Inverter board codes 1 blink, long delay, replace motor (board). what's next? Don't have M/N or S/N just schematic #175D2750G308

Hi Basil, Sorry for the delay in replying, I was confused as to the nature of the issue, If it is a treadmill or inverter issue......This is an inverter problem that you have. To reset the E12 error code you need to turn the power off and then on! This should clear the code!

OK if you have blinking red light.

Try to open the cover then disconnect the inverter board after that try to power it on again..

If the light stays in blue (LIT) and of course you don't have picture or backlight you have faulty inverter board that need to be replace.

usually attached to the motor in the form of a black box.

Remove the front panel. Observe the motor flashes.
The motor blinks on and off all the time.
It blinks faster when running.
If a failure occurs you will get the following flashes:

1 flash bad motor
2 flashes slipping belt
3 flashes corrupted software bad motor
4 flashes failed mode shift circuit
5 flashes bad motor
6 flashes locked motor check for objects between tub
7 flashes bad lid switch.
8 flashes motor overheated too much soap
9 flashes brake resister is toast bad motor.

To Reset the Inverter Board: Push the timer knob in so the washer is idle. Unplug the machine for one minute. Plug back in and raise and lower the lid six times within 12 seconds.

After resetting the inverter board, put the machine in a spin cycle and see if it runs. If not, check for a green blinking light on the inverter board. It will flash failure codes. If no light is visible you have a blown fuse built into the neutral side of the harness on the white/red wire.

If you see a small bubble in this black heat seal and the motor light is not on then the fuse within is blown replacement part is WH49X10041
What else do I have? Oh yeah how about the SERVICE MANUAL

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

Inverter boards usually are replaced in full - even in a repair shop. There's little demand for board schematics. Next to this the CCFL tube could be broken instead, with the inverter board still working.

Inverter boards can be tested with an oscilloscope - just holding the leads near the board will show a 58 Khz sine wave.

Hallo! Your problem is in the invertor block. Caution! High voltage! approx. 1500V at the exit to the lamps. The possible reasons: 1. the voltage doesn't arrive at the invertor board. In this case check the voltage at the enter of inverter board. Many times there is a little green fuse that burns. 2. when you switch on the TV, if the screen blinks for one- two seconds, this may be problem with the high voltage transformator, to replace 3. the lamps. only to replace with other for checking 4. the board of the invertor. In this case, take the schematics, make the measures and post them, we will try to solve it.

Use downwards force to relieve tension on the spring clips holding that front panel on.

Video how to:

Once yall have the front panel removed yall will notice the motor has a green blinking light on it.
The motor blinks on and off all the time It blinks faster when running. That is normalment mon ami.
If it ain't acting right it will display flashes:

1 flash bad motor
2 flashes slipping belt
3 flashes corrupted software bad motor
4 flashes failed mode shift circuit
5 flashes little green men (bad motor)
6 flashes locked motor check for objects between tub
7 flashes bad lidswitch.
8 flashes motor overheated too much soap
9 flashes brake resister is toast bad motor.

To Reset the Inverter Board: Push the timer knob in so the washer is idle. Unplug the machine for one minute. Plug back in and raise and lower the lid six times within 12 seconds.

After resetting the inverter board, put the machine in a spin cycle and see if it runs. If not, check for a green blinking light on the inverter board. It will flash failure codes according to the picture above. If no light you probably have a blown fuse built into the neutral side of the harness on the white/red wire.

Service manual and more HERE



If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

This is sort of a generic answer but I found this info about Sony blink codes. Hope it helps!

http://www.agoraquest.com/viewtopic.php?forum=70&topic=31721

sorry for the delayed response, PC problems. Anyway, it could be 1 of 3 boards. the control board, interface board, or the control panel. Visually inspect them and see if anything looks blown. Most of the time it is the control board. However, without actually seeing it it is an educated guess.

I'm going through the same thing with a Dell 1905FP - it has 3 bulging capacitors on the Power Supply/Inverter board, and I suspect they are the culprits. At first it delayed a few seconds to start (green power light flashing in all situation), then it took about 10 minutes, then delayed about 45 minutes, then went all the way to about 6 hours - all within a week. When it did come up after the delay, it was perfect. Now it won't come up at all....

It's out of warranty, Dell will have nothing to do with replacing this common failing board, and the replacement board is $50 from an online LCD repair shop.

I'm trying the capacitor replacement tomorrow - they're about 25 cents each... it's worth a try.