Question about Friedrich WallMaster WS07A10D Air Conditioner

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The ac wont come on unless you run the fan first then the ac will work why is that

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  • Donni Steen May 11, 2010

    Is this a room ac or a central ac?



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If the fan is not running when you put the unit in A/c mode the coils would freeze up

Posted on Jan 05, 2009


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I bought my 1999 oldsmobile cutlass new and now im having problems with my motor fans coming on,my ac don't work anymore but for the fans to come on I have to turn my ac switch on,if I switch to heat

If the fans work, (I'm guessing there are two of them) only when the A/C is on, then it means that the temperature sensor is damage. If possible, have a professional take a look at it. Both fans are OK,


Oct 10, 2014 | 1999 Oldsmobile Cutlass

1 Answer

Coolent fan wont come on unless you have the ac on what could be the problem.

Are you sure the fan is a problem?. it is only turned on when the engine reaches 225+ degree's F, so it seldom runs.

Oct 31, 2012 | Jeep Cars & Trucks

2 Answers

Engine cooling fan only works when ac or defrost is on

if engine at long stand still,the engine temperature will rise about 190 degrees the cooling fan suppose to automaticaly turn on when coolant temperature sensor get hot it cause its resistance decrease causing pcm to send power to coolant fan relays and cooling fans, when you turn on AC the cooling fans suppose to turn on to cool down AC CONDENSOR, IF NOT AC WONT WORK COOLING FAN COOLS DOWN REFRIGERANT SO IT CAN RECYCLE THROUGH THE SYSTEM AGAIN.your cooling is suppose to turn on when engine at a sit still if vechicle not moving as coolant temperature rises at a set point the cooling fans will turn on cool down engine.cooling fans dont turn on when you first cold stsrt vechicle unless you have AC SWITCH ON.if cooling fans dont turn on when vechicle at a long stand still or moving along slow traffic.if coolant temperature sensor been replaced and fuses and relays okay have dealership check see if pcm driver circuit working faulty pcm will cause cooling fans not to turn on.

Sep 27, 2012 | 1996 Buick Century

1 Answer

Radiator fan not working

you have a defective sensor or the fan is no good . your ac has a leak and there is not enough feron in the system

Jun 29, 2012 | 1995 Ford Escort

1 Answer

My air handler/fan keeps running after the ac unit turns off, and it wont quit unless i trun off the breaker. what can i do to fix the problem

Check your thermostat and see if the fan switch is in the "on" position instead of the "auto" position.

Jan 26, 2011 | Heating & Cooling

1 Answer


the temperature sending unit is not telling the fans to come on will need to get replaced or make sure wire is connected and grounded...the ac part lets you know the fans are working and not the problem need to find switch that turns fans on temp sending unit or another parts store can tell you if thay are good .....

Oct 03, 2010 | 1998 Ford Escort

1 Answer

My cooling fans do not come on unless the AC is on, and they don't run very fast

the fan speed is variable to save fuel, the fans don't run unless the engine gets really hot, about 230 F, that is well past the middle of the gauge if u havce one, so the fact they run with the AC on means the system is almost certainly functional as long as u are not showing an engine overheat, are U?

Jun 05, 2010 | 1997 Oldsmobile Aurora

1 Answer

Insufficient egr flow. Cooling fan does not run

Is your AC system charged and working? I believe the pcm will not activate the fan unless the AC system is operational.

Feb 22, 2010 | 1999 Saturn SL

1 Answer

I have changed everythimg

i had the same problem and the mechanic told me it was the fan motor. They replaced the motor and it stopped running hot unless I have to set in an idle mode. I turn on the AC and it stops running hot. The fan from the AC cools the motor. Hope this helps.

Feb 14, 2010 | 1997 Saturn SL

2 Answers

The radiator fan will not turn on unless the air conditioner is on

try to see the connection if still good..replace it if not...and see the fuse if still working

Oct 24, 2009 | 1993 Saturn SL2

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