What does the error code 'bl E5' mean on the TECH EU-21 controller?
According to the Notifications section of the TECH EU-21 manual, the display alternating between bL and E5 indicates a sensor failure. To troubleshoot this…
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According to the Notifications section of the TECH EU-21 manual, the display alternating between bL and E5 indicates a sensor failure. To troubleshoot this…