Xylem HYDROVAR HV2.1f - Page 67

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To quit the following errors you have to cut he power supply for >30 seconds. If the error
signal should appear again, contact customer service and provide a detailed description of
the error.
Internal errors
Error-message on the Display - red LED on
ERROR 1
EEPROM-ERROR
(corresponding data block
malfunction)
Reset - after repeated error-message
⇒ change control card
ERROR 2
Security error /
Software protection error
Reset - after repeated error-message
⇒ change control card
ERROR 3 RAM-error
Reset - after repeated error-message
⇒ change control card
ERROR 4
Button error
(e.g.: jammed key)
• check push buttons,
• Display-board may be defect
ERROR 5 EPROM-error
Reset - after repeated error-message
⇒ change control card
ERROR 6
Program error:
Watchdog error
Reset - after repeated error-message
⇒ change control card
ERROR 7
Program error:
Processor pulse error
Reset - after repeated error-message
⇒ change control card
ERROR 8
Program error:
invalid processor command
• check the installation of the cables,
connection of the screen and
potential equalization
• check earth/ground
• install additional inductances for
the signal-cables (e.g. ferrites)
ERROR 9 Counter of operation time
Reset - after repeated error-message
⇒ change control card