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This document is stored and maintained electronically by
Service. All printed copies are deemed uncontrolled.
TM077: 325 & 410 Series II Heat Pump Service Instructions
Rev 00: Issued April 2014
Fault Finding: Chart 11
LED Fault Codes
11
Red LED: 3 flashes
Fault 3
Compressor Cooling Fault
Red LED: 5 flashes
Fault 5
Evaporator Sensor Fault
Red LED: 6 flashes
Fault 6
Compressor Sensor Fault
Red LED: 7 flashes
Fault 7
Heat Exchanger Water Outlet Sensor Fault
Red LED: 8 flashes
Fault 8
Water Flow Fault
11.3
11.4
11.5
11.6
11.7
11.8
YES
YES
YES
YES
YES
YES
NO
NO
NO
Red LED: 4 flashes
Fault 4
Tank Sensor Fault
NO
NO
Red LED: 1 flash
Fault 1
Compressor Over-Temperature (> 110°C)
NO
11.1
YES
11.9
Red LED: 9 flashes
Fault 9
Refrigeration System Fault
All Heating Disabled
