WD-4S
Rev. 5.0 (201912)
Operating instructions
45
When you contact service personnel, you will need to provide the following infor-
mation:
•
Machine type and model.
•
Machine serial number and date when the machine was installed.
•
A brief description of the problem. Are any fault codes shown in the dis-
play?
•
What happened/was being done immediately before the fault occurred?