DBW 2010 / 2016 5 Troubleshooting
503
5.3 Troubleshooting – rapid diagnosis
Heater types:
All heaters
Only heaters with sensor technology with 1563/1564 control unit
Description of malfunction Check and repair or replace if necessary
S
After switching on – no function
Switch-on check – goes out after
approx. 25 sec. (30 sec.
o)
Combustion air fan – not running
Combustion air fan – no run-up
Combustion air fan – no run-on
Circulation pump – not running
Ignition spark – not present
Combustion – does not begin (after
15 sec.
o)
Combustion – stops after approx.
25 sec. (30 sec.
o)
Combustion – cannot be shut off
Combustion is carried out – with light-
coloured smoke
Combustion is carried out – with dark-
coloured smoke
Heater – overheated
Fig. 502 Troubleshooting – rapid diagnosis
To Next Page
Loading...
Need help?
General
