Heidolph Hei-VAP Expert Operating Manual page 64

Troubleshooting
Error messages on display
Error
The pressure sensor is not attached
or defective.
Error
Defective communication with the
pressure sensor!
Error
The ventilation valve is not
connected or is defective.
Error
The ventilation valve is defective.
Error
The vacuum valve is not attached or
defective.
Error
The vacuum valve is defective.
Error
The vacuum pump is not attached
or defective.
Error
Vacuum module:
Connection error between base
plate and vacuum plug-in board.
Please check the cable connection!
Error
Chiller module:
Connection error between base
plate and chiller plug-in board.
Please check the cable connection!
Error
A communication error between
base plate and control panel has
occurred!
Error
The rotary drive is overloaded or
defective!
Switch the device off and on again!
Error
Alarm from the chiller:
Circuit board is too hot
Cause
Pressure sensor not
attached or defective
or control box is not
connected correctly.
Hardware fault on the
vacuum plug-in board
Ventilation valve not
connected or defective
or control box is not
connected correctly.
Short circuit in the
ventilation valve
Vacuum valve not
attached or defective
or control box is not
connected correctly.
Short circuit in the
vacuum valve
Vacuum pump not
attached or defective
or control box is not
connected correctly.
Bus error of the
component, e.g. due
to plugging/unplugging
during operation.
Bus error of the
component, e.g. due
to plugging/unplugging
during operation.
Bus error of the
component, e.g. due
to plugging/unplugging
during operation.
Drive motor defective
or overloaded
Chiller overloaded
64
Remedy
▪ Check and re-attach
vacuum sensor
▪ Check connection of
control box
▪ Contact service
▪ Replace vacuum
plug-in board
▪ Check and re-connect
the ventilation valve
▪ Check connection of
control box
▪ Contact service
▪ Check and re-attach
vacuum valve
▪ Check connection of
control box
▪ Contact service
▪ Check and re-attach
vacuum pump
▪ Check connection of
control box
▪ Check cable
connection
▪ Switch the device off
and on again!
▪ Check cable
connection
▪ Switch the device off
and on again!
▪ Check cable
connection
▪ Switch the device off
and on again!
▪ Switch the device off
and on again!
▪ Contact service
Switch chiller off and
let it cool down