If an error occurs in the Thermo Scientific TII system, the System Alarm
LED will illuminate and an error message will appear on the display.
Type II Water System
5-9
Thermo Scientific
Section 5
Maintenance and Servicing
System Alarms and
Errors
Message
Possible Causes
Action
Res Interface Error
(12C comm)
Reservoir interface cable not
attached at both ends.
Check cable connections.
Interface board not connected.
Check cable connection to control
board.
Interface board, control board,
or reservoir board out of toler-
ance.
Replace board (PC1403X2, PC1403X3,
PC1406X1, or PC1406X2.)
Alternate reservoir in use.
Using Thermo Scientific TII menu
screens, set reservoir type to
“Alternate” (in “System Options”).
TII Res Float Err
Float cable not securely
connected.
Check float cable connection.
Float not operating correctly.
Check float operation.
Floats not wired correctly.
Check float wiring.
Floats not installed correctly.
Check float installation.
Alternate reservoir in use.
Using Thermo Scientific TII menu
screens, set reservoir type to
“Alternate” (in “System Options”).
Alt Res Float Err
Float cable not securely
connected.
Check float cable connection.
Float not operating correctly.
Check float operation.
Floats not wired correctly.
Check float wiring.
Floats not installed correctly.
Check float installation.
Thermo Scientific TII reservoir
in use.
Using Thermo Scientific TII menu
screens, set reservoir type to “Thermo
Scientific TII” (in “System Options”).
Ensure interface connector is securely
connected to the Thermo Scientific TII
and the Thermo Scientific TII storage
reservoir.
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