Timer getting stuck on Worcester Bosch

Timer getting stuck on Worcester Bosch

Timer getting stuck on Worcester Bosch

I have a Worcester Bosch Greenstar Junior 28i - and a few weeks ago the timer kept getting stuck after about 10/11 hours.

I changed the MT10 Timer but it is still happening, so wondering what the next step is to get it working properly?

by MarcMCFC1986

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