Monogram dishwasher not cleaning, fine filter needs cleaning after each use

Dishwasher Repair
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1

Brand:GE
**Model Number:**ZDT925SPN5SS
Main Symptom:Not clean
What happens & when:Dishes not clean, have to clean fine filter after each use. can’t find tech info for 925 model, suspect hidden heater in pump assy. Can’t confirm which part to purchase. Have called twice and got info for dry heater both times.

Error Code (if any):
Parts or tests already tried:
Photos / video link:

2

The hidden heater is built into the pump assembly AP6980541.

https://www.appliancepartspros.com/ge-variable-speed-wash-wd19x25702-ap6980541.html