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10 DIAGNOSTICS
10.1 Ice & Water Models
A spanner symbol and LCD fault code will appear automatically if there is a fault in the temperature
measuring system, defrost system, icemaker, fans or low ambient heater. (Refer to the diagram below.)
When the PC door is opened, an alarm will sound. The number of beeps also indicates the fault code.
Pressing any of the control buttons can deactivate these alarms.
Example: When a fault develops, the LCD fault code appears, together with the spanner (wrench) symbol.
After rectifying the problem, the fault code and spanner will disappear. Faults are only rectified when that
feature is used. So in the case of a defrost fault, the code will remain until a defrost is initiated and it is
successful.
10.1.1 Fault Codes
Fault Code 1
Reason:
On the last power up, the power module failed self test.
Primary Action:
Replace power module.
Fault Code 2
Reason:
The previous 2 defrosts were aborted after
40 minutes.
Primary Action:
Check defrost element assembly in the FC. If faulty, replace.
Fault Code 3
Reason:
The resistance of all the temperature sensors are outside the normal range (> 45K
Ohms).
Primary Action:
Check the 6-way RAST connector at the power module.
Secondary Action:
Re-terminate the 6-way RAST connector.
Tertiary Action:
Replace the power module.
Fault Code 4
Reason:
The resistance of all the temperature sensors are outside the normal range (< 660
Ohms).
Primary Action:
Check the 6-way RAST connector at the power module.
Secondary Action:
Re-terminate the 6-way RAST connector.
Tertiary Action:
Replace the power module.
Fault Code 5
Reason:
The resistance of the FC sensor is outside the normal range
(> 45K Ohms).
Primary Action:
Check the sensor connection at the power module.
Secondary Action:
Replace the sensor.
Fault Code 6
Reason:
The resistance of the FC sensor is outside the normal range
(<660 Ohms).
Primary Action:
Check the sensor connection at the power module.
Secondary Action:
Replace the sensor.
Fault Code 7
Reason:
The resistance of the Evaporator sensor is outside the normal range
(> 45K Ohms).
Primary Action:
Check the sensor connection at the power module.
Secondary Action:
Replace the sensor.
Summary of Contents for 635 Active Smart
Page 1: ...321144 Service Manual 635 680 790 900 Active Smart Refrigerator Freezer R134a R600a Systems...
Page 2: ...321144 2...
Page 96: ...321144 96 Photo 12 22 5...
Page 100: ...321144 100 Diagram 12 25...
Page 108: ...321144 108 13 11 Embraco Compressor Fitted With External Overload Diagram 13 11...
Page 114: ...321144 114 14 2 Non Ice Water Models Wiring Diagram...
Page 116: ...321144 116 14 4 Ice Water Models Wiring Diagram...
Page 117: ...321144 117 14 5 900 Models Power Control Module Wiring Connections Reciprocating Compressor...
Page 118: ...321144 118 14 6 900 Models Wiring Diagram Reciprocating Compressor...
Page 119: ...321144 119 14 7 900 Models Power Control Module Wiring Connections VC Compressor...
Page 120: ...321144 120 14 8 900 Models Wiring Diagram VC Compressor...
Page 121: ...321144 121 14 9 B Model Wiring Route Diagram 14 9...
Page 122: ...321144 122 14 10 T Model Wiring Route Diagram 14 10...
Page 145: ......
