boilermate 2000, dhw working fine but no heating

hi, i have boilermate 2000, dhw working fine but no heating. the three grenn lights on acb are continuosly on indicating pump is running. but pump has no power coming into it. the digital disply is also not working. Does the pcb need changing? if so which one do i need gt 155-40 or gt 155-29?
thanks for your help

caprimob wrote:hi, i have boilermate 2000, dhw working fine but no heating. the three grenn lights on acb are continuosly on indicating pump is running. but pump has no power coming into it. the digital disply is also not working. Does the pcb need changing? if so which one do i need gt 155-40 or gt 155-29?
thanks for your help

sounds like the pcb, is yours with a switch electric backup boiler? if yes , there could be also a fault with the switch pcb. GT155/29 should do the trick if this is only the main pcb ( non switch model) regards Mario at Marios Boiler Service , Hampshire

Thank you for your help