This video covers the common causes of an "Er 1" error code on your Boilermate or Hydromax digital control (Ener-g-net).

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Amtrol Tech Takes are short informational videos for installers, technicians, and DIYers looking to learn more about Amtrol products and how they are used.

Chapters:
0:00 - Intro
0:13 - What is an Er 1 error
0:22 - Unplugged sensor
0:31 - Faulted sensor
0:52 - Closing

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