TMC Reef Pump Compact 500 - Page 10

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Troubleshooting LED Error Codes
LED 1 and 2 are flashing: Hardware protection active  Check motor & check controller
LED 1 and 4 are flashing: Over voltage detected  Check PSU
LED 1 and 5 are flashing: Under voltage detected  Check PSU
LED 2 and 3 are flashing: Software protection active  Check motor & check controller
LED 3 and 4 are flashing: Open circuit protection active  Check all connection cables and power-cord to
ensure all are undamaged and connections are correct  If the above are ok,
check the motor
LED 4 and 5 are flashing: Impeller is jammed or broken or pump is operating dry  Check impeller
for signs of blockages/damage and ensure the Reef Pump Compact is fully
submerged