Maintenance
• Check power supply cord (14) and plug for electrical and mechanical damage.
• Clean the extruder nozzle (32) of welding residue every time the welding shoe is changed (Changing the welding
shoe, page 27).
Service and Repairs
• Repairs should only be carried out by authorised Leister service points. These guarantee a professional,
reliable repair service within 24 hours, using original replacement parts according to the circuit diagrams
and replacement part lists.
• If a service message with the service code 1 appears after the WELDPLAST S4 is turned on,
the carbon level should be checked by an authorised Leister service point and, if necessary,
the carbon brushes of the drive changed.
• The message can be hidden by pressing the Select key (28)
• The hand extruder may continue to be operated for a short time.
• If the carbon brushes are not exchanged in good time, the drive will operate until it reaches the
mechanical carbon shut-off point. No error message will appear on the display, but the drive
will no longer operate.
Warranty
• For this tool, the guarantee or warranty rights granted by the relevant distributor/seller shall apply. In case of
guarantee or warranty claims any manufacturing or workmanship defects will either be repaired or replaced
by the distributor at its discretion. Warranty or guarantee rights have to be verified by an invoice or a delivery
document. Heating elements shall be excluded from warranty or guarantee.
• Additional guarantee or warranty claims shall be excluded, subject to mandatory provisions of law.
• Warranty or guarantee shall not apply to defects caused by normal wear and tear, overload or improper hand-
ling.
• Warranty or guarantee claims will be rejected for tools that have been altered or changed by the purchaser.
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