Model #FWM2411A1 ICP Air Handler (indoor blower&evap)

  • Air Handler
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Question and Answers

Q:

Internal 5A fuse keeps burning when trying to turn the heat on in our heat pump system

A:

Thanks for contacting manage my life about your cooling/ heating system, I will be glad to assist you. Based on the information you have provided there seems to be a short in the system. By the description I also think the problem is either in the low voltage wiring in and around the furnace board to the thermostat (even inside the walls) This should be checked out to determine if the short is in this low voltage wiring.  There may also be a component shorted in the main control board, Suggest looking closely at this control if you have eliminated the low voltage wiring. There is no special test to perform; you will just have to be diligent in making the needed checks searching for a short between wires or short to ground. If you decide to have a technician out here is a link to Sears Home Services.  Ron H.

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Ron H -
Sears Technician
December 05, 2013
Q:

ICP Model #FWM2411A1 Air Handler: first burn 5A fuses now not generating cool air.

A:

Thank you for your question. I'm sorry you are having this problem with the air handler. Thermostats can vary significantly. Unless it's a simple 4 wire thermostat, it would be rare for 2 different thermostats to be wired up the same way. Thermostats will usually come with their own wiring diagrams for different type units and the thermostat has to be wired to match the type of unit it will control. Without the diagram that should be with the thermostat, it could be very difficult to determine, if it's wired correctly. It's possible the thermostat may be causing the problems you're experiencing. Based on the information listed, this is something that will probably need to actually be seen by a technician, to be able to determine, what needs to be done. I'm listing a site you can access, to schedule a tech to come out. Here is a link for the website: Sears Home Services. I hope this will help you.

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Scott D -
Sears Technician
August 28, 2013
A:

Dear Scott, Thank you for your reply. Since I have switched back to the old thermostat, the wiring is the same as before. But now the AC doesn't generate cold air except only Fan is running, could it be something else other than the thermostat with my current issue? Such as refrigerant level may be low or some electrical problem? Shameless to say, i am not afraid to get my hands dirty and am an Electrical engineer so I got the tools to check for shorts or voltages and so on. I just need an expert's advise/guidance on where to check things. If all things fails, I will have to hire a technician. Thank you, David

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David -
August 28, 2013
A:

David, when the fan is running, check to see if the condenser outside is also running. If it is running, check to see if the compressor is running or just the fan motor. If the compressor is running, then this would lead to a sealed system problem. A technician would be required to make this type of check and repair. If the compressor is not running, then the problem could be with the compressor itself, the capacitor or it could be a loose or burnt wire. If the unit is not running and if this is a heat pump, it could be a difficult check. Some heat pumps are very complex. If it has a pressure switch, it could be a low charge in the system, which would cause the switch to open. If the contactor has 24volts being applied to it and nothing is running, then the contactor would need to be replaced. I hope this will help you. It's usually best to have a technician check these units because in most cases, the system charge will need to be checked. I hope this will help you.

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Scott D -
Sears Technician
August 29, 2013
A:

Dear Scott, Thank you for your reply. I have a dumb question: is our AC a heatpump or an HVAC or something else? (I have attached a picture). Or is a heatpump the same as an HVAC? On the manual it says it's "Air Handler". SO I don't really know how to classify mine. If I know this, I can communicate more easily with Sears. Thank you again for your time. I have also attached a link to the Sears website where it shows the manual. David

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David -
August 29, 2013
A:

David, thank you for the picture. However, this is only the air handler. To determine what type of system this is, the model number of the outside condenser will be required. I would suspect looking at this, that it will not be a heat pump system but the model number will be needed, to know for sure. If you would like more assistance, let me know and I will assist you further. If you would like to have a technician check this, you can call 1-800-469-4663 to schedule a tech to come out. I hope this will help you.

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Scott D -
Sears Technician
August 30, 2013
A:

Hi Scott, thank you for your reply. I hired a technician who is recommended by my condo manager. He services the HVAC systems for the association. Anyways, he told me I got a bad capacitor (60uF? i remember that's what he told me). So he charged me $245 to replace that. The AC was started to work. He also told me I got a heat pump. The reason I'm writing is today, we painted our bedroom. In order to avoid letting my wife inhale the smell, I turned off the AC and opened the windows. Then early in the morning around 1am, the room temp goes to about 79F. So I decided to turn on the Ac. But AC didn't turn on. I checked the 5A fuse in the Air Handler. Not surprisingly, it's burned again. Is this problem related to the CAP we just replaced or it's something else? Could it be the Hold TEMP and room TEMP are quit different and the air handler needs to draw a lot of current to run hence killed the fuse? Now I know where my compressor is by following the technician up to the roof and I think I'll be able to get to it myself if need be such as if you still need the model #. Thank you, Scott.

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David -
September 03, 2013
A:

David, this could be a problem with the low voltage side of the system tripping the fuse. With a heat pump system it could be complicated to locate. Since the tech was just out to check this and the fuse is still blowing, I would recommend having the technician come back to check it again.

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Scott D -
Sears Technician
September 03, 2013
A:

Thank you, Scott, for your help along the way. I will ask the tech to check again.

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David -
September 05, 2013
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