I see the glow worm is a popular subject. My 50ff has the reset LED on constantly and the burner on LED is flashing. I don't have a manual because the 50ff was here when we moved in. Anybody have a clue what's going on?

Thanks.

Conor, January 2010

If you cant reset the boiler i am guessing this is the pcb it is continously flashing and if i un plug and plug back in it will work for 30 seconds

mike44, June 2011

I have the same problem, asked the Local Plumber, he says its the fan. Gave it a squirt of fire resistant oil (* Do Not Use WD40*), it worked, and it does need changing and the quick fix wont last forever maybe a month.

John Marshall, February 2011

if the flashing light is flashing slowly its a software error
if its flashing fast its a ignition lock out
you can down load a manual on the glow worm website

Ray Mallon, February 2011

Hi there looking for any help. My glow worm micron 50ff working fine this morning heating came on as usual tonight didn't switch on. When looking at the boiler unit itself you can hear the noise as if its on but the reset and burner light are both flashing. Help!!

Lctwinmummy, October 2010

Hi there,

it seems this is a common problem as my 50FF has started to do this also. The reset button is constant and the burner light flashes. There may be a simple way to fix this, simply reset the dial on the left as per instructions underneath. Wait a short time and the boiler should kick back in to gear with the reset light off and the burner light staying on constant. If this doesn't fix it then i'm afraid you are where i am! I've been searching the internet and it appears something called the PCB may have gone cuput! If you have a mate who's a plumber then you're probably in luck - otherwise as we all know it'll probably cost half your life savings. Good luck anyway, if i find anything else i'll post it on the sight.

Ben - Whitchurch, Hants, July 2010

I am reading the 50FF manual for you. It says LED Reset constant and burner LED slow flashing = Software Error. LED Reset constant and burner LED fast flashing = Ignition Lockout. What does it all actually mean? I haven't a clue

Joan, February 2010

my ones like that if it works just leave it alone

mark middleditch, January 2010