I have a problem with my central heating today. When the timer starts the Heating or Hot Water it trips the fuse box.
I have a Potterton EP2001 timer. If I press the Advance button on either the CH or HW the light comes on and then there's a 3-4 sec delay and then the 13amp socket fuse blows (it's not 13amp it's the fuse for the downstairs sockets)
Hence I have no heating - luckily I have an emersion too so I have hot water.
Should i be calling a heating engineer or electrician?
Simon