Recent content by ob1knbxtrail

I think the burner should modulate to maintain the max temp of 80C on HW only. What happens is boiler does go up to max 80C as on max power with HW demand but then shuts down completely till water flow cools to around 40. Then it tries to fire on max again, then shuts down as it hits 80C within...

Got aUltracom 30 hxi +Climpro RF + Weather sensor installed 1 week ago but have a problem in that the boiler does not modulate on HW only demand. Works fine on CH only. double checked wiring and can find no fault so am wondering if I have old S/W? Thanks

Just had a Ultracom 30 hxi installed with weather compensator, Climapro and Smart Wiring Centre. System works well when running on modulating burn on CH only but when it automatically goes to full burner power for HW demand, the burner cuts out after very short bursts.The temp indicator shows it...