While you wait for answers, we may have found some information which could help you.
Click here for Heating Hot Water Troubleshooting
How to fix my fireplace?
Vaillant ecotec 831 plus?
Greenstar 24Ri boiler, fast flashing - can I reset?
Worcester boiler dripping water?
Remove cover off gas boiler?
How do i stop the time from flashing on the Siemens RDJ100RF?