1

My Glow Worm Micron 50FF boiler's pressure was yesterday reading at a pressure of 1 (mbar or PSI -- not sure which) but the red fixed line shows as 2. I had a look in the manual and it suggested that it should be at 2 too.

So, I did what I thought was right an twisted the red know next to the pressure gauge to increase the pressure but it seemed to drop (now a 0.9).

How do you increase the pressure in one of these systems (we haven't lived here long)?

We have:

  • Glow Worm Micron 50FF
  • Gledhill SysteMate 2000

Pictures of the components of our system:

The red knob, gauge and what appears to be a drainage tap.

The red knob, gauge and what appears to be a drainage tap.


The whole SysteMate 2000.

The whole SysteMate 2000.


Small tank on top of the SysteMate 2000.

Small tank on top of the SysteMate 2000.


SysteMate 2000 instructions label.

SysteMate 2000 instructions label.


Lozenge shaped tank above other tank and SysteMate 2000


Valve / tap on tank.

Valve / tap on tank.


Any help would be much appreciated.

  • If turning the knob made the pressure decrease did you reverse the turn and see if it increased? How is the water level? – Ed Beal Nov 21 '18 at 20:18
0

The red knob might be for setting a pressure relief valve rather than for a filling loop valve.

I have the same boiler on a pressurised loop, it is pressurised as needed by opening an adjacent quarter-turn ball-valve (an "appliance valve", with a short blue lever) permanently plumbed to cold mains supply.

Your setup may differ, I'd try to find how mains supply is connected, it may need you to connect a temporary hose somewhere.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.