Hi
I wonder if you cen help, I've got a problem with my central heating it will only come on when the hot water is switched on as well. It's a Potterton condenser boiler I think its fairly new, I've only just moved into the house so I can't really be sure.

Thanks

Steve

Sounds like a controler switch. The condensing boiler should heat with out a call for domestic hot water. Best to call for service.