Samsung DVE45R6100C Throwing HC (Overheat) code after possible flood

[QuickPuppy]

Model Number

DVE45R6100C

Brand

Samsung

Age

1-5 years

Just picked a 2020 Samsung DVE45R6100C. Previous owner said it was on a pedestal in his garage during Hurricane Ian. Said he had about a foot of water in the garage. Dryer had been throw HC (overheat) codes since.

I got it home, plugged it in and tried a cycle. It started up and seemed to run normally (Spun and blew hot air) for a few minutes, then gave the HC code and shut down. Since that initial run it will either do the same thing, or will give the HC code even before the heat portion of the cycle starts. (Meaning that it can't be overheating because the heater isn't running yet.)

I didn't notice any obvious until I took it apart and saw a faint line of lint all the way around the inside of the case about 14" high. (If it is a water line, it covered the motor, blower, belt tensioner, heater, etc.) All control boards are located well above that line at the top of the unit. Other than the faint line of lint, the unit was extremely clean. No obvious corrosion or other issues. All vent lines and filters are spotless.

I continuity tested the heater coils, thermal fuse and thermistor. All show continuity. The heater terminals are not shorted to the casing. Could any of these parts still be bad even though they seem to test as good?

I'm hoping that the control board is not the culprit. There are no obvious burned components on it.

So next troubleshooting question: I have my old LG DLEX3470 that has all lower parts (Motor, heater, sensors) in working order. Any idea if any of these, specifically the heater/sensor assembly might work in the Samsung, even if only as a test to see if the HC code disappears?

 

[Jake]

This is a newer model that I can't locate the service manual for as of yet.

Hopefully another tech or member that does have it, can shed some light on it for you and share it with you here.

 

[QuickPuppy]

Thanks

 

[Jake]

Your Welcome!

 

[QuickPuppy]

Anyone happen to have the service papers that would normally be behind the control panel. I suspect the previous owner took them out. :-(

 

[QuickPuppy]

I did find what appears to be a bad thermistor (on the back side of the blower housing). Seems to test as open. I had already ordered a new heater assembly with the other two sensors attached, so when installed, pretty much everything except the motor will be new on the bottom of the machine. if that doesn't work, I guess it is a control board issue.

 

[Jake]

Yes, that makes sense to me as well.

Thanks for the update!

Let us know how it goes when you get those parts replaced.

 

[QuickPuppy]

While waiting for the new parts to arrive, I retrofited the probe-style thermistor from my old dryer into the new one and it appears to run normally... at least it didn't throw any codes and dried a load of clothes.
Any idea if the motor would suffer any issues from being underwater for a day? I don't know what it is supposed to sound like, but to me it sounds a just a tad rough. It seems to run fine though. Ae there any bearings that could've rusted?

 

[Jake]

Any idea if the motor would suffer any issues from being underwater for a day? I don't know what it is supposed to sound like, but to me it sounds a just a tad rough. It seems to run fine though. Ae there any bearings that could've rusted?

Yes, it would suffer, there are bearings in it that will rust.

Here's the motor for your model: Assy Bracket Motor;bigbang DC96-00790G

Here's the complete motor assembly with video:
Samsung Motor DC93-00101N

 

[QuickPuppy]

Possible to just replace the bearings? Or will the motor from my old LG 3470 work?

 

[Jake]

Possible to just replace the bearings?

Not that I'm aware of.

Or will the motor from my old LG 3470 work?

If the motor part number is a exact match, that would work.