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- 12 Dec 2017
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Can anyone help with advice please? had a WB Greenstar 37cdi fitted approx six years ago, had nothing but probs with it, lot's of new parts fitted - lot's of strong odours/smells coming from it
Recently pressure started fluctuating firstly going high - increasing over 2bar then dropping slightly, then rising again and then really dropped, boiler very noisy, wouldn't hold pressure and kept cutting out - advised to keep pressing re-set on boiler and keep it topped up, this was done for a few days until pipe leak found and fixed
Pressure now increasing up into red, with hot burning powdery soot smell throughout house, boiler temp still fluctuating and seems to take forever to increase - pressure can remain high with low boiler temperature.
All U9-U0 codes flashed then temp to 99 and back down again to late 60s/70s- can find no info on codes only to ring WB - rang and told heat exchanger, expansion vessel and PRV?
Does this mean the heat exchanger is frazzled? Does anyone know the length of guarantee on WB Primary Heat Exchangers
Initially kept being told it was sludge in system, considering the bulk of pipework was mainly new with new rads, new boiler fitted in different location I couldn't understand sludge?
Now I'm thinking limescale, build up, debris in the HE, passing through the system, and with the boiler possibly overheating with U codes this is causing the hot burning sooty smell throughout the house?
Any expert advice with suggestions/instructions how to correct would be much appreciated. Can't help but feel it's the HE frazzled and the only way to get rid of smell is to flush out full system and fit new boiler which breaks my heart.
I'm not a heating engineer/plumber or engineer minded, can't understand why the pressure was fluctuating to begin with (long time before leak) or whether the high pressure caused the leak? and then the low pressure caused it to keep stopping as not holding water if that makes sense?
Read more: https://www.diynot.com/diy/conversa...di-u9-code.33179/#message-40183#ixzz51At08Ffe
Recently pressure started fluctuating firstly going high - increasing over 2bar then dropping slightly, then rising again and then really dropped, boiler very noisy, wouldn't hold pressure and kept cutting out - advised to keep pressing re-set on boiler and keep it topped up, this was done for a few days until pipe leak found and fixed
Pressure now increasing up into red, with hot burning powdery soot smell throughout house, boiler temp still fluctuating and seems to take forever to increase - pressure can remain high with low boiler temperature.
All U9-U0 codes flashed then temp to 99 and back down again to late 60s/70s- can find no info on codes only to ring WB - rang and told heat exchanger, expansion vessel and PRV?
Does this mean the heat exchanger is frazzled? Does anyone know the length of guarantee on WB Primary Heat Exchangers
Initially kept being told it was sludge in system, considering the bulk of pipework was mainly new with new rads, new boiler fitted in different location I couldn't understand sludge?
Now I'm thinking limescale, build up, debris in the HE, passing through the system, and with the boiler possibly overheating with U codes this is causing the hot burning sooty smell throughout the house?
Any expert advice with suggestions/instructions how to correct would be much appreciated. Can't help but feel it's the HE frazzled and the only way to get rid of smell is to flush out full system and fit new boiler which breaks my heart.
I'm not a heating engineer/plumber or engineer minded, can't understand why the pressure was fluctuating to begin with (long time before leak) or whether the high pressure caused the leak? and then the low pressure caused it to keep stopping as not holding water if that makes sense?
Read more: https://www.diynot.com/diy/conversa...di-u9-code.33179/#message-40183#ixzz51At08Ffe
