77
TROUBLESHOOTING
Malfunction or fault message
Possible causes
Remedy
170
Burnt motor
6,14,54,67,130
171
Burnt transformer
54.120
172
24V - 10A fuse burnt
120
173
174
"ESAF" flashes on the inverter
121
175
"SA" flashes on the inverter
4,45,67,122,123,124
POSSIBLE CAUSES
Possible causes
1
No power supply / plug disconnected or faulty
2
Disconnector in the OFF position or faulty
3
Appliance fuses actuated or not present
4
Board connectors disconnected
5
Thermal protections/system differentials actuated
6
Lack of one or more power supply phases
7
Power supply transformer burnt
8
Board fuses actuated
9
Faulty logic board
10
Disconnected/discontinued power supply wires
11
No firmware in the board
12
USB memory damaged
13
SD memory damaged
14
Preset not performed correctly
15
No power supply to the board
16
Serial communication cable not connected or on wrong connector
17
Wrong relay board serial address (dip switch)
18
Wrong software version
19
Two relay cards have the same serial address
20
Scale deposits on the resistors
21
Hard water
22
Resistor wrong connection or rated voltage
23
Fluctuating, unstable voltages
24
Emergency stop pressed or disconnected contacts
25
Micro switch or contact signal uncertain
26
USB memory absence /disconnection
27
SD absence /disconnection
28
Deleted cycles
29
Incorrect formatting
30
Mechanically broken lock
Summary of Contents for GWH Series
Page 9: ...9 IDENTIFICATION DECLARATION OF CONFORMITY copy ...
Page 81: ...81 TROUBLESHOOTING ...
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