Glowworm Cxi Dripping Water

I was called by a customer to look at a Glowworm Cxi which intermittently would have water dripping from underneath. The customer had a bowl underneath the boiler and pointed to the corner of the case on the front left at the bottom and had seen water dripping from there.

I looked around the bottom of the boiler and could not see any signs of water on any of the joints or at the disconnector. I opened the case of the boiler to see if there was any signs of water inside the case. I could see some brown staining on the 'floor' of the inner case and it ran across from the front left corner to the condense trap. There was a couple of droplets sitting on top of the condense trap.

I checked the route of the condense pipe which ran into the waste pipework below the kitchen sink. Fortunately it was connected using threaded fittings and so I was able to disconnect the condense pipe from the waste pipe easily. Sure enough it was full of gunge due to the way it had been connected in under the sink, waste had been slowly accumulating in the condense pipe before blocking it up. I managed to get a fair amount out into a bowl. Leaving the condense disconnected I poured a little water into the inner flue using a jug which flushed through the condense pipe.

During the summer their probably was not a great deal of condensate produced with just the hot water in use. However, turning the heating on revealed the problem as the amount of condensate would be increased.

This has solved the leak in the short term but have advised the customer to have the drainage altered to prevent the condense from blocking again because it could cause more expensive damage.

Disclaimer: The works described in this blog are a record of work undertaken and should not be taken as guaranteed to solve your problem. Work should only be carried out by persons qualified and competent to do so.