioner

I have a dometic heat pump a/c basement park model unit. The fan is not working. The compressor runs, but no air inside or out. I have power into the run cap. but not on the brown wire to the fan from the run cap. I also have no power to the fan high or low off of the relay board. Where do I go next to isolate?


... Dometic Air Conditioners

I have a new keystone hideout with dometic single zone lcd thermostat when i put it to furnace the ac fan comes on at same time but when furnace reaches temp. ac fan just keeps blowing cool air?


Obviously wired wrong. I will assume it is still under warranty? If you only recently picked unit up, I would also question the quality of the PDI performed. ( Pre Delivery Inspection) Have you tried to contact dealer you purchased it from? ... Dometic Rooftop RV Air Conditioner

I have a Dometic Duo Therm rv Roof Air Conditioner Model# 59516.531.The fan is blowing and the compressor is kicking on but it is not blowing out cold air. Someone said it must be out of freon. Why would there be no freon? Can a technician add freon to this unit or do I have to change out the whole thing? please help!


These are a closed system.(meaning that there is no fill valves for recharging) But a heating & cooling technician can solder them on and re-charge the system. Only problem there is to get an estimate up front, and compare it to buying a new roof ... Dometic Rooftop RV Air Conditioner

It looks like the fan motor has burned out on my Dometic-Aire RV air conditioner. It is a Westinghouse


Get mod number and info on motor and call \012www.marcone.com for more info and ordering.\012Once you have the info you may be able to find item at your local\012A ... Dometic Rooftop RV Air Conditioner

My original hunter ceiling fan model 22272 seems to be turning clockwise as in the winter mode. We have had these three fans in my great grandmothers home for 31 years and they all are hanging and working. Now that I just inherited the home I noticed the living room is not blowing air downward. There is not a directional switch so I'm stumped. Thank you.


Usually direction is changed by pulling one of the chains, or there will be a small black switch where/near chains enter in to housing area. ... Air Conditioners

Fan runs but dosnt blow cold air - Dometic Rooftop RV Air Conditioner


You need to check the condenser fan and compressor to see if they are running. Check any fuses or breakers for them. If the breakers/fuses are good then check the contactor. If that's ok the check the capacitor(s) for them. Let me know what you find. ... Dometic Rooftop RV Air Conditioner

My air handler runs but does not cut out, once it reaches the temperature set in the thermostat the external unite kicks off but the fan in the air handler does not stop running.Looking for a relay or switch that's hanging up but not sure. Please help.


If you have old thermostat and it worked when you switched to scheduler, try reinstalling it to see if problem persists. depending how it was wired, shut off sensor may disable furnance controller (not air handler). odd thing is handler runs nonstop ... Ruud UBHC Air Conditioner

I have a Dometic Brisk air AC. Was working fine and all of a sudden the unitsounded like it went to half power. It will restart and sounds labored. It did trip the circuit breaker at the power source once. Reset the breaker and it continues to run labored, both on fan only and cool & fan.


There are a couple of scenarios that can cause this.1) Low voltage in the park. If the performance doesn't increase / doesn't sound normal this evening when electric demand drops off, see #2. If it does improve, you might try moving yo ... Dometic Rooftop RV Air Conditioner

Just bought a used 1987 Real-Lite truck camper. The roof air unit is Dometic as well as the LP/AC refrigerator. When turned to "cool" the air conditioner really draws down, dims the lights, and eventually blows the home AC breakers. It works fine on blower fan only but as soon as I engage the "cool" settings, big brown out. The fridge doesn't work at all. I'm in the Nashville area. Suggestions


To start with, if it's plugged in to a 15 amp breaker, and extension cord, the compressor starting up may just be enough to trip the breaker. It will draw close to 15 amps on start-up of compressor, and if there is a light extension cord used to plug ... Dometic Rooftop RV Air Conditioner

Fan blades on dometic brisk air needs to be replaced


Roof top cover will have to come off, to get accesss to it. Not too hard to do, but may want to spray shaft in area of blade with WD_40 or similar to remove rust , and make on & off easier. Here's a link to dealer locator for Dometic. Any dealer ... Dometic Rooftop RV Air Conditioner

Dometic air conditioner 57915.751 no compressor just fan


... Dometic Rooftop RV Air Conditioner

My Duo-therm Brisk-Air by Dometic rv ac wont cool.(The fan runs )


Usually just listening closely will give you a rough idea where to look for problem. When you have the fan on and switch to cool, (with temperature turned down low obviously) do you hear any type of "moaning" sounds from AC unit, or see lights in RV ... Dometic Rooftop RV Air Conditioner

My fan motor won't turn on my dometic air conditioner


If the run capacitor does not fix it bad motor. ... Dometic Rooftop RV Air Conditioner

I have a camper with a Dometic rooftop air conditioner. The Model No. appears to be 3310700.012. The thermostat it the type that fully shuts off the unit (compressor and fan) when the set temperature is reached. The problem I am having is that the "dead band" (time between unit shutting off and coming back on) is too long, allowing the camper to become uncomfortably warm. A. Can the band width be adjusted to cause the unit to cycle sooner. Or, better still... B. Can the thermostat switch be bypa


No both the options A and B which you gave cannot be done.yes option B is possible in some form.but in this case fan will not shut down and this will burn the fan motor and even make the fan wirings short/.so option B is also not advisable.but the pr ... Dometic Rooftop RV Air Conditioner

Wont work 15000 dometic air conditioner compresser wont start fan runs fine


Well the 1st thing is see if your compressor is hot, warm, cold to the touch after yourve tried to run it for 30 min to 1hr.If its cold proceed to check the voltage at terminals R and C. Careful they might be hot electrically. If its cold ... Dometic Rooftop RV Air Conditioner

AC won't start. Fan runs - Dometic Rooftop RV Air Conditioner


Depending on make & model, usually if you hear a "click" at control box at ceiling when switched to cool, that's a good indication of a faulty relay, capacitor , or maybe even compressor. Not something to play with if not experienced, especially ... Dometic Rooftop RV Air Conditioner

Dometic Duo Therm, 15000 BTU: Thermostat works, fan runs, but no cool air. Any ideas?


Our domrtic air and furance will not come on at all. No clicks when we try the theranstat Dometic told us to unplug the thermonstat but do not know where it is located. we have an anolog thermonstat . Also any other thing that might help me to troub ... Dometic Rooftop RV Air Conditioner

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