Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

E

ed209

Hi after a bit of help Boiler goes to first stage pilot
And lights
But no voltage going to gas valve on second stage main burner and PCB diode or whatever it is is flashing
The lady had a another gas engineer before me who diagnosed a faulty PCB so she ordered one herself ( from reputable local merchant)
And asked me to fit as I was next door doing a install
Fitted new board tripped out RCD, reset and tried again no trip out but doing as start of post, which apparently same as it was doing before
Resistance is the same on both gas valve solenoids
Unfortunately no Mi,s and Thec was closed as after hours
 
I'm not sure the diode thing on the PCB continuously flashes though after pilot is lit, so I guess that is the spark
 
Any help?
 

Attachments

  • ImageUploadedByTapatalkHD1417730235.825990.jpg
    ImageUploadedByTapatalkHD1417730235.825990.jpg
    96.9 KB · Views: 33
  • ImageUploadedByTapatalkHD1417730250.665030.jpg
    ImageUploadedByTapatalkHD1417730250.665030.jpg
    98.3 KB · Views: 25
Just been today and it was inadequate pilot flame on the flame rectification probe, thank you Mike & Bigads
 

Official Sponsors of Plumbers Talk

Similar plumbing topics

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.