Installation Instructions

48
Displayed
fault code
System characteris-
tics
Cause Measures
Fd Burner blocked Fault, burner con-
trol unit
Check ignition electrodes
and connecting cables.
Check whether a strong
interference (EMC) field
exists near the appliance.
Press "Reset" (see
page 48).
Replace control unit if
fault persists.
FF Burner blocked Fault, burner con-
trol unit
Check ignition electrodes
and connecting cables.
Check whether a strong
interference (EMC) field
exists near the appliance.
Press "Reset" (see
page 48).
Replace control unit if
fault persists.
Press reset
r
Turn rotary selector "rt" to "U
RESET" for less than 2 s, then back into
the control range.
Troubleshooting
Fault messages on the display
(cont.)
5609 059 GB