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
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