20 Most Recent Protech Systems FasNSeal FSWMKE4 4" Vent Kit for Wall Mounted Boilers & Wat Questions & Answers

check pump is running ok..if not replace it the pump, if pump is ok then u will need to descale boiler put in system by rad or if not combi then put in open vent tank make shure its the small tank also make shure the valve in tank is not stuck

electric boiler- or other ?

Vent unit to exterior wall. 10ft from any window or door

ideal icos H1 fault FLOW THERMISTOR part number 170917 check wiring to flow thermistor NOT loose first

ideal icos H1 fault flow thermistor part number 170917 i would check the wiring is secure to the thermistor first

What is the make and model of the boiler?

Any other symptoms? Is the fault apparent only when drawing hot water? Does the boiler re-light later? Alarm messages? F1? F3 for example?It may well need a powerflush, but it's best to find out before spending big money with BG.....wish I could get away with charging that much for a flush!!!FYV

sludge in the rads sytem nees to be flushed out this can done by a company or drain down system and remove rads and flush out with hose

Hello,You need to install a domestic/high pressure extrol/expansion tank on your cold water pipe.Should slove noise.

You likely have a flame sensor problem.

If you can wath the ignition proccess, see if you ever notice a flame. If yes, and it then shuts downm, you have a flame sensor failure, replace the sensor and clean the flame burners and orifices.

If no flame at all, then your ignitor is failing, or you are not gatting gas to the ignitor.

more info req

eiter you have a faulty filling loop or presure gauge,i asume you know how to put water in?

1/overheat stat2/ fan 3/ diaphrapm valve 4/micro switch check small rubber or nylon hose at fan for pinhole best of luck

Sludge / furring possible in primary part but not if the ch & flow through hot tap are ok More likely it's the diverter valve. The rubber diaphragm inside is perished / holed. Replace

Vokera will send in post if requested