When I put on CH+HW the boiler fires up, reaches its temperature and cuts out and then only sometimes fires up again when the temp falls.
It will fire up again and stay lit for a while if I turn a hot tap on, but again it fails to relight when the temp has fallen back. I'm up and down at the moment turning a hot tap on to get it to refire.
Any idea on what the fault is likeliest to be?
Thanks.
It will fire up again and stay lit for a while if I turn a hot tap on, but again it fails to relight when the temp has fallen back. I'm up and down at the moment turning a hot tap on to get it to refire.
Any idea on what the fault is likeliest to be?
Thanks.