Viessmann MatriX radiant burner, Инструкция по эксплуатации

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29
Troubleshooting
Diagnostics
(cont.)
Fault
code System
characteristics Cause Remedy
32 Burner control unit in
fault state Error in feedback
from auxiliary
start−up valve, output
relay does not
activate Replace burner
control unit
35
Error in feedback
from ignition, output
relay does not
activate
36 Fan speed during
start−up or operation
stays outside its set
range longer than
5s, speed for ignition
setting or start
output during
operation is not
achieved Fan faulty, cables
faulty or broken Check cables,
replace fan
37 Fan does not reach
set speed Fan faulty, cables
faulty or short
circuited, fan blocked
by debris Check cables,
replace fan, remove
debris
42 Burner control unit
remains in start−up
position; no start−up
in spite of heat
demand Safety chain broken Check jumper(B 2) of
safety chain
4E Burner control unit in
fault state Internal error Replace burner
control unit
Scrolling
change−
over
display:
123
457 Constant start
attempt CoresL 1 and N at
control unit mains
supply interchanged
Check mains supply
and swap cores
5692541 GB