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83055116 • 1/2016-05
Installation and Operating Instructions
G
as burner WG20.../1-C ZM-LN (W-FM 25)
9 Faults rectification
9
.2 Fault codes, causes and rectification
The following faults must be rectified only by qualified personnel:
Fault codes Cause Rectification
01h ... 02h Internal unit fault uSwitch off the power supply temporarily.
05h ... 0bh uReset the burner. If the fault re-occurs, replace the
0dh ... 10h combustion manager (see Ch 8.12).
13h ... 15h
17h
19h ... 1Ch
1Eh
43h
45h
50h
56h
A0h
ACh
b0h ... b2h
b9h
03h Ambient temperature too high uSwitch off the power supply temporarily.
uCheck the ambient temperature.
uReset the burner. If the fault re-occurs, replace the
combustion manager (see Ch 8.12).
Over-voltage uSwitch off the power supply temporarily.
uCheck the power supply’s voltage.
uReset the burner. If the fault re-occurs, replace the
combustion manager (see Ch 8.12).
04h More than 5 resets in the last 15 minutes uWait 3 minutes.
uRectify the fault cause.
0Ch Burner configuration is incorrect uCheck the burner configuration.
uCheck the values in parameter level.
uCheck parameters E0 ... E3.
11h Low voltage uCheck the power supply’s voltage.
12h Power supply temporarily interrupted uCheck the power supply’s voltage and status.
16h Communication with TWI interface (VisionBox) uPlug in and unplug the participants on the TWI Bus
is incorrect only when de-energized.
uReduce the number of participants on the TWI Bus.
uReduce the bus cable length.
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