puma 80 nightmare
- Thread starter yodaboda
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hi all
have asked my gas man to help me to describe the different checks which have been made as he will be better able to describe them than myself
the diverter valve was changed and was fine, checked resistance of NTC at all temperatures and it was fine DHW microswtch is making and breaking when hot water tap comes on and the red light on PCB comes on and off as it should modulation board was taken out and visually inspected it seemed perfect, however watching modulation board relays whilst turning water on and off and when attemping to put heating on relay 3 was not moving at all
there seems to be lots of magnatite in system however no evidence of any blockages in both sides of the crossflow heat exchager
when lockout occurs boiler has definatly not overheated
any further ideas appreciated
have asked my gas man to help me to describe the different checks which have been made as he will be better able to describe them than myself
the diverter valve was changed and was fine, checked resistance of NTC at all temperatures and it was fine DHW microswtch is making and breaking when hot water tap comes on and the red light on PCB comes on and off as it should modulation board was taken out and visually inspected it seemed perfect, however watching modulation board relays whilst turning water on and off and when attemping to put heating on relay 3 was not moving at all
there seems to be lots of magnatite in system however no evidence of any blockages in both sides of the crossflow heat exchager
when lockout occurs boiler has definatly not overheated
any further ideas appreciated
new diverter valve fitted which has made no difference it obviously wasnt the problem (as some of you rightly told me it wouldnt be) further tests carried out and as all the parts tested are working wondering whether it might be an electric fault although the fault finding guide doesn,t point to it and am getting to the stage where considering replacing boiler as not prepared to have anymore parts changed because it might be whats causing it.
if any one has any other thought would be very grateful
thanks again for all your time and help
if any one has any other thought would be very grateful
thanks again for all your time and help
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Are you telling us that another new diverter valve has been fitted during the last week even though we told you it was not the problem?
We did ask you to check if the red light came on when it overheated, you have not told us. ???
If the boiler is banging then it REALLY is overheating and the o/h stat is correctly tripping it.
We have told you over and over again that its likely to be the DHW switch yet you seem to be locked onto your existing engineer who appears to be unable to diagnose the fault. I hope you are not paying him for his ineffective work or any new diverter which was not required!
You have never said where you are, its always possible that you are close to Chris in SW London.
Tony Glazier
We did ask you to check if the red light came on when it overheated, you have not told us. ???
If the boiler is banging then it REALLY is overheating and the o/h stat is correctly tripping it.
We have told you over and over again that its likely to be the DHW switch yet you seem to be locked onto your existing engineer who appears to be unable to diagnose the fault. I hope you are not paying him for his ineffective work or any new diverter which was not required!
You have never said where you are, its always possible that you are close to Chris in SW London.
Tony Glazier
Hi Tony
sorry i will try to explain more clearly on central heating mode the boiler locks out aprox 30 seconds after it has been put on, the red light is not on when this happens
I am unable to tell whether the red light comes on when it overheats (ie steam and knockin) as this is quite sporadic and as yet i have not been present when it has behaved in this way to check if the red light comes on or not. boiler appears to work normally in hot water mode and as mentioned the red light comes on and off normally when hot water is switched on and off
I was not charged for the diverter valve being replaced
I am based in Kilburn NW6
thanks
sorry i will try to explain more clearly on central heating mode the boiler locks out aprox 30 seconds after it has been put on, the red light is not on when this happens
I am unable to tell whether the red light comes on when it overheats (ie steam and knockin) as this is quite sporadic and as yet i have not been present when it has behaved in this way to check if the red light comes on or not. boiler appears to work normally in hot water mode and as mentioned the red light comes on and off normally when hot water is switched on and off
I was not charged for the diverter valve being replaced
I am based in Kilburn NW6
thanks
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Tony could prollylean out of his window and fix it from there ...
- Joined
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emailed ...
Hi
have been away a couple of days and seems like the elves have been as boiler now appears to be working perfectly central heating comes on as normal I have no idea why but will keep you posted
good to know that you are local Tony, as you seem to consistently be on the ball with your answers throughout the forum, presumably I can find your number in the yellow pages should the need arise?
didnt know kilburn bridge had reopened about bloody time
have been away a couple of days and seems like the elves have been as boiler now appears to be working perfectly central heating comes on as normal I have no idea why but will keep you posted
good to know that you are local Tony, as you seem to consistently be on the ball with your answers throughout the forum, presumably I can find your number in the yellow pages should the need arise?
didnt know kilburn bridge had reopened about bloody time
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And the A41 in Hendon closed to compensate ...
November the 5th has arrived early this year
November the 5th has arrived early this year
Marths says the fire is out now but as usual they are not in a hurry to reopen the road.
Interestingly they seemed to have much larger hoses than normal. 100 mm or 150 mm. I have only seen 50-60 mm before.
Tony
Interestingly they seemed to have much larger hoses than normal. 100 mm or 150 mm. I have only seen 50-60 mm before.
Tony
Bit of an update!
The fire was in a nearly finished block of new flats of about 150 units and was getting going when Martha passed at 4 pm.
I am pleased to say that all the plumbers escaped OK !
The construction of the flats was all WOOD to a height of about 7 floors. I have been watching them being constructed and I have told friends that I would not even be prepared to work in them let alone consider living there on account of the fire risk.
I am very pleased that they have burnt down now because had it been October they would have been occupied and hundreds could have been killed.
Hopefully the Head of Building Control at Barnet Council should now resign being thankful that no one died following such a terrible mistake in giving approval to a wooden structure over two floors tall.
The fire at Alexandra Palace about 1987 was caused by welding work. I had a drink in the Palace Bar there the evening before!
Tony
BBC news report and heli photo:-
http://news.bbc.co.uk/2/hi/uk_news/england/london/5173808.stm
The fire was in a nearly finished block of new flats of about 150 units and was getting going when Martha passed at 4 pm.
I am pleased to say that all the plumbers escaped OK !
The construction of the flats was all WOOD to a height of about 7 floors. I have been watching them being constructed and I have told friends that I would not even be prepared to work in them let alone consider living there on account of the fire risk.
I am very pleased that they have burnt down now because had it been October they would have been occupied and hundreds could have been killed.
Hopefully the Head of Building Control at Barnet Council should now resign being thankful that no one died following such a terrible mistake in giving approval to a wooden structure over two floors tall.
The fire at Alexandra Palace about 1987 was caused by welding work. I had a drink in the Palace Bar there the evening before!
Tony
BBC news report and heli photo:-
http://news.bbc.co.uk/2/hi/uk_news/england/london/5173808.stm
A new eco- friendly timber development next to me is going through planning (Southwark council). All this sustainable wood nonsense (probably being shipped half way round the world).
Developers forgot to mention the unusual type of clay we're on and the hundreds of tons of concrete and pilling that will be needed. But Ken likes sustainable, he is easily persuaded and doesn't waste time with small details.
Developers forgot to mention the unusual type of clay we're on and the hundreds of tons of concrete and pilling that will be needed. But Ken likes sustainable, he is easily persuaded and doesn't waste time with small details.
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