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Alarm Codes, Descriptions and Corrective Actions
µ
P-D Controller
CRR-20 & CRR-40, September 1999
Code
Description
Corrective Action
71
User Hourmeter 1 Expired
• Check the hourmeter type and proceed according to
(Check Alarm)
company requirements. Reset the hourmeter if
required.
• Indicates time set on a user hourmeter has
expired.
72
User Hourmeter 2 Expired
• Check the hourmeter type and proceed according to
(Check Alarm)
company requirements. Reset the hourmeter if
required.
• Indicates time set on a user hourmeter has
expired.
73
User Hourmeter 3 Expired
• Check the hourmeter type and proceed according to
(Check Alarm)
company requirements. Reset the hourmeter if
required.
• Indicates time set on a user hourmeter has
expired.
74
User Hourmeter 4 Expired
• Check the hourmeter type and proceed according to
(Check Alarm)
company requirements. Reset the hourmeter if
required.
• Indicates time set on a user hourmeter has
expired.
79
Data Overflow
• No corrective action possible. This alarm only
(Check Alarm)
serves to indicate an event was not recorded
in the datalogger.
• Indicates an event that occurred was not
recorded by the datalogger.
81
Compressor Temperature Sensor Failure
• Check the sensor by selecting it using the View
(Check Alarm)
menu. If the display shows [- - - -], the sensor is
defective or the circuit is open or shorted.
• Indicates a problem exists with this sensor
or its wiring. The sensor is reading out-of
• Check the sensor by substitution. Be sure the
range; or appears to be open or shorted.
sensor polarity is correct.
• Continuity check circuit wiring using a high quality
multimeter. Be sure to maintain the correct polarity
or the sensor will not work.
NOTE: Do NOT use a test light or other instru-
ment; or controller damage may result.
Содержание CRR-20
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