Models S 1200, S 2400, S 4400, POU 3300, POU 3500
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23
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module, and contact your service
provider for Lauda Noah products.
“HIGH PROCESS”
Process temperature above high
limit. When the process
temperature exceeds this value,
the power supply outputs (pump,
thermoelectrics, heater) are turned
off.
Verify that the process value limits
on the PSC are set to values within
the range of the application.
“LOW PROCESS”
Process temperature below low
limit. When the process
temperature falls below this value,
the power supply outputs (pump,
thermoelectrics, heater) are turned
off.
Verify that the process value limits
on the PSC are set to values within
the range of the application.
“TE OVERTEMP”
Open thermoelectric snap switch
Confirm that the temperature
setpoint is in the acceptable
operating range of the unit, and
that facility water flow is meeting
the required spec for the unit.
“PUMP FAULT”
Pump is not drawing power
Verify that the pump circuit is
drawing the nominal current
amount and that the plumbing
line is connected correctly.
“INTERNAL FAULT ”
Unit has experienced an internal
fault regarding safety of operation
Contact LAUDA for service when
available.
