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Fan wont change from low to high on GE heater/ac unit

GE model AZ38H15DABM1 heats and cools great but the fan doesn't blow as hard as it used to. To get the air distributed. I Checked the DIP switches but still nothing.

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  • Contributor
  • 69 Answers

Clean blower and coils , check out fan motor and fan capacitor .

Posted on Nov 30, 2014

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  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 54 Answers

SOURCE: Problem with GE Zoneline 5200 model

Heat pumps have saftey circuits that prevent liquid flooding of the compressor. Inadequate airflow across the evaporator in cooling can trip this circuit. Have your package unit serviced with particular attention to cleaning the evaporator coil and be sure your filters are clean and changed frequently in the summer months. Hope this helps GL!

Posted on Jun 08, 2008

james3751
  • 614 Answers

SOURCE: This is a heating and

You have a bad board or bad switch. I would say board. You can have service tech check this out. There is only so far you can go without knowledge of Controls ad electricity. Russ

Posted on Jul 22, 2009

keith91gmc
  • 52 Answers

SOURCE: My low cool air works, but when I put it on high

most likely the control switch is bad or burnt wire terminal

Posted on Aug 29, 2009

heatman101
  • 43501 Answers

SOURCE: The heat and fan are

Hi,

Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

AirConditioner Trouble - Review the Possibilities

heatman101

Posted on Mar 20, 2011

  • 1 Answer

SOURCE: i have a ''GE"heat &

Look at the wires that go to the compressor and make sure they are not burned off. Inspect the capacitor tops for swelling and loose or burnt wiring. Also check the connections coming from the controls. May have a wiring problem or even a bad compressor. How old is the unit?

Posted on May 17, 2011

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Tip

A Great Tip For Saving Money


While everyone usually remembers to change their AC and Heater filters, no one thinks about cleaning the heating or cooling outdoor coil. If you have an outdoor unit for heating or cooling, those coils need to be clean too!!

The principle of an HVAC unit is to remove heat or cold from your home to make sure you have a comfortable temperature inside.

If you have a gas furnace, your good to go in the winter. Make sure you change your filter every month and you should be able to keep your home at an nice temperature for you and your family. BUT, if you have an air conditioning unit hooked up to cool your house in the spring and summer, you need to do a little maintenance every spring to make sure you get the most out of your unit and save money. The same principle works for a heat pump, so i'll break it down for each unit.

1. An air conditioning unit that has a gas heater works just like it sounds. In the winter, your thermostat will tell the heater to turn on. You will have your burner running until the fan switch in the heat exchanger gets to the right temperature to turn the fan on. This is so you don't have cold air circulating through the house. Cooling on the other hand works a little different. If your thermostat calls for cooling, your fan will turn on right away and your condensing unit outside will turn on. What you AC is doing is removing heat inside the house and putting it somewhere else. That;s where your condensing unit comes in. The heat you removed inside the house is transferred outside where it is compressed and cooled through the use of the outdoor fan.

Now, imagine if this outdoor unit has dirty coil. You are no longer able to remove the heat from the house because it's not able to be removed because of a dirty coil. This means a huge loss in cooling capacity, higher running amperage on the compressor, and your electric bill being alot larger than it needs to be. I'll have the solution after I address the heat pump.

2. Now, the heat pump. It is basically an air conditioning unit that can reverse. In the summer, the outdoor unit will blow hot because of the heat it removed in the house. In the winter, the outdoor unit will be blowing cold because it is using the heat outdoors to add heat into your house. While this sounds weird, it's engineering at it's best. In the winter, heat is able to be removed from very low temperatures and your able to transfer heat into the house because you have a compressor in your unit. It does what it says. It takes a low pressure-low temperature refrigerant and compresses it into a high pressure-high temperature refrigerant.

Now, getting to the coils of both units. You need to clean the outdoor coil on both units every spring to make sure you have a clean coil. In the long run, this will allow the unit to expell the heat gained from the house and in the long run will add life to your compressor and save you money.

On the heat pump, you'll also need to clean the coil every fall. This is because if you don't, you could have a problem with freezing your outdoor coil. If you can't remove the heat from indoors, you will slowly turn your outdoor coil into an icemaker!!

So, based on what you have, turn the power off to your outdoor unit. Spray very good with a degreaser such as simple green and let it sit for about a half an hour. Then, grab your hose and wash out the coil. You'll be amazed what comes out. Let it sit for a coup0le hours to dry out, then turn the unit on.

This will not only extend the life of your compressor, it will also save you money in the long run!!

on May 11, 2010 | Heating & Cooling

1 Answer

Fan speed wont change speeds on heat or cold cycles


Sounds like the Blower Motor Resistor. The range from 10 to 75 dollars depending on what kind of vehicle. Pretty easy to change.
Blower Motor Resistor Repair Heater Fan Speed Control Chevy Blazer GMC...

Nov 09, 2014 | Cars & Trucks

1 Answer

Fan won't blow on ac, but works on furnace


The fans heat speed is low speed and the cool speed is high speed. High speed is controlled by the fan relay normally open switch, the low speed is controlled by the temperature delay or time delay.
see diagram

18418928-wil0gxehsfojcry3vcxysbjd-5-0.png

Jun 05, 2013 | Coleman Home Electric Furnace Eb15b/Eb15d

1 Answer

Location of ac high pressure cutout switch on a 97 Plymouth voyager. Could it be a different problem? Had to replaced the PCM and a couple sensors because of a short in the wiring cluster. Now the ac...


HIGH PRESSURE CUTOFF SWITCH LOCATED ON AC COMPRESSOR DISCHARGE LINE LEADING TO THE CONDENSOR.THE HIGH PRESSURE CUTOFF SWITCH WILL CUT OFF THE AC COMPRESSOR IF SYSTEM PRESSURE RISES TO HIGH CAUSED BY RESTRICTION IN THE REFRIGERANT CIRCUIT OR OVERHEATED CONDENSOR.MAKE SURE COOLING FAN IS RUNNING WHEN THE AC SWITCH IS ON.THE COOLING FAN KEEP CONDENSOR COOL, IF COOLING FAN DONT RUN.YOUR AC WILL STOP BLOWING COLD AIR.HAVE THE REFRIGERANT SYSTEM CHECK OUT.MAKE SURE YOUR LOW SIDE PRESSURE IS 10 - 37 PSI. THE HIGH SIDE PRESSURE SHOULD BE 112 - 210 PSI. CHECK THE AC COMPRESSOR CLUTCH FUSE AND RELAY.

Jul 29, 2011 | Plymouth Voyager Cars & Trucks

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

Model #LG LWHD1500ER The fan to cool no longer runs on the low speed. It will just humm. On "energy saving mode" the unit does not always turn on to cool. On the "cool mode" when the fan is on high it...


www.appliancefactoryparts.com/content/.../118816.pdf - United States
Above is your service and repair manual, with this you will be able to troubleshoot and repair your Aircon.
I suspect, your thermostat may have a faulty sensor?
factoidz.com/troubleshooting-your-air-conditioning-thermostat/

http://www.inspectapedia.com/heat/Thermostats.htm

Below is a DIY AC, troubleshooting how to. http://www.repairclinic.com/Air-Conditioner-Troubleshooting

Jun 26, 2010 | LG LWHD1500ER Wall/Window Air Conditioner

1 Answer

My heater fan wont turn on in auto mode but will in manual


Well you have a good transformer and the fuse is not blown. So I would look for the most obvious thing which is the relay. Why the relay? Well most units do double duty as air conditioner and heater. AC and heat require different fan speeds. The relay shifts the fan from low to high for ac. The fan runs on low for heat. In rare instances it could be a bad wall thermostat but most times not. You know the fan is good because you can get it to come on manually.

Some Repair Photos

Dec 24, 2009 | Heating & Cooling

1 Answer

A/C blows weak/low volume of air through vents


I f it is fan that has more then one speed if you run it all the time,it may
not be on high sample : low fan speed runs all the time
med fan speed for heat
high fan speed is usually for air conditioning so if everything is good then it maybe the relay.

May 02, 2009 | Carrier Heating & Cooling

1 Answer

Ice build up out side hitting fan


pop out drain plug heat up pan with heat gun to melt ice

Nov 24, 2008 | GE Zoneline AZ38H12DAD Split System Air...

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