Recent content by pennib

Thanks Tony, Can I have ChrisR's and Gasguru contact numbers or email links please. Thanks everyone for all your assistance, its much appreciated Neil

Thanks Tony, You say, "The minimum gas rate setting is a long way out and needs a competent corgi to reset it. Only some can do that!" Can you suggest someone? London, Wandsworth SW18 Neil

On second thoughts I'am now not sure. The manual says there should be one, and there is this Hexagaonal Allen key with a c. clip below it. Is this it? The description part says " DHW Thermostat/Flow Limiter Assembly. So it must limit flow, but I can't turn this allen key. Can any one advise...

Hi Gasguru, Yes, how do I check that its sufficiently open? The manual says. "Note: if the by-pass flow is restricted too much this will cause the appliance to overheat and go to lockout". Which is what seems to be happening If I turn the hexagonal allen key anti clockwise on the DHW...

Hi Tony, Is the gas rate wrong? Neil

Thanks ChrisR, I have a metric gas meter, it uses 0.051 cubic meters every 2mins when CH is working, which is 16.371 Kw as per your calculation. I have timed the CH Return pipe getting hot at 3mins approx, but the radiators are not uniformly hot, in this time. I will have to double check...

Thanks Tony, Can you explain why the burner pressure is OK for the DHW but not for the CH. Are the minimum and maximum gas pressures the same for both systems? If so why will the DHW work but not the CH? Confused by Combi Neil

Thanks ChrisR, The red light on the Modulation Board comes on when DHW is demanded and goes off, promptly, when DHW is not. If i've understood your instructions correctly, please tell me if I have not. On the Permanent pilot gas valve there is a red and a black terminal for the Modulator...

Thanks ChrisR, The solder looks solid on the PCB. The Issue number is 05, WK/YR:43.06 I have looked at the back and it looks clean. If there is a hairline crack I would need a voltmeter, as per your suggestion. I do have a dusty analogue multimeter (rapitest 7040) What do I test?

Thanks Tony, I have turned the Potentiometer fully anticlockwise but it doesn't seem to have made any tangible difference to the length of time the boiler takes to lock-out, which is roughly 10 mins, when demanding CH (although this has varied, because it locked-out immediately yesterday). I...

Hi Tony, Good point. The £300 pounds I have spent has virtually given me a new boiler, and some knowledge of how those parts work and how to fit them. The Diverter valve and Expansion Vessel were 10 yrs old. The diverter valve was ready to be replaced and the expansion vessel was busted and...

Thanks Mick, I have tested the pump. I have undone the central screw and pulled it out so that it spins when the CH is switched on. I have drained the system separated the pump by undoing the 2 allen screws. The blade wheel spins freely and the motor works. Just before doing this I tested...

When I turn the CH on the boiler fires up and the rads heat-up nicely, after 15mins approx there is a little 'clunk' and the pilot light is switched off. This week because of this problem I have replaced the complete diverter valve and wax capsule assembly, water pressure switch, the CH...

Hi Tony, I have 2 Expansion Vessels for DHW and CH. I presume its the CH vessel as its the CH thats cutting out? Thanks Neil

Hi Tony, I have replaced the Diverter Valve Complete Assembly including the Wax Capsule Head, and the Central Heating Water Temp Sensor. The CH fires and the pressure guage (set to 1.1 bar) will climb until it reaches Bar 3-4 and then the boiler switches off, the pilot light is turned off...