Author Topic: Samsung DMT400 over level water error  (Read 2567 times)

Online jason1979g

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Samsung DMT400 over level water error
« on: October 29, 2013, 07:08:55 PM »
Cant seem to figure out this error. was in SVC mode and it passes the water valve test and flow meter test in test#1 also passes the over level water test in test#6. took apart the water inlet valve to look for blocked screen but it was clear. changed the main control board but that didn't work. any other suggestions would help

Online jason1979g

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Re: Samsung DMT400 over level water error
« Reply #1 on: November 01, 2013, 08:31:32 AM »
no one has any experience with these dishwashers?

Offline Spannerwrench

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Re: Samsung DMT400 over level water error
« Reply #2 on: November 01, 2013, 11:11:31 AM »
- Reconnect the Overflow Sensor connector.
2. Check whether the Inlet Valve operates normally.
- See “Water supply Error”.
3. Check whether water is supplied (even small amounts) in the intervals when the Inlet Valve is not operating.
- Remove foreign material from the Inlet Valve.
- If you cannot remove the foreign material from the Inlet Valve, replace it.
oE
[Or] ‘Heavy’ + ‘Smart Auto’ LED
1. Check the connections for the Overflow Sensor connector.
4. Check whether there is any trace of water leakage on the top of the Case Sensor.
- Clean the Hose-Sensor and the Case Sensor.
5. Check whether an “Over Level Water Error” is detected when the assy wire-harness connector for Overflow Sensor is not connected.
Normal:The“OverLevelWaterError”doesnot occur.
- Faulty: Replace the Main PBA assy
- Normal: Replace the Assy case brake(flow-meter).

Over-level water error
4-11

Online jason1979g

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Re: Samsung DMT400 over level water error
« Reply #3 on: September 12, 2014, 11:42:10 PM »
working on another one of these. "heavy" light flashing. the drain hose was split and leaking into the drain pan. replace hose, cleaned pan and replaced leak sensor b/c it was corroded and nasty from the hose leaking. after it was all together it still flashing "heavy". i tried swapping the main board but still no go. pulled out and checked pan and sensor but everything was dry. have another leak sensor on order. any other insight please let me know.   

Online domain

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Re: Samsung DMT400 over level water error
« Reply #4 on: September 13, 2014, 02:35:14 PM »
did you check if the pan was dry after it failed again? I bet it is still leaking. Leak sensor is NOTHING more than wires/ pins sticking down waiting for the water to CLOSE the dc circuit, saying leak... NOTTHING to go bad although i have seen them corroded. Do some simple continuity checks 

Online jason1979g

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Re: Samsung DMT400 over level water error
« Reply #5 on: September 13, 2014, 07:31:57 PM »
i dropped the pan and checked. it was bone dry. i did take the sensor off and it was dry. i wiped the pan and sensor off just to be sure. reassembled and still flashing "heavy". the previous one i did was also dry and sensor looked good but still had to replace the  sensor.   

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Re: Samsung DMT400 over level water error
« Reply #6 on: September 13, 2014, 09:35:33 PM »
you must clear that error by power off or hard reset before trying again O0 O0

Online jason1979g

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Re: Samsung DMT400 over level water error
« Reply #7 on: September 14, 2014, 06:55:28 AM »
I cut the power to remove it. how do you "hard reset"?

Online Patricio

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Re: Samsung DMT400 over level water error
« Reply #8 on: September 14, 2014, 10:42:26 AM »
One thing I always do is use my heat gun to 'dry it out good.   I have had the DW work after doing that at times.   I think the sensor trips because of humidity (moisture) still present even though "wiped clean".
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Re: Samsung DMT400 over level water error
« Reply #9 on: September 14, 2014, 05:04:19 PM »
One thing I always do is use my heat gun to 'dry it out good.   I have had the DW work after doing that at times.   I think the sensor trips because of humidity (moisture) still present even though "wiped clean".

No. the contacts of the leak sensor need to be closed. Sounds like the harness may have a short between the sensor wiring closing the circuit if a new main didnt correct it, and its dry at sensor.

 

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