Bosch Dryers - Page 5 - Recent Questions, Troubleshooting & Support

Sensor for lint filter

Simple answer: way too much dryer lint. Worth cleaning out.

Sounds like the heating element. Most dryers have a fin element on the back of the unit. This warms the air as it is drawn past it. If the filter is clogged and not enough air gets to the heater they can burn out very quickly. Also, they can just burn out with age. There is most likely a non resetable overheat stat as well. You can test these with a multimeter (bell test, continuity check) easily. These parts will be easy to purchase and easy to replace with a little diy knowledge

Suggest turn to trouble shoot section in owners manual and follow the steps. Owners manuals are available online.

Lint has built up around the internal components...you need to open it up and remove any evidence of lint.....check for burnt can bles and or failing element..replace...but always disconnect electrics before anything!

Likely the "door closed" sensor. Dryers won't operate without the door being secured

Gas appliances often have a gas controlling solenoid valve. This will hum if the armature does not fully close, or if something becomes mechanically loose on the solenoid. I have had both faults at various times with a gas heater (which is the same thing as a dryer but without a rotating drum!)Can also hum at mains frequency if it is seeing a too low voltage, and the armature is partially releasing each half cycle. Some (but not many) appliances use a DC solenoid, and a little bridge rectifier and capacitor to smooth the resultant DC. If the capacitor fails you will also get hum. That is a 20 cent fix once you prise open any encapsulation of the rectifier/capacitor assembly. Watch out though, solenoids can be low voltage and isolated from mains, or use mains voltage coils...ouchh + dea.h. (Weird - the forum blocks the word for mortality for some reason)Whatever, I lay odds it is something to do with the solenoid and you will have an easy diagnosis and an easy fix once you can get close enough to the solenoid.CAVEAT: Unless you are familiar with the terms I have used please get someone who is electronically aware to assist you.

Normally you open these from the top screws at the back undo slide the top off and you can get access to the switch to replace

Customer service

Possible bad door switch or thermal fuse

LOTS of fault codes here, but NO "E90" BOSCH Side by Side Refrigerator Error Fault Codes Error Codes Then there is this: "Most of the times when the F:09 Error code apears on a Bosh Dryer is due to the thermal cut off being triggered, you can correct this issue by simply disconnecting the power to the unit and removing the back panel of the machine where you will find the button to be red. simply press it in and test the unit... if this doesn't resolve the issue, most likely your belt snapped off and would need to be replaced." My Bosch dryer has error code 09 What does that mean And if THAT is not enough, WATCH THIS! Bosch Condensing Dryer F09 Error Anthony

Did you check this FIXYA LINK below? Appears to have lot's of answers! Also I WATCHED the YOUTUBE video I recommended and NOTICED his DRIVE BELT is WAY too loose! Methinks THAT is why his dryer has problems! Be SURE your belt is not to aged because they can STRETCH and then TRIP the "RESET SWITCH" he's talking about. Note the way his PULLEY shakes so violently... AND the action of the belt itself... 20 Most Recent Bosch Nexxt 500 Dryer Questions Answers Here is another Link! Bosch Dryer Won Heat 3 min FIX And yet another! Bosch Dryer Won Heat 3 min FIX (DON'T waste your time with the FOUR oval Links to the right! )

Make sure you turn the dryer at low temperature. If it is still hot with low temperature setting, the temperature control may not be working.

After using it a while? If the door is being opened and shut again, you need to hear a click as it shuts, confirming the electrical circuit is completed. No click, no work. If you press the start button and the machine hums but does not start, the start button is NOT the problem. If you press it and hear nothing, this suggests a defective start button. (Bear in mind the door has to be shut for it to work.) If the problem is the main circuit board is frying, you can inspect it for signs of burning but actually testing it is difficult. Be sure vents are clear.

make sure the vent hose is clean and not kinked.clean the lint screen EVERY load! also check the seal around the door.