While you wait for answers, we may have found some information which could help you.
Click here for Baxi Bermuda 401Replacing LP112 Programmer?
Ideal Classic no heating but have hot water?
Hot water but no central heating?
dmestic hot water near boiling point, howto adjust temperature?
How do I reprogram my ideal bolier rf thermostat receiver?
can i fix it honeywell st1000 ?