Question about Dishwashers
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Posted on Jan 02, 2017
SOURCE: Loud noise at end of Draining
If your dishwasher seems noisy, check these:
1. Water-inlet valve
3 Heater fan
An aging water-inlet valve can sometimes fail slowly, rather than all at once. It can shudder on and off rapidly, causing the incoming water lines to shake, rumble, and rattle--sometimes violently. If yours is doing this, replace the inlet valve.
If it's the motor that's noisy, either of these may be the "culprit:"
As motor bearings wear out, they can become quite loud when the motor runs. They wear out quickly if they frequently get wet, because the water washes away the motor bearing grease. Bearings can get wet if the spin seal is defective. Then there will also be water leaking onto the floor beneath the dishwasher. Replace the seal if it leaks (read about the main tub seal in the "It leaks" section, later).
If, from beneath the dishwasher, you can see a round, plastic disc that's mounted to the top of the motor (a "slinger"), it may have broken free of the motor shaft. If so, it could be rattling around the shaft while the motor is running. If that's the problem, you need to replace the motor.
If the heater fan bearings are rusted or worn, they may squeal, or scrape loudly during the drying cycle. If this is the problem, replace the fan motor. Alternatively, the fan blade may be loose. If so, you need to replace it.
Small fruit pits, toothpicks, and fragments of glass sometimes get stuck in the pump. When this happens, open the pump and remove the debris. The pump is usually mounted directly to the motor, then attached to the bottom of the dishwasher.
To get to the pump, you usually need to remove the lower rack, the spray arms, and the spray arm support from the inside of your dishwasher. A dishwasher pump isn't obvious. Look for an impeller--a round, plastic fan blade-type device that spins around and pushes the water toward the drain. When you can see the drain impeller, you should be able to see the clogging debris.
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Posted on Feb 11, 2009
-Switch to a brand name detergent powder - like Electrosol or Cascade and do not fill the dispenser cup full. You will notice the difference immediately.
-Remove the filter assembly one more time and inspect underneath with a flashlight. Look closely for debris and also inspect the impeller to look for damage and that it is spinning freely.
Reassemble and listen for the growling sound. It should not happen. If it continues, you may have a a failing wash motor / motor bearing.
Please report back what you find. OK?
Posted on Apr 11, 2009
First check to see if anything has gotten into the sump drain inside the bottom of the dishwasher tub. Sometimes a piece of plastic wrap, or other small item can become lodged there, causing the DW to drain slowly.
If nothing there, check the air-gap device at the sink, as these can become clogged over time and that would also prevent proper draining. The air-gap is the round (usually silver chrome colored) cap mounted on the corner of the sink). Pull off the cap, it comes straight up with a little twist and polling motion. Clean out the screen filter and also look down the hose to see if there are any obstructions in the drain hose.
If that is OK, check the drain hose from the air-gap down to the connection at the sink drain, or if you have a disposal, where it is connected to the disposal. Sometimes small bits of stuff can get stuck in the hose at these various points and any build up over time, will make proper draining difficult.
You can also flush the drain lines with hot water to make sure the lines are clear. If none of this works, you could have something in the DW sump pump and that will require removing the DW from under the counter and checking the pump area for obstructions. Sometimes you can easily remove the flexible pump body and get at the drain valves. Just be sure to disconnect the power and turn off the water supply before removing the DW to attempt any repairs.
Hope you find this Very Helpful and best regards!
Posted on Aug 29, 2009
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