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This model has no power supply board

This is a 57915.331 model and has no powersupply board.

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Well, you said the contacts were burnt out so that means it is either an electrical short or something overheating on the inside. Have you been near it when it cuts off? Have you smelled anything burning? If so, you will need to get that looked at by a professional and see what they say could be burning (if anything is).

Posted on Nov 16, 2008

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The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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ASTA09JEC Fujitsu model number operation light not on but time light (red/orange) flashing turns on then turns off automatically I have tried the reset button and turned the timer off on the remote

This is a serial signal error which means the outdoor unit is not talking to the indoor unit or vice versa. Most likely the outdoor board is stuffed but you need to count how many times the timer flashes to be absolutely sure which error it is. If you turn power off at the isolator for 5 mins then restart, this can sometimes clear an error caused by power supply fluctuations. If not, you will have to replace one of the boards. Indoor board allow around $200 - $250, outdoor board allow around $300 - $400.

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1 Answer

Control board

Hello, check to see if the board is receiving 120 volts at the L1 and neutral terminals, if you are then the board will need to be replaced, if you are not getting power then trace the wirimg back to where the voltage stops, for example could be a bad door switch, fuse, circuit breaker. If it is the board then just write down where all the wiring goes or sketch it out on a piece of paper and then remove the board and take it to a Hvac supply store, that way they can match it up for you and get the exact board you need.

May 08, 2012 | Heating & Cooling

1 Answer

Power is off for and was on the night before. Tried another socket for power, same problem.

If this model is controlled by a remote then it is possible that the LOW voltage supply to the CPU is absent as it has failed. This is normally a tiny unit and can be replaced by a transformer supply or the original board - SMPS.
If not check the power switch and the main relay.

Apr 06, 2011 | LG Heating & Cooling

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No power on the ac switch board

Hi, If there is no power in switch board you need to observe upstream line of power including your switch board, cables, circuit breaker supplying your air conditioner. You may find poor connection, defective switch / breaker. This task can be easy by using voltage meter and test pen. Regards,

Dec 07, 2010 | Carrier 52PQ307 Wall/Window Air...

1 Answer

My Dometic SL135R-A 13.5K gets no power. It has a heavy black and a heavy white cord going to what I believe is the circuit board. Just got this unit on a camper and realized that the top shroud was...

Good Morning, You say it is a heavy cord that is supplying power to this unit? Or heavy black and white wires coming out of a cord connected to the board? What you need to do first, is to determine where the power is coming from that feeds the cord or power supply to the unit itself. It has to be Fed from a Seperate power supply somewhere? When you find it, see that there is power there and see why its not getting to the unit, fuses, tripped breaker Ect. Thats what it sounds like to me if the shroud is cracked and a part of it is gone, that water has entered the electrical components corroding the circuit board causing it to fail.It takes just a small amoumt of moisture to ruin a sensitive component as a circuit board and will blow fuses, trip breakers and so on. If you can get power to the unit with out tripping something, check power going into this board and see if it will start up. If it starts up and runs, check it over good to see what its condition is in. If not, and it trips or blows what ever you have, unplug the wires at the board, insulate the bare ends and turn power back on. It should hold. If so, Replace the board. You can take it out and look it over closely, and should see any hot spots or circutry failures on it. Mark any wires that may be attached so you know where they go back. You should be up and runnig after these steps. Best of luck,
PS You can get the board at any RV parts dealer, and they may have a aftermarket one that will save you $. The OEM (factory board) are more costly.

Nov 21, 2009 | Dometic Rooftop RV Air Conditioner

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Payne Gas Pack Furnace A/C and Heat Unit

Do you have power to the unit?
Is it a 110v or a 220v unit?
check your power supply.

Jan 02, 2009 | Heating & Cooling

1 Answer

Carrier Heater/Airconditioner Model 58DRC045-GB fan runs continuously and neither Heater or A/C will turn on.

You can temporarily cut off the power, expose control board, pry off upper rear relay plastic cove, remove spring and stretch it out just a little from its original length because the relay is either getting weak or there are other problems with the board supplying the proper voltage to it... anyway, when putting the spring back on be sure the relay switch is properly aligned in the holes furthest away from the board.. This should provide at least several more months of proper operation before board needs to be replaced... Quick fix, install new board... Tech Chris w/ Absolutely Fabulous! AFSO.US

Jul 09, 2008 | Heating & Cooling

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