BOILER PROBLEMS
Posted: Fri Dec 03, 2010 10:13 am
by wiskenc
I HAVE A POTTERTON HEAT MAX COMBI BOLIER
AND WE HAVE ERROR CODE E133 FLASHING ON THE DISPLAY SCREEN WHAT SHOULD I DO
Posted: Sun Dec 05, 2010 7:30 pm
by htg engineer
E133 is gas pressure/no gas problem.
Could be a few things, most likely cause is the spark gap on electrodes, common problem caused by a design fault as the two probes bend together after a while.
You need an RGI to check gas meter/pressures as the low temperatures can affect gas meters especially if outside.
htg