hi newbie here so please go easy....
have a gloworm 30ci over 7 years old
hot water has been patchy CH is fine
had a couple of plumbers in who say it will be 600+ to repair n might as well get a new boiler installed 2000+
am a bit reluctant as apart from patchy hot water its been perfect
already seen posts here looks like possible heat exchanger issues
the pressure reads consistently high at 5.5 to 6.5 when CH on but when turning on hot water goes down to 1.3-1.5 as long as hot water is running
goes back up immediately when hot water switched off
hot water varies between cool(not cold) to luke warm to warm
also has a very slight knocking noise when DHW is switched off
some posts here suggest diverter valve probs but manual only has follwoing options -three way valve head or three way valve actuater or bypass valve
which is it please
here is a link to manual
http://www.solvgroup.com/uploaded_files/File/GLOW_WORM_30_&_35ci_UIS.pdf
also found the new plate heat exchanger for 110 £ online within 2 mins
got quoted 300+ to buy n labor extra
also do combis have 2 heat exchangers ie one for CH in closed loop and plate heat exchanger for DHW
thanks a lot in advance and apologies for long post but considering that i am asking for ur time to answer this i thot it would b best to give all possible info
have a gloworm 30ci over 7 years old
hot water has been patchy CH is fine
had a couple of plumbers in who say it will be 600+ to repair n might as well get a new boiler installed 2000+
am a bit reluctant as apart from patchy hot water its been perfect
already seen posts here looks like possible heat exchanger issues
the pressure reads consistently high at 5.5 to 6.5 when CH on but when turning on hot water goes down to 1.3-1.5 as long as hot water is running
goes back up immediately when hot water switched off
hot water varies between cool(not cold) to luke warm to warm
also has a very slight knocking noise when DHW is switched off
some posts here suggest diverter valve probs but manual only has follwoing options -three way valve head or three way valve actuater or bypass valve
which is it please
here is a link to manual
http://www.solvgroup.com/uploaded_files/File/GLOW_WORM_30_&_35ci_UIS.pdf
also found the new plate heat exchanger for 110 £ online within 2 mins
got quoted 300+ to buy n labor extra
also do combis have 2 heat exchangers ie one for CH in closed loop and plate heat exchanger for DHW
thanks a lot in advance and apologies for long post but considering that i am asking for ur time to answer this i thot it would b best to give all possible info