Xylem HYDROVAR HV2.1f Operating Instructions Manual page 67

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.
ERROR 1
ERROR 2
ERROR 3
ERROR 4
ERROR 5
ERROR 6
ERROR 7
ERROR 8
ERROR 9
Internal errors
Error-message on the Display - red LED on
EEPROM-ERROR
(corresponding data block
malfunction)
Security error /
Software protection error
RAM-error
Button error
(e.g.: jammed key)
EPROM-error
Program error:
Watchdog error
Program error:
Processor pulse error
Program error:
invalid processor command
Counter of operation time
Reset - after repeated error-message
⇒ change control card
Reset - after repeated error-message
⇒ change control card
Reset - after repeated error-message
⇒ change control card
• check push buttons,
• Display-board may be defect
Reset - after repeated error-message
⇒ change control card
Reset - after repeated error-message
⇒ change control card
Reset - after repeated error-message
⇒ change control card
• 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)
Reset - after repeated error-message
⇒ change control card
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