Central Heating Boiler Failure

Joined
10 Jan 2012
Messages
8
Reaction score
0
Location
Kent
Country
United Kingdom
I have a Potterton Flamingo 50S wall hung balanced flue gas boiler. The boiler fires up ok but after around 15 minutes of running the main burners cut out and the ignition pilot light also cuts out. I have no problem with relighting the pilot light and firing up the boiler again but it then shuts down again after the same period of running. The water is circulating around the heating system and the radiators start to warm before the boiler cuts out. The same thing happens to the boiler if I just have the hot water system on. I have stripped down and cleaned the circulating pump (fully pumped system) and this appears to be operating satisfactorily as do the two isolating valves. The gas control valve to the boiler was renewed in early 1994. Up until now the boiler has functioned very well considering its age. I have read through the Boiler Installation and Serving Manual to try and determine a reason for the problem but have had no luck.
Any suggestions as to why the boiler is failing after such a short time of running would be welcome.
 
Sponsored Links
possibly needs a service, has it had one in the last twelve months?
 
does a flamingo have overheat protection? (not seen one in months)
 
Sponsored Links
No overheat protection on these boilers and as the system starts to warm up then the boiler cuts out, I'd bet its a simple pilot / thermocouple fault and requires a good service to get it back to a reliable boiler.
 
Thanks for your replies and information. Yes it had a service approximately 10 months ago. I thought it could possibly be a overheat problem and interesting to hear that there is no overheat protection on these boilers. The boiler has done very well considering its age but do not want to replace it until my kitchen has been extended later this year. Any idea of cost if thermocouple needs replacing? Naturally I do not want to pay for expensive replacement parts as the boiler will eventually be replaced.
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top