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The Low pressure light has come on when it is sitting at 1.5 bar. The HW LED is lit up on the modulator board aswell. This has just happened, when I tried the CH again. What does the wax capsule divertor valve look like? Thanks

My CH problem is: When CH is switched on the burner lights, the fan works, the pump works, then after about a minute the burner switches off and remains like that for about 3-5 minutes, then it repeats the cycle again. The HW is very hot when the tap is initially turned on, which is not normal...