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7.10 WATLOW Series 988 User’s Manual
Tuning, Manual Operation, Alarms and Error Codes, Chapter 7
Error Codes
To clear an error code…
• If [`Err] is set to [`nLA], the error code should clear once the prob-
lem is corrected.
• If [`Err] is set to [`LAt], correct the problem and cycle power. You
can also clear the error by pressing both the Up-arrow > and Down-
arrow < keys to enter the Setup Menu, then press the Display key
¥.
Error codes [`Er4], [`Er5] and [`Er9] will result in these
conditions:
• The control is in automatic operation with both control outputs off.
• The alarm outputs are in their alarm state (de-energized with the LED
lit).
• The lower display is blank.
• The upper display indicates the error code.
• All keys are inactive.
• With [`Er5], all Setup Menu prompts return to default values.
• The above conditions occur regardless of the [FAIL] value, or the set-
tings in the Setup and Factory menus.
Cycle power to the control. If the error is still present contact the factory.
˜
NOTE:
An alarm display
will be masked by
an error condition
or when the control
is in the Calibration
or Setup menus.