dmr78ahs I'm wokring on this dishwasher. There is a grinding noise when first started up and after a minute or two I get 9e error code. I believe that means low water level. I took out and took apart the water level assembly and I didn't see any obstructions. the micro switch tested good. I took off the flow meter as well and took it apart and It looked good as well. I have been told those flow meters can go bad. Is there a way to test a flow meter? Where could the grinding noise be coming from? Drain pump maybe?
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Samsung dmr78ahs dishwasher grinding noise and error code 9e
Started by jkilgore34, Oct 04 2011 07:02 PM
dmr78ahs grinding noise and
2 replies to this topic
#1
jkilgore34
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Posted 04 October 2011 - 07:02 PM
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#2
john63
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Posted 04 October 2011 - 11:07 PM
<<<There is a grinding noise when first started up>>>
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Many Samsung DMR57 & DMR78 dishwashers are known for developing a rattling/grinding noise during DRAIN MODE.
This is usually caused by a broken plastic mounting tab from the upper rack ADJUSTERS.
Each side of the upper rack has a tan/gray square RACK ADJUSTER---after a mounting tab (or 2) breaks off---this piece of plastic eventually ends up in the DRAIN PUMP HOUSING.
The DRAIN MOTOR should be removed to inspect for debris.
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<<<after a minute or two I get 9e error code>>>
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A normal amount of water in a DMR78 dishwasher would be---at about 1 inch past the HEATER SHIELD in the tub.
If you've tested the SWITCHES on the LOW LEVEL SENSOR---then they're not at fault.
Press the following buttons at the *same* time:
DELAY START--NORMAL--POWER(button)
The word "ALL" appears for 3 seconds followed by "t1"
(NOTE: Test #1 checks the functions of the INLET VALVE--FLOW METER--LOW LEVEL SENSOR)
Press the DELAY START button---the DRAIN MOTOR will run for 45 seconds. Then---water will enter the tub.
When the PULSE COUNT (on the display) reaches "660" or greater---press the NORMAL button four times.
A flashing "t5" will be displayed & water will drain for 30 seconds. After 30 seconds---the "t5" will stop flashing.
Press the NORMAL button again---"t6" will be displayed. The word "OFF" should appear in the control panel display---indicating that the LOW LEVEL SENSOR SWITCH is in the correct position for *No Water* in tub.
If the INLET VALVE--LOW LEVEL SENSOR--FLOW METER function normally----replace the MAIN BOARD.
- Samurai Appliance Repair Man and kdog like this
To eliminate:
Musty odor
L-O-N-G cycle times
Dingy/yellowing whites
Suds error message
Slow spin speeds
Intermittent water leaks (from rear of washer)
And other annoying symptoms which vary brand-to brand.
Read below:
The *correct* amount of HE (High Efficiency) detergent that should be used in any front load or agitatorless top load washer with tub sizes 3.0 cu ft and larger is as follows:
HE: (2) Tablespoons Per Wash Load
HE 2X: (1) Tablespoon
HE 3X: (1) Teaspoon
Perform a TUB CLEAN CYCLE every (4) months.
Use: "Tide Washing Machine Cleaner"
Musty odor
L-O-N-G cycle times
Dingy/yellowing whites
Suds error message
Slow spin speeds
Intermittent water leaks (from rear of washer)
And other annoying symptoms which vary brand-to brand.
Read below:
The *correct* amount of HE (High Efficiency) detergent that should be used in any front load or agitatorless top load washer with tub sizes 3.0 cu ft and larger is as follows:
HE: (2) Tablespoons Per Wash Load
HE 2X: (1) Tablespoon
HE 3X: (1) Teaspoon
Perform a TUB CLEAN CYCLE every (4) months.
Use: "Tide Washing Machine Cleaner"
#3
jkilgore34
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- Chief Appliantologist
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- 118 posts
Sōhei
- Flavorite Brew:Dogfish Head 120 minute IPA
Posted 05 October 2011 - 04:55 PM
I cleaned some gunk out of the water level sensor and found a piece of plastic in the drain pump housing just like you said. Thanks for the help.
Recent blog entries on this topic
How to fix a Samsung DMR57 or DMR78 dishwasher making a grinding noise and error code 9E
By Samurai Appliance Repair Man in Samurai Appliance Repair Man's Blog, on 05 October 2011 - 07:55 AM
Sublime Master john63 reveals the kata for this encounter:
<<<There is a grinding noise when first started up>>>
*************************
Many Samsung DMR57 & DMR78 dishwashers are known for developing a rattling/grinding noise during DRAIN MODE.
This is...
<<<There is a grinding noise when first started up>>>
*************************
Many Samsung DMR57 & DMR78 dishwashers are known for developing a rattling/grinding noise during DRAIN MODE.
This is...
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