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Excerpt

If you see a code on the valve that is not a temperature then there is a problem.

The error codes are as follows:

  • E1 - Front temperature sensor has a problem
  • E2 - Back temperature sensor has a problem
  • E3 - Motor has a problem
  • E5 - communication error - Restart the valve by removing the batteries and putting them back in after

10

  • 30 Seconds. The valve screen should display 21 and the E5 message should not return unless the valve is out of range. (See articles about smart plugs).

For error codes E1, E2 & E3 Please contact Heat Genius if the valve is under warranty for a replacement.