FIXED WED8300SW2 Whirlpool Duet Sport - Control Panel Selecting options at random. Cannot start

[nh9]

Model Number

WED8300SW2

Brand

Whirlpool

Age

1-5 years

Hey guys,
I have a Whirlpool Duet Sport (WED8300SW2) and one day it just stopped working.

I can't seem to get it to go into diagnostic mode and the control panel seems to have a mind of it's own.

I recorded me trying to set the control panel to a specific setting but the mode selection light seems to just completely jump around at random.

I had it unplugged for a month, plugged it back in and it worked for another month before running into this same issue.

The two buttons, signal and heat, seem to be completely unresponsive and do not have any effect when pressed?

The start button also seems entirely unresponsive as well, no relay clicking or attempt to start it.

Has anyone run into a similar issue?

 

[Jake]

Hi,

Yes, the problem is possibly the control panel(aka user interface).

Here's the control panel( aka Console electronics and housing assembly) for your model, if needed:
User Control and Display Board WP8571955


Also check the control board for any bad/burnt spots on it.

Here's the control board for your model, if needed:
WPW10111606 Electronic Control Board

 

[nh9]

Upon opening the unit, I noticed there was a blown relay. Because this issue has been intermittent, I'm going to try a thermistor and replacing that relay

 

[Jake]

Good find.

Let us know how it goes.

 

[nh9]

I suspect that the combination of a heavy load of laundry and bad thermistor caused that relay to blow.

I recall the dryer running very hot, even on low settings. Way too hot to touch anything after a cycle for a while.

Still haven't quite put together why the control panel is acting the way it is or why the dryer worked after being unplugged for a few weeks but I have seen strange electrical issues in devices manifesting in weird ways before.

The are where the fault occurred seems pretty far away from the control board so I am hoping the control/interface panel is unaffected and will work after I repair the control board.

 

[nh9]

The relay alone did not solve the issue. Waiting on a thermostat/thermistor. Going to pull the display board and bring it over to my bench to test for faults while I'm waiting.

Piece by piece...

 

[Jake]

I recall the dryer running very hot, even on low settings. Way too hot to touch anything after a cycle for a while.

If your run a AIR DRY/NO HEAT cycle does the dryer still get hot? If so, it could be the thermistor, grounded heating element or the HEAT relay on the control board that has gone bad, if your dryer exhaust vent is clean and clear to the outside of your house.

I'd first ohm test the thermistor at room temperature.

At room temperature or 70*F the thermistor should show between 11.5K and 11.9K ohms (11,500 -11,900 ohms).

Normal thermistor resistance values:
60 degrees F. - 15.3K ohms.
70 degrees F. - 11.9K ohms.
80 degrees F. - 9.2K ohms.

Here's the thermistor for your model:
Thermistor WP8577274


Make sure you unplug your dryer first and keep it unplugged when ohm testing.

This video shows how to access it:

 

[nh9]

Control panel resolve the issue. No visible faults on old control panel

 

[Jake]

Excellent, glad to hear the new control panel fixed it.

Thanks for the update!