Bosch washer dryer not finishing drying cycle

[Amar S]

Hi All. Apologies for the n00b terminology in advance. This is my first post.

I have a 6 year old WVD245S3GB bosch washer dryer. There is no problem with the washing cycle, however when the dryer cycle is started (eg auto dry for 2hrs) it pauses after 4 minutes and the door lock gets released but the timer stays at 1.56

I looked on the forum troubleshooting guide and I am not sure if this is a problem with the TOC (not entirely sure what that does) or the thermostats. Most of the engineers are looking for a large call out fee and I read somewhere that if it is a fault with the main board it may not be worth repairing. Has anyone heard of a similar issue before? Thanks in advance 

[Amar S]

Sorry I should also mention that no error codes come up on the machine. I also checked the drain filter and there is nothing stuck inside

[Whitegoodshelp]

With it sticking on a time and not producing an error code it might be complex or expensive to fix (eg PCB). Sorry I can't be more helpful. Sometimes they can have weird causes but most component faults will produce an error code.