Potterton Puma 80e, Low pressure lights on

[advmode]

Last night one of my radiators fell from the wall and bent/broke the "IN" pipe. Lots of water came out of it, but as the pressure went down it stopped leaking. I stupidly left the boiler ON overnight and late this morning it shut down by itself turning the low pressure lights ON.

I decided to get rid of this radiator so i went to a plumbing store and bought a pipe cutter and a connecting hose. Then i cut down the pipes both "inflow" and "outflow" and connected them with the hose at the spot where they were the closest to each other.

Then i went to the boiler and turned the water valve ON untill the pressure went up to 1.5 and i shut the valve. As i turn the boiler back ON, the low pressure lights are still ON, they don't go OFF. I tried turning the mains OFF and ON, reseting the boiler...

The pressure hasn't gone down, it's still in the same place so i assume there's no leaking. but the lights won't come OFF. Would they be turning OFF imediately after the pressure is back on or the system needs time?

i would like to hear some ideas before having to contact assistance. also to know what i might be dealing with.
Thanks!

 

[petit_pablo]

The low pressure switch will be blocked. You can unblock it fairly easily with a pin. Switch off boiler and Drain it first, locate the switch (near the back of boiler alongside the diverter valve). Remove wires, note where they went! Unscrew switch and unblock the small hole in the middle, a bit of water will squirt out. Wind some PTFE around the thread then screw back into boiler and ressemble. Fill system & bleed air.

 

[advmode]

Thanks, But i think i'm gonna need something a little more descriptive as i understand nothing of these things. Do I have to take the cover off to find this switch? How do i drain the boiler? Do i have to bleed the radiators afterwards?