How do I fix Contactor Fault! (Code 28) on a myenergi?

Unplug EV. Press and hold button — this will not clear a welded contactor. Then: Do NOT attempt to open or bypass unit.

myenergi

ZP-008

Contactor Fault! (Code 28)

Relay inside Zappi has welded contact. Secondary relay open to isolate EV. Cannot be cleared in field.

Common causes

Relay welded due to high-current arcingInternal hardware failure

What to check

STEP 1

Unplug EV. Press and hold button — this will not clear a welded contactor.

STEP 2

Do NOT attempt to open or bypass unit.

Escalate if

Always escalate — welded contactor, unit replacement required, contact myenergi

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