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Andrew Smith
Andrew Smith, Home Appliance Technician
Category: Appliance
Satisfied Customers: 3646
Experience:  Gas cooker specialist
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Anyone who can help answer a Potterton Commercial boiler question

Customer Question

Anyone who can help answer a Potterton Commercial boiler question on how I get the pressure up on the boiler?
Submitted: 3 years ago.
Category: Appliance
Expert:  Andrew Smith replied 3 years ago.
***** ***** : It depends if the gauge is on the boiler or on the pipework?
JACUSTOMER-u2z2cr8i- :

the gauge is on the boiler and i have drained the water from the same place that i am filling from, i can get the gauge to read 0.1bar it is a paramount 260

***** ***** : If it is a big system thaen it could take up to 15 minutes to fill and pressurise - what is happening when you fill/
JACUSTOMER-u2z2cr8i- :

i can hear that there is a flow going into the system and when i remove the filling loop and check that the system is actually taking water it looks/feels like it is at more than 0.1 bar directly underneath the boiler?

***** ***** : Perhaps the connection to the pressure gauge is blocked from crap in the system
***** ***** : are you asble to strip it out and check?
JACUSTOMER-u2z2cr8i- :

it is in the boiler so im not sure, i can go and check, will be back with reply in 5 mins

***** ***** : No problem, reply once you have checked
JACUSTOMER-u2z2cr8i- :

right, i drained the water out of the system (again) took the gauge out of the flow/return inside the boiler and cleaned, but dont thin k this is the problem-am currently filling again but am sure the gauge was not blocked

***** ***** : Perhaps you keep filling and see if it rises - if it is a big system it will take a while to get up to 1.5bar
JACUSTOMER-u2z2cr8i- :

ive been filling since 9 am this morning and tried yesterday for 4 hours with no luck, i cant understand why i only get 0.1 bar pressure when if there was a blockage i should still get the pressure to raise before the blockage? i have quite a strong mains feed and dont think that is the issue, i have lost the pressure that i have a couple of times by playing with the zone valve. i have reversed the procedure that i used to drain the system and do not understand why this isnt working?

***** ***** : Is the PRV only holding 0.1 bar?