Synchronous motors (within zone valves)

These small motors are powered by 240V AC to rotate a spring loaded gearing arrangement, which in turn, rotates the spindle to open / close the valve. The…

This content is for Annual Subscription Special members only.

Please login to view this content. (or Register here.)

Registration is only £9.99 per year.

When you subscribe you get access to:

  • 15 Complete Fault Diagnosis sections for Boilers
  • The complete Boiler Fault Manual in PDF format to download
  • CP12 template plus other templates

PLUS Full Boiler Fault Diagnosis for the following: