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brianmacnamee
Hello im a newby that is getting pretty deperate wit an intermittent problem with my DHW and CH operating system.
It is a sealed system with 2 pressure gauges 1 on the fill loop and the other on the boiler and 2 two way valves one for the DHW and the other for the CH.
When operating the DHW andor the CH the pump sometimes roars as if there is air in the system with no particular pattern and it sometimes causes the boiler to cut out before attempting to re-ignite successfully before cutting out again and then reating process for 5 times before cutting out for 15 mins before starting again - sometimes with no probs - other times it repeats the roaring/cutting out.Also the system has to be topped up every month as the loop pressure can drop to below 1 bar so its losing pressure/water somewhere.
I also notice that sometimes the boiler press gauge reads zero although fill gauge reads 1.5 bar.
A couple of Heating engineers have investigated the problem and have changed the following items without success.
1.Pump
2.Auto air vent
3.Expansion Tank
4. both 2 way valves (DHW and CH).
All radiators have been bled numerous times but no air is apparent.
Really could do with some advise as bills mounting up and ther does not appear to be any Heating engineers in Norwich/Norfolk area in FIND a LOCAL PLUMBER section.
Regards B.Mac
i
It is a sealed system with 2 pressure gauges 1 on the fill loop and the other on the boiler and 2 two way valves one for the DHW and the other for the CH.
When operating the DHW andor the CH the pump sometimes roars as if there is air in the system with no particular pattern and it sometimes causes the boiler to cut out before attempting to re-ignite successfully before cutting out again and then reating process for 5 times before cutting out for 15 mins before starting again - sometimes with no probs - other times it repeats the roaring/cutting out.Also the system has to be topped up every month as the loop pressure can drop to below 1 bar so its losing pressure/water somewhere.
I also notice that sometimes the boiler press gauge reads zero although fill gauge reads 1.5 bar.
A couple of Heating engineers have investigated the problem and have changed the following items without success.
1.Pump
2.Auto air vent
3.Expansion Tank
4. both 2 way valves (DHW and CH).
All radiators have been bled numerous times but no air is apparent.
Really could do with some advise as bills mounting up and ther does not appear to be any Heating engineers in Norwich/Norfolk area in FIND a LOCAL PLUMBER section.
Regards B.Mac
i