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Service. All printed copies are deemed uncontrolled.
TM077: 325 & 410 Series II Heat Pump Service Instructions
Rev 00: Issued April 2014
Fault Finding: Chart 11.6
Red LED: 6 flashes
Fault 6
Compressor Sensor Fault
11.6
1. Ensure the sensor is firmly plugged
into the correct socket.
2. Ensure that the sensor plug pins are
clean and making firm electrical
contact.
NO
Is the compressor sensor firmly
plugged into the correct socket on
the controller?
Is the compressor sensor
working?
TEST 1
Replace the sensor.
NO
YES
Replace the controller.
YES
Fault Finding: Chart 11.7
Red LED: 7 flashes
Fault 7
Heat Exchanger Water Outlet Sensor Fault
11.7
1. Ensure the sensor is firmly plugged
into the correct socket.
2. Ensure that the sensor plug pins are
clean and making firm electrical
contact.
NO
Is the heat exchanger water outlet
sensor firmly plugged into the
correct socket on the controller?
Is the heat exchanger water outlet
sensor working?
TEST 1
Replace the sensor.
NO
YES
Replace the controller.
YES
