Whirlpool Dishwasher ADP 4501/5 WH, The pump is operating intermittently, as if the power is being cycled, or the power supply contactor isn't holding in properly? Any ideas
No. I suggested you check the base for flooding. Underneath the cavity.
If it's a free standing dishwasher, tip it back about 45 deg. Have some towels around it in case it is flooded.
Drain it out, then reset and try your dishwasher, keep a check for water leaking into the base. If your pump is still stuttering it's likely you'll need a new one.
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