Viessmann Vitoladens 300-W Service Instructions For Contractors page 13
Wall mounted oil fired condensing boiler for the combustion of low sulphur fuel oil din 51603-el-1 with integral boiler control unit
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Also See for Vitoladens 300-W:
- Installation and service instructions manual (152 pages) ,
- Installation and service instructions for contractors (116 pages) ,
- Technical manual (72 pages)
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Further details regarding the individual steps
Yes
Fan starts after no
more than
10 min.
Green LED on
ignition trans-
former flashes.
Yes
The air pressure
switch responds
Yes
Ignition and oil
pump motor start
Yes
The solenoid
valves open
Yes
Flame signal
present
Symbol A
Commissioning, inspection, maintenance
No
Fault
F9
No
after approx. 51 s
Fault
F5
No
No
Fault
F4
No
Fault
F4
(cont.)
Check the oil pre-
heater, fan, cables
and plug-in con-
nectors
(the oil preheater
has not switched
through; the tem-
perature is not ach-
ieved)
Check the air pres-
sure switch, cables
and plug-in con-
nectors
Check the ignition
module and oil
pump motor,
cables and plug-in
connectors
Check the oil sup-
ply; check the sol-
enoid valves
Check ignition
electrodes, elec-
trode gaps and
connecting lines
13
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