DV42H5200GF (A3-01) Samsung Dryer - Instructions

Watched a video on utube, how to repair my 16 month old steam dryer. The hardest part was laying on my belly holding the spring loaded tensioner and slipping the belt on around the blower housing. Only cost me $23. Winning!

I ordered twice from this site. the thermistor was the first order, the fuse was the second order. Turns out the thermistor sent was the WRONG one. When I reassemble the dryer, after 20 minutes the thermistor sent burned up to a crispy chard. The ohms on the wrong part was 12ohms. per the dryer diagnostics the thermistor should have been =<1 ohm. I put in the original part and it worked. The fuse did the trick. the thermistor, not so much. Lesson to be learned is to not rely on this sites parts compatibility information. Look at the specs for your dryer from the manufacturer.

Dryer would not start but electronics were working.

Pulled top of dryer off; noticed the belt was loose but not broken.
Went in through the back (1 screw and removed the exhaust pipe/plate); noticed the wheel was broken and thus the belt had fallen off.

Ordered replacement wheel/arm.
One screw to remove old one, one screw to install new one...tentioned the belt. Dryer was good as new.

A month prior to this repair, I took the dryer apart, cleaned the clogged lint out, and replaced the thermistor with a cheap aftermarket part. It lasted a month. Bought this more expensive OEM thermistor, hopefully of a better quality. Realized that I could have gotten to the thermistor from the back by simply removing the vent pipe and carefully reaching through the vent pipe hole to take out the thermistor. Did that this time instead of taking everything apart. Also bought an updated lint screen (aftermarket part). It has better mesh although it doesn't fit quite as perfectly as the original. So we'll see if the OEM thermistor lasts longer. The repair time was mostly spent moving the washer and dryer within a fairly small laundry room. The air lifter really helps.

I removed the dryer vent and cover to take a look at the inside of unit. Then I saw that wheel on the pulley was damaged and belt was tangled up. I simply replaced the pulley and placed the belt back. Samsung advised that I replace the unit, but myself $800+ on a new unit.

I originally called a repair person to come out but that was a total waste of time and money. He removed the front of the dryer claimed there was a dryer sheet causing the problem and put it back together.
Never again!
I watched a youtube video for step by step instructions on how to take the dryer apart.
I took the front door of the dryer off, removed the filter cover and the dryer drum & belt. Removing this was simple and allowed me to see everything I was working on. With the new part in hand, I removed one wire at a time from the non working heat sensor and connected it to the new part. That way I was sure I had the right connections.
I then removed the thermostat making sure to put the new one back in place exactly as the old one.
I then put the drum back in place with the belt securely fastened. I put the cover back on the lint filter and placed the dryer door back on securing it in place. The dryer is now working perfectly. It takes longer to take the dryer apart than to replace the old parts.

This was a troubling exercise. Took apart the dryer covers and removed the drum. Removed the igniter and it had a crack through it. Checked with multimeter for continuity, and there was none. Took a picture of the original installation and sent away for part. Just mount and plug in….reassembled and works fine.

I had to take the whole thing apart to replace the drum wrapper. I followed this very helpful YouTube video for the step-by-step instructions on disassembly.

https://www.youtube.com/watch?v=9ul2BIvVEVU&t=428s

Once the new drum was installed, I followed the steps in reverse to put everything back together.

I removed the dryer top and saw that the belt was intact. (I had suspected the belt or something stuck in the exhaust fan or somewhere.) I watched a few youtube videos and took off the rest of the top plates and front door and inner structure that held the barrel. After i inspected and cleaned out the fan blades and exhaust areas, I looked at the pulley rollers (motor and idler rollers). The idler roller looked a little melted and chewed up. I replaced it with the new assembly. Also replaced the belt. Putting the barrel and new belt back on was harder for me than the videos indicated because the spring was very tight and the area to put my hands was small and didn't give me enough leverage. I eventually got someone to give me the third hand pulling the idling roller a little further over and the belt was back on. It didn't take me long to put the whole dryer back together. It is running fine now.

These are not instructions as much as warning that although it is a one-person job, the idler pulley assembly is not as easily manipulated with the barrel there. Doing the fix was straightforward: one screw holds it in place. The men in the videos seemed to have no problem with easily replacing the belt, but I needed help with the tight spring. Perhaps now that I've done it once, I could figure out how to reach around the barrel and yank the roller enough to replace the belt, but with the extra hand it took seconds and was super easy.

The design of my dryer is a bit different from the video on PartSelect - but it is very close. And if you watch the really good video on PartSelect plus a few others on Youtube you can figure out how Samsung in general designs the different components. You can fix this yourself definitely.

Cost of part to fix - about $50.
Repairman - didn't even ask. Would probably be $300-400.
Cost of replacement $1,000.

I rated the repair "A bit difficult" only because this is the first time I have ever repaired an appliance. If I were to repair this one again, I'd rate it as Easy.

I'm really thankful for the PartSelect video. This makes DIY repairs possible.

Thanks.

removed the top cover, remove control panel,remove door, remove belt assy, and pull out old drum and installed new drum. Used only a phillips screw driver and took approx. 30 min. Dryer is quit and drying better.

We unstacked our washer and dryer and needed dryer feet again.

Took off the back of the dryer and replaced the thermistor. A $7 part that would have been a couple hundred dollars if we had to call a repairman.