Question about Goodman GMS90703BXA Heater

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No light at all on board

I have no light at all on my board. I have power to the unit, but it will show no signs of turning on (like it has no power). I would have to guess the board is shot. It seems like a pretty easy job to replace. Is there anything I can be missing or should know.

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  • djm41368 Nov 22, 2008

    GREAT INFO.!!!!! THANKS SO MUCH

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Have you checked your fuse? It happened to me and drove me nuts. The board would not even get the termostat to triger?

Posted on Nov 21, 2008

  • MasChingon Nov 21, 2008

    It should have a 3 or 5 amp fuse on the board.

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Posted on Jan 02, 2017

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Whirlpool ADP3315 dishwasher no lights no response.


If you wish to get some details; check the site linked here. Pull up older posts.
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What is the most common problems that occur in Seiki tv model # SE50FY10 when the screen does not turn on but the power light is on?


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
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In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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Where are the fuses located in onkyontx-sv525- only found 1 at power in


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I have a Sony Bravia kdl-40xbr9, when I turn it on it shows no picture or sound , the green light and Sony logo turn on normally. When I take the power cord out and put it back again , the Bravia sign and...


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E2 error on pro form 730 key in belt and motor run about 5 sec and shuts down sensor light blinks but not a steady light


Dear Sir:

I will try to help you, use the patience and carefully: need screwdriver, hex, allen+Dvom(DigitalVoltemeter)


Troubleshooting: ERR2 - Motor Movement

Since the motor moves when you press speed up, focus on the optic sensor, its wire connections, and the

optic sensor wheel. If all seems well at the sensor, inspect the motor.

Optic Sensor

??? Optic sensor wheel - Make sure that the optic sensor wheel rotates securely, without wobbling, in the

middle of the optic sensor. Realign and tighten if necessary. If optic sensor wheel teeth are missing or

bent, replace the optic sensor wheel.

??? Optic sensor wires - Make sure that wires are inserted securely to the optic sensor and to the drive board.

Check wire continuity.

??? Optic sensor - Turn on unit power. Turn the motor flywheel with your hand. The optic sensor

indicator (LED10, drive board) should light. . If it does not light, and all parts above are

good, replace the optic sensor.

Motor

??? Motor arcing - Does the motor show signs of wear - irregular arcing, carbon dust?

??? Motor brushes - Do brushes show signs of irregular wear - cracks, dents, lines? Replace the

motor brushes.

??? M+ M- Wires - Make sure wires are connected properly.

Other

??? Display main IC - To ensure proper signal processing, press down on the main IC on the display

board, marked U5. .

??? Ribbon cable - Ensure that the ribbon cable is attached at the drive and display boards. Check cable
continuity.

Troubleshooting: ERR 2 - No Motor Movement

Turn unit power off and then on to clear the ERR2 message from the display. To test whether the drive

board is putting out power to the motor, insert multimeter probes on the M+ M- connectors and press

the speed up key. . (Note: To avoid ERR2.)

Power to Motor

If the drive board puts out power to the motor, but the motor does not operate, either the motor wires or

motor is malfunctioning. Test wires for continuity. Inspect connections. Perform an ohm test on the

motor . Inspect motor brushes.

No Power to Motor

If there is no power to the motor, either the signal is not arriving at the drive board, the transformer

or inductor is bad, or the drive board is bad. Inspect the following:

??? Display - Does the display beep when you press speed up? If so, the display has sent its signal.

If not, inspect overlay-to-display connections. And press down on the main program IC, marked U5.

??? Wires and their connections - inspect data cable connections from the display to the drive board,

test data cable continuity, inspect M+ M- wires from the drive board to the motor.

??? Inductor (6310 only) - inspect inductor and its wires and their connections. .

??? Transformer - inspect the transformer and its wires and their connections.

??? Drive Board - inspect the drive board for burnt or cracked components. Inspect LEDs (See DRIVE.03

and DRIVE.04). Press on the drive board IC chips to ensure good connection. If the power indicator on

the drive board, LED8, lights, but there is no power to the motor, and other components are good,
replace the drive board.

wITH THIS YOU FIX IT. If you need further assistance, please reach me

SINCERELY. GOD BLESS YOU.

E.CUADRA
MANAGUA, NICARAGUA. C.A.

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2 Answers

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1 Answer

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1 Answer

Won't Power On


This reply does not solve the problem, however my MAYTAG M7DH
45B2A DEHUMIDIFIER had the same problem.
Circuit Board COR 268BV1.O had circuits burned (on lower side of
board). The circuits that showed signs of arching were the right end
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board or junk it
MY LAB

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