Nilfisk-Advance CS7000 Fuel Cell EcoFlex, Service Manual

Page: 334 / 440

Solution System 334 Service Manual – CS7000
Problem Cause Correction
The high-pressure
spray system is not
operating.
The high-pressure wand
switch on the control panel
has not been pressed.
Press the high-pressure wand switch to engage the
high-pressure solution pump.
The high pressure wash
function is not installed in the
configuration menu.
Install the high pressure wash function in the
configuration menu.
The solution filter screen is
plugged.
Clean the solution filter screen.
The high-pressure pump
clutch is not engaging.
Check that the belt on the engine pulley is driving the
clutch pulley. Adjust the belt tension or replace the belt
as necessary.
Check the connection from the clutch to battery ground
and repair as necessary.
Check the output from
J3-9
on A1 Main Machine
Controller. If there is voltage from
J3-9
to the clutch,
replace the clutch.
The relief valve is not
operating.
Replace the relief valve.
The low-pressure
wash hose is not
operating.
The low pressure wash
function is not installed in the
configuration menu.
Install the low pressure wash function in the
configuration menu.
The low-pressure pump (
M23
)
is not operating.
Check for voltage at the pump.
• If there is voltage at the pump, replace the pump.
• If there is no voltage at the pump:
1. Check the wiring and circuit breakers upstream
of the pump.
2. Check the
J3-24
output from A1 Main Machine
Controller.