Question about Fujitsu Heating & Cooling

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AR-JE6 unit is set to cool and high fan speed. Unit continues to cycle on and off. Louvers open then close and continues to cycle again.

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Disconnect power to it, interrupt power to the whole airconditioning system, then restore power. Hope this helps reset it.

Posted on May 01, 2015

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Posted on Jan 02, 2017

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How to replace coolig fan sending unit on a 2008 chevy uplander


Why ? Did you test ? Hook up a scan tool to see if the PCM/ECM - engine computer is reading coolant temp. ? Testing not guessing ? Do you even know how the system works .

The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the engine control module (ECM) to operate both fans together at low or high speeds. The cooling fans and fan relays receive battery positive voltage from the underhood fuse block.
During low speed operation, the ECM supplies the ground path for the low speed fan relay, which is Fan 1 Relay, through the low speed cooling fan relay control circuit. This energizes the low speed fan relay coil, closes the relay contacts, and supplies battery positive voltage from Fan 1 Fuse 29 through the cooling fan motor supply voltage circuit to the left cooling fan. The ground path for the left cooling fan is through the Series/Parallel relay, which is the Fan 2 Relay, and the right cooling fan. The result is a series circuit with both fans running at low speed.
During high speed operation the ECM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. The ECM supplies a ground path for the high speed fan relay, which is the Fan 3 Relay, and the Series/Parallel through the high speed cooling fan relay control circuit. This energizes the Series/Parallel relay coil, closes the relay contacts, and provides a ground path for the left cooling fan. At the same time the Fan 3 Relay coil is energized, the relay contacts close to provide battery positive voltage from Fan 2 Fuse 33 on the cooling fan motor supply voltage circuit to the right cooling fan. During high speed fan operation, both engine cooling fans have their own ground path. The result is a parallel circuit with both fans running at high speed.
When the request for fan activation is withdrawn, the fan may not turn OFF until the ignition switch is moved to the OFF position or the vehicle speed exceeds approximately 10 mph. This is to prevent a fan from cycling ON and OFF excessively at idle.

Feb 27, 2017 | 2008 Chevrolet Uplander

1 Answer

My rooftop a/c unit makes a compressor noise as soon I as plug in my travel trailer. It's a 2009 Outback Sydney edition 310 bhs with a dometic a/c unit I believe. basically with the thermometer switch to...


The system blows cold air when turned to on position but also makes that sound between cycles

NOTE THE ON / AUTO SWITCH BETWEEN GREEN,FAN AND YELLOW ,COOL TERMINALS ON THE THERMOSTAT,
THE FAN SWITCH NORMALLY CLOSED GOES TO LOW, HEAT SPEED, WHILE THE NORMALLY OPEN GOES TO THE HIGH SPEED, COLING SPEED.
BY TURNING FAN ON NOTHING BUT FAN SHOULD RUN..

SWITCHING THE BREAKER TO OFF PRECLUDES THE UNIT FROM DOING ANYTHING !

WHAT CAN IT DO WITH NO POWER!
I switch the breaker to the off position when not using the a/c in order to keep this cycle from occurring. A

Sep 16, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

Where can I get a manual for my Emerson Quiet Cool Room Air Conditioner? Not sure the model, but these #s were on outside of box: 10DC93 784040B OE21M N14421, is on a little sticker on the right...


Let see if I can help. The numbers don't come up so we'll just try your information.

Exhaust - should be closed when using for Air Conditioning
Energy savings turns the fan off with the compressor when set for Air Conditioning
Fan Only means just that (no Air Conditioning)

Fan speeds Quite same as low, Norm same as medium, Super same as High
Temp settings, what the thermostat senses before cycling compressor.

Jul 04, 2011 | Emerson Quiet Kool 10GV13 Air Conditioner

1 Answer

We bought a house with Fujitsu Air-conditioners we have no instruction manual on how to use the remote. Im trying to set it to go off after an hour or so. Model No.INDOOR UNIT is, AST12RSJCW Serial No is...


Switch on by pressing ON/OFF. Press mode button to cool position. for cool and keep required temp by clicking

Same procedure for Heat. For heat keep +29 and for cool 25 to 22 degree. Press fan for High, Med,Low. If you keep mode in Auto cool and the fan speed will be low and you can't change fan speed.


Please visit Fujitsu website for further details. Hope my msg is helpful?

Dec 09, 2010 | Fujitsu Heating & Cooling

1 Answer

Keeprite 2300 sx a/c w/ 2 speed fan never seems to go high speed .should I be able to hear it change and how do I dainose the problem ? and does this cause poor cooling ? the compressor unit line is cold...


I need more info. I can't seem to find your indoor unit. Is this a 2 stage cooling unit or just 2 speed fan? Please send the model number of your indoor unit.

Apr 11, 2017 | Heating & Cooling

2 Answers

Unit cools but has only low speed. is fan bad or control board


It's either the high speed winding on the motor or the button or switch. You need to check to see if you have voltage to the high speed when you push the high speed button. If you have volts it's the motor if not it's the button or switch.

Jul 04, 2010 | Heating & Cooling

1 Answer

Kenmore AC compressor on and off while outside unit fan running


If the out door fan keeps running and the compressor cycles off that would be the overload in the compressor.
What keeps the windings cool is the refrigerant back to the compressor.
For the overload to cycle it would have to be either not enough cooling back to the compressor or high amp draw, which could be the metering device (txv or orifice) or low on charge, or other things would be a bad capacitor, sometimes a bad start relay not staying open, when compressor gets up to speed or anything causing the compressor to draw high amps.
To check the refrigerant, he needs to check the superheat at the compressor it should be appoximately 12° to15°, and next time the compressor goes off if you shut the power off and feel the top of the compressor and if it's hot 130° or higher it's probably refrigerant.

Aug 14, 2009 | Heating & Cooling

2 Answers

Fan slows to about half speed when heat cycle kicks in


The heat fan speed is slower than the cooling speed. About 300 rpm less.
You may not have a problem.

May 20, 2009 | LG Heating & Cooling

1 Answer

Sharp Air Conditioner. Model # AF-S85NX. Does this A.C. fan cycle on & off in the auto cool mode or does remain on continuously. I need a small A.C. that cycles off and on with the compressor.


If you set you r AC to FAN mode the unit will not cool, it only runs in the indoor but the outdoor will off. If you set to AUTO the unit will cool but the indoor blower will automatically run slower when the room is cool or attain the room temp. setting. If you set it to COOL the fan speed is fix depending on your setting and it also operate in cool.

Apr 19, 2008 | Heating & Cooling

1 Answer

Ruud heat pump outside fan


You may be right in looking at the motor. It uses a different speed on heat than cool. The heat cycle uses low speed, usually red. Some manufactures use blue (medium). Cool uses black, high speed. If you are confident, switch the low speed wire with the high speed and see if this changes anything. If the fan motor isn't the problem, check the other setting (cool) if the overload trips, you may need to look into a new capacitor or compressor, if so, you can install a hard start kit. these are start boosters, and are inexpensice, sometimes they will give another year out of the comp. but I've put them on and they have lasted 5 years.

Mar 15, 2008 | Heating & Cooling

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