Operating instructions

Yes
Fan starts
No
After approx.
51 seconds
Check cables and
plug-in conne c-
tions
Fault
F9
Yes
Differential pres -
sure sensor
enables start
(0.75 V ac ross
terminals X8.5
and X8.6)
No
After approx.
51 seconds
Check fan cables
and fan plug-i n
connections ,
check fan
Fault
E6
Yes
Ignition
No
Fault Check the igni tion
module (control
voltage 230 V
across plug s X2.1
and X2.2)
F4
Yes
Gas combination
valve opens
No
Fault Check the gas
combination valve
(control voltage
230 V), check the
gassupplypres-
sure
F4
Yes
Ionisation cur-
rent builds
(higher tha n
5µA)
No
Fault Check electro de
adjustment an d
check the gas
pipe for air locks
Symbol A
F4
Further details regarding the individual steps (cont.)
11
Initial start-up, inspection, maintenance
5692 548 GB