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Chapter 5
DIAGNOSTICS
The Fullmotion CF10C Inverter has two diagnostics methods, by visual light emis-
sion using a LED indication, or by serial communication protocol.
5.1 LED indication
The LED diagnostics function helps services technicians to diagnose possible fault
components by blinking a LED inside the box in different patterns. Basically, it in-
dicates if there is a problem with Compressor, CF10C Inverter or Thermostat. The
table below describes the failure modes.
LED Status
1 Flash
30 seconds
2 Flashes
3 Flashes
4 Flashes
No Flash
Period
Color
Green
5 seconds
Green
5 seconds
Red
5 seconds
Orange
–
–
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Description
Normal operation
Communication problem
Inverter problem
Compressor problem
No input power / Damaged
inverter
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