How do I fix Module Voltage Mismatch (bypass diode) on a SolarEdge?

Compare module voltage in monitoring Analysis against the panel Vmpp spec. Then: Rule out shading on one or two thirds of the module.

SolarEdge

Module Mismatch

Module Voltage Mismatch (bypass diode)

A module shows significant voltage difference, possible bypass diode failure in the panel.

Common causes

Failed bypass diodePartial shading pattern

What to check

STEP 1

Compare module voltage in monitoring Analysis against the panel Vmpp spec.

STEP 2

Rule out shading on one or two thirds of the module.

Escalate if

Unshaded and non-conforming, refer to the module manufacturer

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