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saw an ideal classic the one that came after the nf,ff250 i think in a skip this morning and the cardboard packaging from new boiler next to it. sadly the packaging was for an ideal isar he 24. so sad.

not familar with these but. have you set switch in wiring center to bi-flow position?. usually the programmer needs 5 wires.to provide a hot water off supply. number 1 in programmer is hot water off and is usually wired into the wiring center.but as the wiring center has a pcb built into...

diaphgram can be changed but better to change complete diverter valve due to the fact that you need to remove complete valve to change diaphgram and one does not want to take these valves out to often. get worcester fixed price repair.

diverter valve usually,espically after 3 years or a lot of hot water.

worcester do a decent asortment of flue pipes and bends. you need a corgi engineer to visit you to survey the job,look at worcester web site for flue literature for your boiler.

photo of radiator/air valve would be helpfull,there could be a couple of options available.

take off white door on front of boiler,it lifts up and off. pressure instructions on back of this door. black cap could be a drain device,dont touch it !!!

send awb an email asking if they can supply part numbers,uk stockists or if they can send part from happy holland.

is there a pressure guage on the front of your powermax 155 ?

just put an offer in minus 6 grand

small jobs take longer time.

tee it some where else. is it a water pipe ?

prise pipe away from wall with wedges and use a jijsaw with a fine metal blade. take precautions ie water and electrics.

removed

yes and some trvs have a positive stop and need no cap,but to be 100% sure,i would cap off as i advised. yes i went to an insurance claim where a child undid the plastic cap on a drayton valve resulting in a scalding incident not to mention lots of property damage.

easy,unscrew trv tail in radiator,special tool may be req. get a half inch black iron cap from your local heating supplier, apply ptfe tape to thread on trv tail and screw cap onto it ,then fit back onto valve.

thanks for replys.i have seen a lot of negative coments here regarding isar boilers. not a good starting point i think.

i want to move house soon and have been looking at larger properties in the west london area. saw a nice house at a decent price just needs decoration. BUT has a new isar combi he30 linked to an unvented cylinder a boiler mate 2. the guy selling says that the combi just does the kitchen sink...