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got a worcester 24i junior in my caravan, ch is working fine ,but have noticed that the hw is fluctuating , it starts cool as normal, then builds up to scalding hot then go from hot to cool and so on, ive replaced the thermistor, still the same i then removed the water turbine sensor and filter...

have been useing my combi for years without many major probs, but lately the pilot light has been going out after i run a bath or shower, its had new dhw sensor, ch sensor,couple of thermocouples, diverter valve and couple of micro switches. whats happening is after running hot water for 10...

please help, i have a worcester 9.24 combi, its about 15 years old, in very good nick, and had many a service with new parts. problem is ch works perfect, hw works perfect, but if the ch is on and you take a shower or run the bath, when bath or shower finishes the ch boiler is off, dont kick...