FIXED GE Dishwasher GDT645SYN0FS drains but continues drain cycle until it times out

[evans1341]

Model Number

GDT645SYN0FS

Brand

GE

Age

1-5 years

Dishwasher started by not finishing all of the cycles. It would go through first 4 cycles(drain, fill, prewash, drain) and then stop at some point before the main wash.
Sometimes it never gets past the first drain cycle.
Detergent module was never opened.
No error messages ever appeared.
I have went through the service mode and everything worked

1. drain
2. water valve
3. circulation pump
4. heater
5. detergent module

Here is what I have done:

• Replaced drain pump
• Cleaned out pressure sensor(new one on back order)
• New main board

I am lost for what else to try.

TIA

 

[Jake]

Here's the service manual: https://drive.google.com/file/d/15CmFe-hcufL5XUJPsqlEN3AzwDZ6z0M-/view?usp=sharing

This is a very strange problem, since all the parts are working in Service Mode.

I really don't know what the cause could be except the pressure sensor.

Look here:

FIXED - GE Dishwasher GDT645SYN0FS - Drains, but pump keeps running ( intermittently )

The dishwasher was working fine ( when it works ). It started to finish prematurely ( without the white lite to indicate successful completion ). Here is what I have observed. The unit drains, but the pump keeps running, until it errors out. This does not happen all the time. Today for...

www.applianceblog.com

Here's the pressure sensor for your model IN-STOCK:

GE WD21X25468 Pressure Sensor Asm (AP6976524) - AppliancePartsPros.com

Pressure sensor asm WD21X25468 / AP6976524 made by GE

click.linksynergy.com

Watch this video to access it:

Jake

 

[evans1341]

Installed a new pressure sensor and everything works

 

[Jake]

Excellent Evans, glad to hear the new pressure sensor fixed it.

Thanks for the update!

Jake