Hi, the dishwasher fills with water OK. Then there is a faint hum and it does not go into the wash cycle. The little time indicator just moves around and around. When I cancel, it drains fine–the motor pumps it out.
I checked the spray arm and food grinder. All seem OK. Also I was able to turn the blade on the food grinder. It turned easily in one direction, but I had trouble turning it in the opposite direction. (It may just be spinning on shaft–I don’t know.)
Ideas???
— Begin quote from streetguy;335156
Hi, the dishwasher fills with water OK. Then there is a faint hum and it does not go into the wash cycle. The little time indicator just moves around and around. When I cancel, it drains fine–the motor pumps it out.
I checked the spray arm and food grinder. All seem OK. Also I was able to turn the blade on the food grinder. It turned easily in one direction, but I had trouble turning it in the opposite direction. (It may just be spinning on shaft–I don’t know.)
Ideas???
— End quote
Streetguy,
That style dishwasher has a single direction motor, and a separate drain pump(that’s why it will drain but not wash).
You should check for 120 VAC to the pump motor from the control board.
( Blue wire to the motor to chassis ground, when the motor should be in the wash mode). You’ll need a multi meter to do the test.
Based on your post, you may have something stuck in the impeller assembly,
you may need to remove the motor from the pump housing and check,
[FONT=Arial][SIZE=4][FONT=Arial][SIZE=4][LEFT]Removing the Wash Motor[/LEFT]
[/SIZE][/FONT][/SIZE][/FONT][FONT=Arial][SIZE=3][FONT=Arial][SIZE=3][LEFT]1. Remove the bolt securing the wash
motor and drip shield in place on the pump
assembly. [/SIZE][/FONT][/SIZE][/FONT][FONT=Arial][SIZE=3][FONT=Arial][SIZE=3][/LEFT]
[/SIZE][/FONT][/SIZE][/FONT][FONT=Arial][SIZE=3][FONT=Arial][SIZE=3][LEFT]2. Once the bolt and drip shield are removed,
turn the wash motor until it stops (approximately
¼ turn).
3. Pull the motor straight back from the sump
assembly. Some effort may be necessary
to dislodge the motor. The volute will remain
attached to the motor.
[/LEFT]
[/SIZE][/FONT][/SIZE][/FONT][SIZE=3][FONT=Arial][SIZE=3][LEFT]NOTE: [/SIZE][/SIZE][/FONT][FONT=Arial][SIZE=3][FONT=Arial][SIZE=3]When reinstalling the wash motor and
volute, do not pinch the volute seal between the
volute and sump. Use a small amount of rinse
aid on the volute seal to help installation.[/LEFT]
[/SIZE][/FONT][/SIZE][/FONT][FONT=Arial][SIZE=3][FONT=Arial][SIZE=3][LEFT]Fig. 3-17[/LEFT]
[/SIZE][/FONT][/SIZE][/FONT][SIZE=3][FONT=Arial][SIZE=3][LEFT]NOTE: [/SIZE][/SIZE][/FONT][FONT=Arial][SIZE=3][FONT=Arial][SIZE=3]When reinstalling the sump assembly,
align the locator key with the corresponding
slot in the tub opening.[/LEFT]
[/SIZE][/FONT][/SIZE][/FONT][LEFT][SIZE=1][FONT=Arial][SIZE=1][/SIZE][/SIZE][/FONT]
[SIZE=1][FONT=Arial][SIZE=1]While you have the motor out, you should check the motor windings resistance, with a multi meter[/SIZE][/SIZE][/FONT]
[SIZE=1][FONT=Arial][SIZE=1]( the wires that attach to the motor)[/SIZE][/SIZE][/FONT]
[SIZE=1][FONT=Arial][SIZE=1]Blue to yellow wires should read 6 to 10 ohms resistance[/SIZE][/SIZE][/FONT]
[SIZE=1][FONT=Arial][SIZE=1]Blue to purple wires should read 3 to 7 ohms resistance[/SIZE][/SIZE][/FONT]
[SIZE=1][/SIZE]
[SIZE=1]Once your checks and repairs are made and the pump reinstalled, [/SIZE]
[SIZE=1][/SIZE]
[SIZE=1]You should be OK.[/SIZE]
[SIZE=1][/SIZE]
[SIZE=1][/SIZE]
[SIZE=1][/SIZE]
[SIZE=1][FONT=Arial][SIZE=1][/SIZE][/SIZE][/FONT]
[FONT=Arial][SIZE=1][FONT=Arial][SIZE=1] [/LEFT]
[/SIZE][/FONT][/SIZE][/FONT]