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.

Nov 4, 2020
2
0
1
Member Type
DIY or Homeowner
Hi,
We have a logic plus h18 boiler,
Its not heating up, restarted it, i can hear it but no heat. It stays at zero, when i change dial to any degrees it flashes radiator symbol and goes back to zero.
Its about 2 years old
Has anyone got any advice or anything you can recommend as we dont really want somone coming in house to look, so thought would see if any one can help before that.,

Thanks.
 

Attachments

  • IMG_20201104_193650.jpg
    IMG_20201104_193650.jpg
    90 KB · Views: 33
  • IMG_20201104_193643.jpg
    IMG_20201104_193643.jpg
    41.1 KB · Views: 28
  • IMG_20201104_193632.jpg
    IMG_20201104_193632.jpg
    61.9 KB · Views: 28
  • IMG_20201104_193632.jpg
    IMG_20201104_193632.jpg
    61.9 KB · Views: 30
  • IMG_20201104_193643.jpg
    IMG_20201104_193643.jpg
    41.1 KB · Views: 29
  • IMG_20201104_193650.jpg
    IMG_20201104_193650.jpg
    90 KB · Views: 28
O is standby on logics not o o as far as I'm aware that's a code that's not on list nearest would be C O which is a board starting fault
[automerge]1604741179[/automerge]
Should have said assuming boiler has been serviced it's still under warrant.
 
Last edited:
  • Like
Reactions: SimonG and Aquarius
It’s not receiving a signal to fire up, check thermostats and zone valves, is the pump running?
 

Official Sponsors of Plumbers Talk

Similar plumbing topics

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