A
abbeyhouse
Hi,
Thanks for taking your time to read my plea for help (it’s a bit long)!
My boiler a 12 year old Potterton Profile 80 NG seems to be playing around.
Just to put you in the picture here is my current set up (a novice description)
Boiler Potterton 80 NG
Santon PremierPlus PP170E Direct Unvented Hot Water Cylinder
Grundfos 15 60 water pump
20 radiators of various sizes and most have a TRV valves fitted
Independent thermostat in dining room (radiator in that room does not have a TRV fitted)
Most pipe work is 15mm – no micro bore.
System running pressure approx 2 bar
In the last few days I have been struggling with radiator temps throughout my home – and now intermittent main burner cut out resulting in lack of hot water and heating.
I’ll be honest I have no idea on what does what or how it does it – So I would be grateful for a to do check list to find out which way to go!
This is what I have done so far:-
Yesterday –
Turned off all radiators and one by one bled whole system forcing any air block around, eventually I did release some air in 2 of the upstairs radiators.
Opened all flow valves to full i.e. TRV number 5 and on 2 radiators fully open – closed return valves and opened ¾ turn.
Sat back and had a lovely balanced heat in the whole home with all radiators evenly heated. – Sorry forgot to say I also turned back flow valves to normal temp settings after roasting!
Today- Heating turned on this morning only to do an ok kind of job – probably around 17 degrees vice 21 set on thermostat. - Being still a little cold I placed the electronic timer on manual override and sat back waiting for heat –
To no real benefit – I noticed they went through a warming up and cooling down ceremony!
This evening – house radiators are warm and not like yesterday – I could barley place my hand upon.
Tonight I had very little hot water so confused I decided to watch the boiler –
I set the programmer to hot water only, watching I noticed the boiler fan cut in and after a couple of attempts light the pilot light then the main burner lit after a few more moments, the flow and return pipes were like warm. However after 8 minutes I noticed the main burner had cut out.
The pipes were warm but not hot – I checked the boiler thermometer and its set just below maximum.
Curious I reduced the boiler thermostat to 0 and then placed back to under max and after a few moments the fan cut in – pilot light lit and the main burner kicked back into action – think the burner had been out for about 3-4 mins.
Only a few min’s later we were back to square one ……
So I ran the hot water and it did feel up to temp so something must have been going on! – With this in mind I placed the central heating back – again the boiler kicked in after a couple of min's then low and behold the main burner cut out again!!!!
The flow pipe was hand holding hot and the return hand warming hot – if you know what I mean.
Just in case the automatic water valves were broken I set both to manual but still to no avail.
The boiler reset button on the bottom when pressed does kick start the main burner but only for a brief second during the pressing
So to put a conclusion on my problem I have a boiler that lights when it feels, luke warm (sometimes) radiators and hot water if I ask the boiler nicely!!!
Oh and another thing I noticed the pump does get rather hot – not that I know how hot it is suppose to be!
Any ideas greatly appreciated
Thanks for taking your time to read my plea for help (it’s a bit long)!
My boiler a 12 year old Potterton Profile 80 NG seems to be playing around.
Just to put you in the picture here is my current set up (a novice description)
Boiler Potterton 80 NG
Santon PremierPlus PP170E Direct Unvented Hot Water Cylinder
Grundfos 15 60 water pump
20 radiators of various sizes and most have a TRV valves fitted
Independent thermostat in dining room (radiator in that room does not have a TRV fitted)
Most pipe work is 15mm – no micro bore.
System running pressure approx 2 bar
In the last few days I have been struggling with radiator temps throughout my home – and now intermittent main burner cut out resulting in lack of hot water and heating.
I’ll be honest I have no idea on what does what or how it does it – So I would be grateful for a to do check list to find out which way to go!
This is what I have done so far:-
Yesterday –
Turned off all radiators and one by one bled whole system forcing any air block around, eventually I did release some air in 2 of the upstairs radiators.
Opened all flow valves to full i.e. TRV number 5 and on 2 radiators fully open – closed return valves and opened ¾ turn.
Sat back and had a lovely balanced heat in the whole home with all radiators evenly heated. – Sorry forgot to say I also turned back flow valves to normal temp settings after roasting!
Today- Heating turned on this morning only to do an ok kind of job – probably around 17 degrees vice 21 set on thermostat. - Being still a little cold I placed the electronic timer on manual override and sat back waiting for heat –
To no real benefit – I noticed they went through a warming up and cooling down ceremony!
This evening – house radiators are warm and not like yesterday – I could barley place my hand upon.
Tonight I had very little hot water so confused I decided to watch the boiler –
I set the programmer to hot water only, watching I noticed the boiler fan cut in and after a couple of attempts light the pilot light then the main burner lit after a few more moments, the flow and return pipes were like warm. However after 8 minutes I noticed the main burner had cut out.
The pipes were warm but not hot – I checked the boiler thermometer and its set just below maximum.
Curious I reduced the boiler thermostat to 0 and then placed back to under max and after a few moments the fan cut in – pilot light lit and the main burner kicked back into action – think the burner had been out for about 3-4 mins.
Only a few min’s later we were back to square one ……
So I ran the hot water and it did feel up to temp so something must have been going on! – With this in mind I placed the central heating back – again the boiler kicked in after a couple of min's then low and behold the main burner cut out again!!!!
The flow pipe was hand holding hot and the return hand warming hot – if you know what I mean.
Just in case the automatic water valves were broken I set both to manual but still to no avail.
The boiler reset button on the bottom when pressed does kick start the main burner but only for a brief second during the pressing
So to put a conclusion on my problem I have a boiler that lights when it feels, luke warm (sometimes) radiators and hot water if I ask the boiler nicely!!!
Oh and another thing I noticed the pump does get rather hot – not that I know how hot it is suppose to be!
Any ideas greatly appreciated