Duplex Standard Series - Troubleshooting Common Issues; Performance Issues; Start-up and Flow Problems

DUPLEX 340/420/620
1.0
122
8. TROUBLESHOOTING
The maintenance interventions authorised by Duplex International S.r.l. are indicated
in chapter “7. MAINTENANCE”.
The content of this chapter is not exhaustive. Instead, it aims to provide information on the
most common problems in order to help specialised technicians to find the fault in question.
CAUTION
The indications under the term “SOLUTION” in the tables below DO
NOT AUTHORISE interventions that could jeopardise safety.
PROBLEMS PROBABLE CAUSE SOLUTION
Wet stripes on the sides
Excessive liquid dispensed. Dispense less liquid.
Irregular paths are covered
failing to follow the
instructions on paragraph
“6.4 How to wash floors”.
Follow the instructions in
chapter “6.4 How to wash
floors”.
Rest Traslation switch in
transport position.
Move the Rest Traslation
switch to the required
position.
Recovery tank scrapers are
dirty or worn.
Clean or replace the
scrapers.
The dirt is not picked up
Mop-Up device turned off. Turn on the Mop-Up device.
Recovery tank with dirty or
worn scrapers.
Clean or replace.
Worn brushes. Replace.
Cleaning liquid not coming
out.
Check the valve and adjust
the screw under the handle
lever.
The recovery tank is not
properly seated in its housing.
Check and insert the
recovery tank correctly.
Does not start up
Power cord faulty or plug
not correctly inserted into
the socket.
Restore and replace, if
necessary.
Rev.
TROUBLESHOOTING
EN