Dryer will heat for awhile and then shut off, requiring resetting the reset button.

Sensor for lint filter

Taken from the following: https://www.wascomat.net/pdfs/487032981.pdf
This is for a different model, but the codes are likely the same.
It is related to non-ignition of gas. You may need to switch on your gas supply, or service your ignition coil.

Resetting gas error
When the ignition control fails to detect a flame a error code E14 is displayed. When this condition occurs, the gas valve is shut off and the ignition control must be reset manually.

Resetting
Open the operating panel and press the gas reset button on the back of the user module board for one second.
See the picture of the gas reset button section 21
NOTE! When resetting the system the dryer must operate on a program with heat and when the heat indicator is on.

Error code
Error code 14 is a normal occurrence when first starting up a dryer, since air in the gas line must be purged.

Open the front panel, remove heat exchanger and clean. also clean out lint tray. this might help a little. Now lets check if the thermal sensor or heating element needs to be replaced.
Unplug the dryer. remove the panel in the back of the dryer that covers the heating element. ( the inner panel). On top of the heating element you will see a thermal sensor with a small red button on it. Thats the manual reset button. To test if the heating element is working properly you can disconnect the wires from the sensor and clip the connectors together . Plug the dryer back in and start it. pay attention to the heating element. It should begin to glow shortly. if it doesn't then your heating element is bad and needs to be replaced.

Unplug the dryer. Connect the wires back to the thermal sensor. Plug the dryer back in. Before you start the dryer, press the red button on the thermal sensor. Start the dryer. If the heating element doesn't come on and dryer doesn't heat, then you need to replace that sensor.

Hello, Welcome to FixYa.

There are a couple of scenarios which may prevent the dryer from starting with Bosch. I'm not sure which reset you activated, there are two which could be reset, plus a no reset hi-limit ( on the lint housing )... i.e. ...which cannot be reset, but the hi-limit is the one related to heating...located on the heater housing and the emergency shut off is by the motor.
Anyway,

To save time and back and forth dialog, I`ll mention the most likely and what to do about it.

**Unplug the dryer before attempting any repair tips suggested here please...safety first**

There is an auto shut off or emergency kill switch next to the motor I alluded to which will prevent it to start in the event it was tripped for whatever reason. This is the most likely scenario in my opinion as it often happens to even trained techs when the unit is re-assembled. This will require you to remove the back panel again though. Once you've remove the rear panel, It will look like this image below and all you need to do is push it to the right ( from the back )...

i.e.

Since you`ve already taken the back of the dryer off before to gain access you should have no problem.
Either Scenario I alluded to will require the removal of that panel so let me know if you require further assistance to do this.

The other would be resetting the hi-limit cut out, I suspect this is the one you reset ?...correct me if I'm wrong. You can see through the back vent opening when the vent is removed and then by pushing the red button in...shown below.

i.e.



Keep me posted how you make out or if anything is not clear.


Thanks for choosing FixYa and good luck.

Regards,

Macmarkus :)

Have you cleaned the exit hose thoroughly? Pulled the exhaust line and cleaned?
Thermostat controls heat. There is also a motor centrifugal switch, in the element circuit, that the motor closes to insure the motor is turning. Try another heat setting. There is more than one thermostat. You may have blown the 'thermal fuse' too, which requires replacement. The element has a contact in the 'timer' circuit too.
It is possible that your element has failed also.

Tripped high limit. Must clean the lint filter and the exhaust vent tube and all the way in to the dryer. Hot air exit is restricted.


If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Hi, this is a simple issue here. these switches will fail from time to time. the start switch is unable to hold the circuit, in return, opening it upon release of the button.

Simply replacing the switch will fix this issue. switch is 20 dollars tops.

Probably is no reset button on/in the dryer. Go here for more info on no heat in the dryer: Dryer Repair Help


www.RepairClinic.com

it seem like your motor could be faulty (overheating) causing the thermal overload to open, stopping the motor after awhile it will cool down and the thermal will reset, if this the case the bearings or the windings could be faulty

I had the same problem. Turns out the reset button on the back of the dryer needs to be pushed; when you push the reset button you should hear a click. If you do not hear a click the problem was probably not the reset button. The button shuts down the dryer heating elements if they are getting too hot and also keeps the drum from turning unless the start button is held down.

If you push the reset button and the dryer starts to work again, I strongly recommend that you stop the dryer and investigate why the heater elements overheated. In my case there was lint/hair build up on the heater elements themselves. Extensive dryer disassembly is required to properly clean the heating elements but it is worth the prevention of a house fire. While you're at it, clean the rest of the machine and the duct work.

Hope this helps

It is probably a thermal fuse. Take off the back of the dryer and you will see it on the lint outlet tube. It is white and is 1/2 inches wide and 2 inches long. It has two leads coming out hooked to wires. To check it just pull one of the leads off, turn on the dryer and touch the wire you took off to the other one and the burner should come on. It costs $12 at a parts store.