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What do the messages Er1, Er2, Er3 mean?

April 26, 2017ER1 er2 er3 mean Messages

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What do the messages Er1, Er2, Er3 mean?

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They mean an occurrence with the respective sensors: the sensor can be disconnected or out of the specified measurement range. In temperature and humidity controllers, Er1 is for temperature, and Er2 for humidity. The technical sheets that follow with the product can explain in greater details each message, as these vary according to the purchased controller.