Bosch Tumble Dryer: Often stops at 3-4 minutes remaining

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boland

475 posts

Ultimate Geek

#302843 27-Dec-2022 16:59

Our Bosch Vented Tumble Dryer of about 4-5 years old has an issue I am not able to resolve. We mainly use it for towels, and it very often stops at 3-4 minutes remaining with an error that the filter is full.

I've cleared the filter many times, and also checked/cleaned the host. I've also cleaned the moisture sensor. There's not much more to clean according to the manual.

What else can this be? Any tips?

Bung

5433 posts

Uber Geek

Subscriber

#3014410 27-Dec-2022 18:08

Have you checked right through to the end of the vent pipe. Even with a lint filter in the dryer there will be a build up of fluff. If there's a screen at the end of the vent it could be blocked.

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boland

475 posts

Ultimate Geek

#3014420 27-Dec-2022 19:10

Bung: Have you checked right through to the end of the vent pipe. Even with a lint filter in the dryer there will be a build up of fluff. If there's a screen at the end of the vent it could be blocked.

Yes, cleaned all the way through :( It's a very short pipe without any screen.

BlackHand

124 posts

Master Geek

#3014466 28-Dec-2022 08:36

Not sure if this is related to your problem but I had a similar issue and it turned out that there is another "secret trap door" filter that you need to clean out now and again.... https://www.diynot.com/diy/threads/bosch-condenser-dryer-clean-container-secret-flap-door.248668/page-3

boland

475 posts

Ultimate Geek

#3014544 28-Dec-2022 12:25

BlackHand:

Not sure if this is related to your problem but I had a similar issue and it turned out that there is another "secret trap door" filter that you need to clean out now and again.... https://www.diynot.com/diy/threads/bosch-condenser-dryer-clean-container-secret-flap-door.248668/page-3

Thanks, but seems my model doesn't have that.

The odd thing is that it always stops at ~5 minutes remaining. It only happens with towels.

insane

3170 posts

Uber Geek

ID Verified

Trusted

#3014559 28-Dec-2022 13:14

Could it be overheating? Do you always dry the same number of towels straight out of the washing machine? Is the dryer in a small room where the vented air is recirculating and not able to escape?

What happens if you only dry 1?

boland

475 posts

Ultimate Geek

#3014560 28-Dec-2022 13:18

insane: Could it be overheating? Do you always dry the same number of towels straight out of the washing machine? Is the dryer in a small room where the vented air is recirculating and not able to escape?

What happens if you only dry 1?

Yeah drying straight out of the washing machine. It's vented to the outside.

If we dry smaller loads it works fine.

We never had this issue when it was brand new, it started happening after about 3 years. We do have new towels so that may not help, but still, it should be able to dry a full load of towels, right?

insane

3170 posts

Uber Geek

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Trusted

#3014566 28-Dec-2022 13:40

When you say 'full load', are you talking by volume or weight?

Are your wet towels possibly above the dryers rated maximum weight?

I know they work much much better if there is plenty of space for air to circulate around the clothes.

Bung

5433 posts

Uber Geek

Subscriber

#3014568 28-Dec-2022 13:47

Various forum posts refer to the lint filter, an air intake screen or a sensor getting coated with fabric softener. Even venting outside our old F&P used to leak fluff into the room through small gaps in the case until I sealed them. That built up in the intake. Have you searched on the model number?