Hi
Please can anyone suggest a solution to the following:

My hot water seems to be ok - radiators come on, hot water from taps at the sink and bath. But when I have a shower the hot water only lasts a minute or two and then turns cold and the 24SiII 'Lockout Indicator Lamp' starts flashing. I hold it down to reset, but the problem keeps recurring. System pressure is between 1 and 1.5
Cheers for any help...

Keith, March 2009

try running your shower without the head on and see if the boiler cuts out then,your shower head could be restricting hot,could also be blocked filters in shower or dodgy thermostat (if its thermostatic) in the shower,all restrict the hot coming through the boiler causing it to overheat.

billy, March 2009