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Samsung DV405 gas dryer has power but won’t start

I have completely taken the dryer apart and tested continuity of the components. I can’t find anything wrong.

There are two possible things I need to follow up on. I’m not sure how to test the start switch, as it’s soldered to a circuit board. And the gas valve does not have continuity, but I’m not sure if it’s supposed to. From what I have read, if this part went bad it seems like the symptoms would be different.

Risposto! Visualizza la risposta Anch'io ho questo problema

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Soluzione Prescelta

For anyone in the same situation, I tried every suggested fix related to my symptoms and nothing worked. I took every single component out of the dryer and tested them each individually.

The last thing I tested was a tiny fuse-looking thing, part #PTS17S, the high limit thermostat. This part had no continuity, so I looked it up. It turns out that this thermostat trips sometimes and instead of buying a new one, all you need to do is whack it really hard with a screwdriver or smack it down hard on a table to reset it. I thought this was crazy, but as soon as I took a screwdriver to it, I had continuity!

I reassembled the dryer and, presto! I have a working machine once again.

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Hi @asummerends505 ,

Hopefully it will still function OK if it ever has to.

After all it is a safety device.

Good luck!

da

Ok, I'm going to try this-----, will let you know. I mean it is only 3 years old.

da

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Risposta Più Utile

Cause 1

Thermal Fuse

The thermal fuse is a safety device designed to protect the dryer from overheating. The fuse is located on the blower housing or at the dryer’s heat source such as the heating element on electric dryers or at the burner on gas models. The fuse should be closed for continuity meaning it has a continuous electrical path through it when good. If overheated the fuse will have no continuity meaning the electrical path is broken and the fuse has blown. A multimeter can be used to test it for continuity. Be aware that a blown thermal fuse is an indication of a restricted exhaust vent from the dryer to the outside. Always check the dryer venting when replacing a blown thermal fuse.

Cause 2

Start Switch

To determine if the start switch is defective, attempt to start the dryer. If the dryer hums but does not start, the start switch is not at fault. If the dryer does not respond or make any noise, the start switch could be at fault. Use a multimeter to test the start switch for continuity. If the switch does not have continuity, replace it.

Cause 3

Door Switch

The door switch activates when the dryer door is closed. On most dryers, the door switch makes an audible clicking sound when it activates. To determine if the door switch is working, try starting your dryer and then listen for the “click.” If the door switch makes a clicking sound, it is probably not defective. If you don’t hear a click, use a multimeter to use the door switch for continuity. If the switch does not have continuity, replace it.

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Epop sarà eternamente grato.
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