Question about Dometic Rooftop RV Air Conditioner

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Mod.59516.603 fan will run in "on" pos. switch to

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There is a fix for this, when u purchased new board u have to bypass a wire for a/c hook up only.it should be on the instructions that came with board if not, call dometic and ask for tech help they are very good about helping and can send you the diagram thru an e mail.

Posted on Apr 05, 2011

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WHRE IS THE FAN FUSEE IN A 1.3 TOYOTA TAZZ


you changed the thermo switch and relays and it didnt fix it
did you test the fan motor itself

the fuse box cover should have a fuse layout diagram
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1 Answer

Cooling fan switch


It is not necessary to replace the thermo-switch when replacing the radiator. The switch can be replaced separately.
The fan switch is located under the sound box of the air cleaner. It is 2 pin connector. Pull the connector out by pressing the lock which attached to it and short the two pins with a thin auto wire temporarily. Switch on the ignition. The fan will become on. Drive it and see if runs hot.
If the temp reads OK, replace the fan switch. If the problem persists, diagnose the other issues which are concerned with the overheating problems.

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1 Answer

Cooling fan not functioning


Some how you have a short where the two systems run off same circut which this would be AC fan. The cooling fan is wired up throught a thermo switch Wich comes on when it reaches a certion heat degree.Myself i like to elemanate proplems so i wire up cooling fans direct.When key is on you here cooling fan.Therno switches will burn car motors out when they go tt80500

Nov 25, 2011 | 1987 Honda Prelude

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I installed an RTH2300 this winter to replace an old mercury thermostat. It worked fine for the heating season. I turned it to Cool for the first time today and my AC and furnace blower will not turn...


Maybe turn selector switch to off.see if every thing shuts off.if yes. turn FAN selector switch from (auto) to (on) mode.does the outside unit come on or does just the furnace blower only run ? the inside fan should be the ONLY thing on.if not, reverse the (G) & (Y) wires inside the new thermo.

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1 Answer

Overheating water comeing out of bottol


REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.CHECK MECHANICAL COOLING FAN.SHOULD HAVE RESISTANCE WHEN TURN WITH HAND.IF FREEWHEELS FAN CLUTCH NEED TO BE REPLACED.CHECK TO MAKE SURE AUXILIARY ELECTRIC COOLING FAN RUNNING HOT WIRE COOLING FAN IF FAN RUNS.YOU HAVE FAULTY THERMO SWITCH LOCATED AT THE BOTTOM OF RADIATOR ON THE LEFT HAND SIDE ON 4 CYLINDER ENGINE FOR V6 ENGINE THERMO SWITCH LOCATED ON THE LOWER RADIATOR HOSE ON THE RIGHT HAND SIDE OF THE ENGINE COMPARTMENT. CHECK FOR BLOWN COOLANT FAN FUSE OR FAULTY RELAY.IF THE AUXILIARY ELECTRIC FAN DONT RUN WHEN HOT WIRED THE ELECTRIC FAN FAULTY.

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1 Answer

Thermo set "heat" and "Auto


Check the fan relay. These relays are used to cut the fan on and off when the thermostat is set in the air conditioning or heating mode or when you move the thermostat to the "Fan On" position. The low voltage usually the green thermostat wire is wired to terminal #1. The low voltage common wire to terminal #3. One line voltage wire is attached to terminal #4. The high speed blower wire usually black is attached to terminal #2. When the thermostat calls for air conditioning or "Fan On" the 24 volt coil is energized, the terminals 4 and 2 close. This causes the fan to come on in high speed. When your home cools down and the thermostat cuts the air conditioner off, the low voltage coil terminals 1 & 3 are denergized, and the fan goes off. Sometimes these little relays stick which causes the fan to run all the time or will not make good contact, which causes the fan to not run in the "Fan On" or air conditioning mode.

Nov 16, 2010 | Weather King 10AJA6001AH Air Conditioner

1 Answer

Cooling fan not working


This is a thermo fan and is temperature controlled it will only start up when the vehicle gets hot. Take the vehicle for a drive and when the thermostat opens up and the temp guage on your dash gets up half way that is when the fan should start aprox.. get out of your car and leave running and check to see if its working..

If not check all wires going to plug at the fan,
although the aircon one should come on when the aircon is switched on. If you have a bit of electrical wire handy you could make 2 lengths atach to the neg and pos of battery disconnect the fan plug and attach the other ends of the wire it doesn't matter about polarity as it will just run backwards, if the fan runs then there will be a problem with the sensor or wires see an auto elec,, ******Keep hands clear of fan when ever key is in the ignition as it can start at any time******

Jun 21, 2010 | 2002 Jeep Grand Cherokee

1 Answer

Air conditioner is blowing hot air, it was installed 1995 , the top switch option is CONT FAN AUTO and bottom switch is HEAT OFF COOL and on the right is a dial from 10-30


First of all, what do you mean by hot air? DO YOU REALLY MEAN ROOM TEMERATURE AIR THAT JUST DOES NOT FEEL COLD? If this is a heat pump system, we need to look at it differently than if it is a gas or oil fired heater. Next, the thermostat control that says "cont.fan auto"----- this actually means FAN switch to be in AUTOMATIC RUN or CONTINUOUS RUN mode. Leave it in auto mode and forget that it is there; this little switch confuses a lot of people. The dial that says 10-30 is centegrade temperature that translates to 50-87 degrees farenheit. In order to get air conditioned (cold) air, you must have thermostat fan switch on auto, the heat/off/cool switch on cool, and the 10-30 dial on 20 or 21 (68-70 f.) assuming the room temp is at least 72 degrees f. or higher. If you still do not get cold air, then there is a problem with the cooling circulation system which can be tripped circuit breaker to outside compressor unit, loss of freon refrigerant, bad control such as relay or reversing valve in outside unit, stuck heat sequencers or heat element relay that are giving you heat at the same time giving cold if it is a heatpump system. You will need a skilled service person to determine these problems. Goodluck, Macgivor

Nov 09, 2009 | Cell Phones

3 Answers

The radiator cooling fan is not working. Upon


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1 Answer

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change the thermostat for a more user friendly one

Aug 06, 2009 | Heating & Cooling

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