Thanks for that. This is error code F04 which means theres no temperture rise on the rear NTC sensor.
Basically its a heating error code.
What you need to do is remove the metal heater cover on the back of the dryer and from there release the heater from the panel.
There you will see 3 thermostats on the top of the heater.
2 are a thermostat and the other is the NTC. The thermostats look the same so you will be able to see which is which.
You need to remove the thermostats and with a multi meter you need to test them.
If faulty then look in the center of the thermostat and you will see a tiny hole. Get a pin and push it down in there untill it clicks.
Then thats the thermostat reset.
Refit the thermostats and heater and then make sure the filter in the door is clear and the metal condenser unit is clean as well.
Then retry the dryer and fingers crossed this cures the fault from there.
Try that and see what happens and let me know.