Weishaupt WL20/2-C Z User Manual

Installation and operating instruction
Oil burner WL20/2-C Z
10 Troubleshooting
83307702 1/2019-04 La
55-80
Error codes with lockout
The following faults must only be rectified by qualified personnel:
Fault codes Fault Cause Rectification
2 x flashing
No flame,
end of safety time
Oil pump supplies no oil Oil supply leaking Check oil supply
Anti siphon valve does not
open
Check valve, if necessary
replace
Shut off device closed Open shut off device
Pre-filter strainer soiled Replace pre-filter strainer
Oil pump defective Replace oil pump
[ch.9.10]
No oil throughput at the
nozzle
Oil nozzle blocked Replace nozzle
No ignition Ignition electrode dirty or
wet
Clean ignition electrode
Ignition electrode spark gap
too big or short circuited
Set ignition electrode
[ch.9.5]
Ceramic insulator defective Replace ignition elec-
trode.
Ignition cable defective Replace ignition cable
Ignition unit defective Replace ignition unit
Solenoid valve does not
open
Coil defective Replace coil
Combustion manager does
not detect a flame signal
Flame sensor soiled Clean flame sensor
Flame sensor defective Replace flame sensor
Illumination insufficient Check burner setting
Burner motor does not run Oil pump seized Replace oil pump
[ch.9.10]
Capacitor defective Replace capacitor
Burner motor defective Replace burner motor
[ch.9.12]
No flame formation despite
ignition and oil supply
Nozzle distance incorrect Check nozzle distance,
adjust if necessary
[ch.9.7]
Mixing pressure too high Check mixing pressure
[ch.7.1.2]
Flashing 4 times
Flame simulation/
extraneous light
Flame signal prior to or after
operation
Extraneous light source
present
Extraneous light detection
from 13 μA
Find and eliminate ex-
traneous light source
Flame sensor defective Check flame sensor, if
necessary replace
Flame formation during pre-
purge
Solenoid valve leaking Replace oil pump
[ch.9.10]
Flashing 6 times
Actuator fault
Actuator does not reach tar-
get position within 10
seconds
Actuator plug unplugged Plug in actuator plug
Actuator defective Check actuator, replace if
necessary
Setting of limit switches in-
correct
Check position of limit
switches
Air damper/angle drive
blocked
Check freedom of move-
ment of air damper and /
or angle drive

Weishaupt WL20/2-C Z Specifications

General

Brand	Weishaupt
Model	WL20/2-C Z
Category	Burner
Language	English