7. DIAGNOSTIC
With this feature is possible to have a visual signal that a trouble is occurring.
This mode is always active and the signalling is made through the display board LEDS .
In case of no troubles the LEDS status follows its normal function.
NOTES
The troubles are showed according a priority list that is in case of more than one
trouble present, is always showed, at first, the one with the highest priority (1 2 3 etc).
Sensor damaged means a situation where sensor is short-circuited or opened.
In case of damaged sensors, the system (CM, FMO, FMI etc), if in OFF state, does not start.
WRONG MODE SELECTED means a situation where the operating mode chosen with remote controller
does not comply with the one allowed by jumpers settings.
Priority
TROUBLE
LD1(stby)
LD2(opr) LD3(timer)
1
No parameters
z
F
O
2
RAT damaged
F
O
O
3
ICT damaged
F
F
O
4
WRONG MODE
F
F
F
SELECTED
5
Water level alarm
O
F
O
O = LED off
z
= LED on
F = LED blinking
System does not operate
See paragraph
6-9 DRAIN PUMP
LEDS status
Effects
15
Summary of Contents for 39.7718.916
Page 8: ...3 REFRIGERANT FLOW DATA 3 1 Refrigerant Flow Diagram 8...
Page 21: ...E SOME PARTS OF THE AIR CONDITIONER DO NOT OPERATE 21...
Page 22: ...F AIR CONDITIONER OPERATES BUT ABNORMALITIES ARE OBSERVED 22...
Page 23: ...23...
Page 24: ...G POOR COOLING OR HEATING 24...
Page 25: ...H EXCESSIVE COOLING OR HEATING I A SENSOR IS DEFECTIVE 25...
Page 26: ...11 CHECKING ELECTRICAL COMPONENTS 26...
Page 27: ...27...
