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WENT TO A JOB 2 WEEKS AGO & TRACED FAULTS TO NO CHARGE IN EXP VESSEL & SEIZED DIVERTER VALVE . FITTED OVERHAUL KIT & PUMPED UP VESSEL. all was ok. today cust phoned & said hot water not getting as hot as it used to. on checking boiler it seems that it is shutting down before the dhw is up to...

been to a 30 sxi today f9 fault. book o words says loose conns, iffy pump or faulty pressure sensor. boiler display says 2.4 bar system pressure. seperate pressure gauge reads the same. if i disconnect sensor conn then boiler display says 0 bar. when i re-connect it goes back to 2.4 bar. pump...

:?: had an ultimate 50ff which hadn't been used during the summer so the pilot jet was blocked. also heating hadn't worked for ages (bloke lives on his own & spends all spare time in pub i think.) cleaned pilot jet, replaced seized & corroded mid pos. turned boiler on for safety checks etc &...

am having a nightmare with a flexiflue. last month i replaced the pcb as it had burnt out. got a recon one from allspares in wembley. all was ok. got another call last week. the fan had seized & the cooling ring had come loose on the shaft. fitted a new fan. now the weird bit. the t/c would...

hot water fine but when heating switched on, loud banging & eventually lockout. pressure 1 bar. any pointers please? (pre condensing model)

i have the above boiler in a flat i let & the tennant complained about whining noises. i've had a listen & it happens after a hot water draw-off. goes on for about 2 mins & then peters out slowly. the fan is fine as is the pump. magnaclean fitted & a recent boiler off the wall to replace that...

:?: serviced a c40 keston friday. usual warped electrode ! all working ok as i finished, customer phoned me up today & said boiler stopped working & shows a B26 fault. this is low water pressure fault. as this is an open vented system, how can that happen,