11 Customer Service
If you have questions regarding the product, please contact our customer service.
Please have the following information ready so we can help as quickly as possible.
• Product denomination (provided on the type plate)
• Serial number (provided on the type plate)
• Location
• Date of delivery
• Invoice address
• Hardware- and wiring diagram version (provided on the type plate)
• Failure description:
o Inverter status,
o Failure date,
o Error code,
o Detailed failure description
o How often does the error occur?
WSTECH GmbH
Eckernförder Landstraße 78
D-24941 Flensburg, Germany
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