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which model was that on tony as a matter of interest that sounds like poor diagnosis tbh tony. All combi s do not work the same. the junior will light for a split second then fail if there is a water press problem. it has probably dragged gunk into the microswitch when re filled

Poss the low water press switch which you cant do much about, time to call a rgi

You need to purge oil through the oil pump, have you any knowledge of the boiler or tools ? What boiler/burner is it ?

If you take a feed from a 10mm rad feed you ll have probs. You ll have to turn the existing rad valve down to get the rad hot. Take the new run from the existing flow/return 22mm and come down to 15mm and/or 10mm - proper job

Worcester all day long, but the truth is installers all have their own favourites Viessman haven't got an established back up if things go wrong. Good luck

check the fuse on the pcb ??

if you ve got the slightest bit of water on the flame rec connection or the strip pin connector on the board it wont rectify, just keeps soarking then locking out! get the hairdryer out if this is the case! i do these in about 40 mins :D

If a worcester approved fitter does the job, you will get a 7 or 8 year warranty with them depending on whether he fits a filter. If your isar gave you so much trouble surprised youd go for them again. Viessman were the talk on here a while ago, they ve had probs, the current vogue is...

It wont give you hot water for 15 mins its in test mode because its pushing it around your heating system. If you have changed the batteries in the stat, then it is probs duff pal :(

Press and hold that chimney sweep button for 10 secs until it is illuminated. You will get heat for 15 mins then, think you ll find your remote stat is duff, it is either faulty or needs batteries

theres not a lot you can do other than check pressure. your problem is either fan pcb or air press switch pcb retails at about£200, so i would get someone out who will get the diagnosis right because an aps is about £30 worcester do a fixed repair including parts (£250) so dont pay...

im with comp, turn power off then back on and see if the "stepper" or div valve on the r/h/s/ goes up and down and tests itsself. if it doesn t pop it out then turn power off and on then replace.

the WB comes with a 5 yr warranty or 7/8 yrs if fitted by a wb accredited installer. i ve fitted a lot, nice boiler no probs as yet

could be the fan failing

your a right little tinkerbell :lol: not a clue but throw parts left right and centre at your boiler! if i was you i'd probably buy a really good quilt! seriously your quasithermatink valve has probably gone, time to get a qualified engineer in !

the cdi has become the cdi classic, only diff really is no transformer, so it is still very much in production. the cdi compact is a new one which is smaller and very different to the classic both excellent boilers imo and as dan says a bit better than the i and si

think you are wrong about warranties, if bg fit a worcester then the warranty is with worcester, many of their models offer 5 years. if you left bg a yr after fitting the boiler, worcester would I guarantee honour the warranty. bg do good professional installs as well and before you say...

these are "hep 2 o" i use them, very good product imo

if you want to kill yourself go right ahead you clown! fitting a flue yourself is stupid! why not go the whole hog, fit a 2nd hand flueless fire and a new gas valve! ffs

no pal, i just get a list of all the forums, are you back in?