Recent content by andyt1968

It enters the error state whilst the burner is running. Just a guess but I would expect the electrode to cause a problem during the ignition of the boiler. Thanks for all your help Andy

PCB was recently replaced with the "new" green type along with the thermistor.

Ok, this time when it stopped, the reset light was on constant, the burner LED flashing at about 2Hz. Again, it's reset and the burner starts properly and rads getting warm. Please HELP, wife and children getting cross!!!!

Pump seems to be running ok, all rads get warm quickly from cold. The only LED lit is the Reset one, the Burner LED is out when in error state. Burner LED lights as expected when burner is on.

My boiler seems to function ok whilst on but regularly errors and stops with the Reset LED lit. Turning the boiler control to min and back on again resets it and all is well for a while. Is this a overheating fault? I suspect it is a lack of sufficient flow, how can I check this? If not...

Damn it, replacing components on the PCB did not fix it! New programmer installed with a 3A fuse protecting it this time!! Everything now functioning as it should. Thanks for all your help Andy

Thanks for all your help so far. I have replaced the 3 way diverter valve head. Unfortunately the nearest fuse was a 13A and it has blown a component on the programmer PCB. It looks like the failed component is marked as RV1A on the PCB and has the marking Y75110. As I am competent...

Thanks for the quick reply, just taken a look at the 3 port and yes there's a pimple on the top. Removed the cover, hell of a bang and big flash, now the timer has no power......Ooooops! Number inside the cover is V4073A1039 Whats broken now?

Added info, It's a Gloworm Micron boiler and Honeywell 3 way valve. The situation has worsened somewhat. The pump does not run unless the valve is manually held open, then everything is fine. As soon as the lever on the valve is released it returns to it's original position, pump stops and a...

My boiler trips to reset when the central heating comes on. The hot water system seems ok, but boiler overheats and goes into an error state when the hot water is hot but there is a demand for heat from the central heating system. I suspect it's the 3 way valve, am I right to replace this...