Wilo SiFire Easy Betriebsanleitung Seite 75

Faults
Motor does not stop after using of stop
button
Engine fails to reach nominal speed or
oscillates
The starter pinion does not remove
after starting the engine
Engine does not start or tries to start
and stops then
Black smoke
Unusual heating – too high water/oil
temperature
Jockey pump does not start
Installation and operating instructions Wilo-SiFire Easy
Causes
This is normal if plant pressure is not
restored
Switchgear failure
Failure of electromagnet for stopping
diesel pump switchgear
Accelerator lever in wrong position
Dirty fuel strainer
Faulty injector/pump
Speed counter failure
Failure of switchgear on switchgear
Unloaded batteries
Lack of fuel
Air in fuel circuit
Dirty fuel strainer
Dirty air strainer
Fuel circuit failure: injectors blocked,
injection pump failure
Too low temperature
Loosened or rusty connections between
battery/starter/relay
Diesel pump switchgear failure
Starter failure
Dirty/blocked air strainer
Too high oil level
Problem with injector, fuel pump, etc.
Pump overload (frictions)
Coupling out of axis
Ambient temperature beyond 40 °C
Insufficient ventilation
Dirty or blocked radiator/coolant
Lack of water in radiator/heat
exchanger
Heat exchanger circuit valve closed or
insufficiently open
Water circulation pump failure
Fan belt failure (air-cooled engines)
Corresponding alarm failure
No power supply
The pressure switch is calibrated to a
lower pressure than the main pump.
Short-circuit in winding
Intervention of the thermal protection
Switchgear failure and wrong connec-
tions.
Remedies
Stop the automatic mode, then stop the
pump
Switch off the switchgear, then check
Use the fuel lever on which the electro-
magnet works manually
Check and adjust RPM and secure lever
Clean or replace
Contact the Wilo customer service
Check the distance from wheel. Replace.
Contact the Wilo customer service
Check battery and battery charger.
Load battery and replace it if necessary
If it is not indicated on the switchgear's
indicating light, check the fuel tank and
alarm float.
Replace the tank
Remove air from circuit by draining the
injectors and diesel fuel strainers.
Replace
Replace
Contact the Wilo customer service
Check that the ambient temperature is
not less than 10 °C.Then check the cor-
rect working of oil/water heater.
Replace
Check cables and terminals.
Re-wire. Tighten correctly.
Replace
Check and replace if necessary
Contact the Wilo customer service
Replace
Remove oil excess
Contact the Wilo customer service
Dismantle and check
Align correctly
Ventilate the space
Check filters and ventilation grille. Clean
or resize
Dismantle and clean
After the cooling, fill with water and
check for if leaks are present.
Check that pump has a water flow, then
open the butterfly valve.
Contact the Wilo customer service
Check voltage and replace if necessary
Check sensor, connections and control
unit on switchgear. Replace if necessary.
Check the connections at the electric
switchgear.
Check the pressure switch settings.
Check winding
Check the sizing of the supply line. Check
that the pump is not blocked, then check
pressure switch setting and the tank
inflation.
Check
English
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