The previous answer is spot on. I have just had this problem with a 30cxi. The condensate pipe on mine runs to a proper ceramic soak-away as the boiler is installed in my basement, and the soak-away and pipe were frozen solid so the water just backed up into the boiler. I got out my girlfriends hairdryer to defrost the pipe, and now I have it just leading to a bucket until the weather warms up.
Phil Mansell
December 2010
If the weather is freezing, your condensate pipe is probably frozen. Unplug the condensate drain and drain into a bucket and the boiler should light. I had this problem with my Glow Worm 15HX and am leaving it dripping into a bucket until the weather warms up. If your condensate pipe isn't frozen, the condensate trap inside the boiler probably needs emptying. Again, I had this problem with my 1 year old boiler which I bought to avoid boiler breakdowns!!
Fellow Victim
December 2010
Automatic Answer
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