What do I do if my Mysa is showing "H2" on the display?

The H2 error is a result of an incomplete (open) heating circuit. To complete the heater circuit:

  • The Mysa’s LOAD connection must make contact with the heater supply connection;
  • And the Mysa’s L2 (N) wire must make contact with the heater return wire.

The other possibility is that the heater's return wire in the L2 or neutral bundles are not making contact with the other wires in the wire nut.

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