We may have found other answers which could help you.
Click here for Combi Boiler Boiler Repair Hot WaterMain 24 Combie Boiler causing power trip of all power to home?
can I fit this myself or do I need to be gas safe engineer?
how to regulate gas?
Can I get the instructions to add more water to boiler pressure is just bel?
Why does my boiler keep switching on and off?
My Main 30HE loses pressure over 24 hour period?