How to put different Ideal boilers into service mode, chimney sweep mode or high and low fire, 

Very good .. keep it up

For the older logics you turn the dial slowly from just past e to maximum holding at maximum for 1 second then back to e for 1 second then back to maximum the trick is slow and steady. Not like the baxi which can be done quickly

Thanks for nice explanation

Thanks for the informative content, helped me pass my renewals. How do you do an fga if the boiler overheats and modulates down?

thanks Tomcat for sharing this. I had an ideal independent which I could not get in to service mode recently. following the MI it was similar to the ideal logic (turning back to 10clock etc) Luckily I was just servicing a friends boiler not a paying customer what do you suggest if you are out servicing and you struggle to get any particular boiler in to service mode when trying to gas rate / CPA ?

Why don't they tell you this in the MI's? Some manufacturers do, and some do not.

🤘😎🤘