1 5
Weekly or every
40 operating
hours
Quarterly or every
200 operating
hours
Annually or every
500 operating
hours
As required
Check oil level
x
Change pump oil
x
Clean screens and filters in water
supply system
x
Clean heat exchanger
x
Clean ignition system
x
Clean fuel system
x
Grease hand-tightened screw
connections on spray lance and
high-pressure hose
x
Decalcify
x
3.5 Maintenance schedule
3.4 Fault finding
With the exception of the settings explained in the operating instructions, no repairs of any kind should be attempted
by the user himself/herself. Always leave service and repair work, particularly the elimination of electrical faults, to
a qualified Wap Customer Service Technician or an authorised expert.
CAUTION!
Always disconnect power plug before working on machine!
The information below will help in fault finding and elimination. Should it nevertheless not be possible to repair the
fault, please contact the nearest Wap Customer Service office.
Fault
Cause
Remedy
A
Machine does not start up
a)
Power supply interrupted
Have power cable checked by
electrician
b)
Control fuse defective
Install new fuse
c)
Overload protection has been
triggered
Allow machine to cool for at least 3
min. Eliminate reason for overloading
(e.g. high-pressure nozzle dirty,
machine calcified)
d)
Thermal fuse blown
Have replaced by Wap Service
Technician
B
Burner does not ignite during
a)
Fuel tank empty
Fill fuel tank
switch-on
b)
Impurities or water in fuel
Clean fuel tank and lines
c)
No ignition spark
Have burner adjustment checked by
Wap Service Technician
d)
Solenoid valve does not open
Check electrical connection and
replace solenoid valve if necessary
e)
Screen in solenoid valve dirty
Clean screen (see B b))
Содержание SC 702
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