E06
Emaux Incorrect Wiring / Polarity Error

Emaux variable-speed pump shows E06 and will not start; sometimes occurs after wiring changes or new installation.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Line and neutral reversed on single-phase models, Incorrect connection of external control terminals, Miswired communication cable between pump and Emaux controller

How to Fix / Troubleshooting

Safety first: Turn off power at the main breaker and verify with a tester before touching any wiring.

  • Compare wiring to Emaux diagram: Open the motor terminal cover and compare all connections to the wiring diagram on the pump nameplate or inside the cover. Correct any discrepancies.
  • Check external control wiring: If the pump is controlled by an Emaux automation system, verify that the low-voltage control or RS‑485 communication wires are connected to the correct terminals and polarity.
  • Remove temporary jumpers: Ensure no unauthorized jumpers or links have been added to the control terminals.
  • Reset the controller: After correcting wiring, power cycle the pump and clear the error using the STOP/RESET button if provided.

If E06 remains after confirming wiring, the control PCB may have been damaged by incorrect connections and should be inspected by a technician.

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Repair Difficulty

Medium 3/5

Required Part

Terminal Block / Control PCB
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