Please help. We have turned our combi boiler to summer setting for hot water only. The hot water is behaving oddly. We find that sometimes we have to turn the hot tap off and on to jolt the boiler to put out hot water. Sometimes it can take three or four attempts. Because it does eventually come on we think it isn't the circuit board. Anyone know of an 
answer to this problem? It's a Bosch Worcester 24i rsf.
answer to this problem? It's a Bosch Worcester 24i rsf. 
