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  1. H

    worcester cdi 28 - heating ok but hot water keeps cuting out

    Tony, The vertical flue pipe is correct I believe, it is definitely not a horizontal terminal. So, if effective length is 5.2m will your earlier suggestion of adjusting the APS help? Regards J
  2. H

    worcester cdi 28 - heating ok but hot water keeps cuting out

    Thanks Tony - Forgive my ignorance but what does APS stand for? Also, when you say further bends are 0.9m each - how is this mean't? To clarify - the flue exits the top of the boiler, elbows 90 to go through the wall, then after approx 400mm elbows right running horizontally for approx...
  3. H

    worcester cdi 28 - heating ok but hot water keeps cuting out

    Thanks all, I've done some digging (spoke to worestor technical department) and found out the following: 1. The max flue run for my configuration is 3.0m (mine may be slightly over this. 2. The red (tap) LED light flashes quickly, that is a sympton of an air fault. 3. The air inlet at...
  4. H

    worcester cdi 28 - heating ok but hot water keeps cuting out

    I am currently having some building work at home, extending my property. I have retained my existing boiler but the plumber had to extend the flue by approx 2.5m to exit the new lean to roof. It would be worth noting, before any work was undertaken the boiler worked fine. Now nearing the end...
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