How do I fix Over-Temperature Fault on a Anker?

Check heat sink on rear of power module is clear of obstruction Then: Verify installation clearances — 200mm minimum sides, clear above

Anker

OT_FAULT

Over-Temperature Fault

Power module or battery module has exceeded safe operating temperature.

Common causes

Heat sink blocked by debris, insulation, or wall obstructionInstalled in confined space with no airflowDirect sunlight on south-facing outdoor locationAmbient temperature exceeds 55°CMultiple modules stacked without adequate clearance

What to check

STEP 1

Check heat sink on rear of power module is clear of obstruction

STEP 2

Verify installation clearances — 200mm minimum sides, clear above

Escalate if

Location and clearances correct but fault persists — possible internal thermal sensor failure. Contact Anker support

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More Anker fault codes

Grid Fault / Grid Abnormal