Num 00

Description No Alarms Exist

Operator Action No action required.

01

Microprocessor Power Up Reset

No action required.

02

Check Evaporator Coil Sensor

Manually monitor load temperature.  Report this alarm at the end of the day.

03

Check Return Air Sensor

Manually monitor load temperature.  Report this alarm at the end of the day.

04 05

Check Discharge Air Sensor Check Ambient Temp Sensor

Manually monitor load temperature.  Report this alarm at the end of the day. Report this alarm at the end of the day.

06

Check Coolant Temp Sensor

Report this alarm at the end of the day.

07

Check Engine RPM Sensor

Report this alarm at the end of the day.

08

Unit Running on Coil Sensor

Manually monitor load temperature.  Report this alarm at the end of the day.

09*

High Evaporator Temperature

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

10*

High Discharge Pressure (or Temperature)

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

11

Unit Controlling on Alternate Sensor

Manually monitor load temperature.  Report this alarm at the end of the day.

12

Sensor or Digital Input Shutdown

The unit (or zone) is no longer able to operate and has been shut down.  Repair immediately.

13

Sensor Check

Manually monitor load temperature.  Report this alarm at the end of the day.

14

Defrost Terminate by Time

Report this alarm at the end of the day.

15

Check Glow Plugs or Intake Air Heater

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

16

Manual Start Not Completed

Report this alarm at the end of the day.

17*

Engine Failed to Crank

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

18*

High Engine Coolant Temperature

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

19*

Low Engine Oil Pressure

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

20*

Engine (Vapor Motor CR) Failed to Start

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

21*

Cooling Cycle Check

Manually monitor load temperature.  Report this alarm at the end of the day.

22* 23

Heating Cycle Check Cooling Cycle Fault

Manually monitor load temperature.  Report this alarm at the end of the day. The unit (or zone) is no longer able to operate and has been shut down.  Repair immediately.

24

Heating Cycle Fault

The unit (or zone) is no longer able to operate and has been shut down.  Repair immediately.

25

Alternator Check

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

26* 27*

Check Refrigeration Capacity Vapor Motor RPM High (CR)

Manually monitor load temperature.  Report this alarm at the end of the day. If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

28

Pretrip or Self Check Abort

Report this alarm at the end of the day.

29

Defrost Damper Circuit Check

Manually monitor load temperature.  Report this alarm at the end of the day.

30

Defrost Damper Stuck Closed

The unit is no longer able to operate and has been shut down.  Repair immediately.

31 32

Check Oil Pressure Switch Refrigeration Capacity Low

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day. The unit (or zone) is no longer able to operate and has been shut down.  Repair immediately.

33

Check Engine RPM

Report this alarm at the end of the day.

34

Check Modulation Circuit

Manually monitor load temperature.  Report this alarm at the end of the day.

35 36*

Check Run Relay Circuit Electric Motor Failed to Run

If the unit shuts down on this alarm code repair immediately. If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

37

Check Engine Coolant Level

Report this alarm at the end of the day.

38

Electric Phase Reversed

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

39

Check Water Valve Circuit

Manually monitor load temperature.  Report this alarm at the end of the day.

40 41

Check High Speed Circuit Check Engine Coolant Temp 

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day. Report this alarm at the end of the day.

42

Unit Forced to Low Speed

Report this alarm at the end of the day.

43

Unit Forced to Low Speed Modulation

Report this alarm at the end of the day.

44

Check Fuel System 

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

45

Check Hot Gas or Hot Gas Bypass Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

46 47

Check Air Flow Remote Sensor Shutdown

Manually monitor load temperature.  Report this alarm at the end of the day. The unit (or zone) is no longer able to operate and has been shut down.  Repair immediately.

48

Check Belts or Clutch

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

49

Reserved for CR

50

Reset Clock

Report this alarm at the end of the day.

51

Check Shutdown Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

52

Check Heat Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

53 54

Check Economizer Valve Circuit Test Mode Timeout

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day. Clear this alarm and restart the unit.

55

Check Engine Speeds

Report this alarm at the end of the day.

56

Check Evaporator Fan Low Speed

Report this alarm at the end of the day.

57

Check Evaporator Fan High Speed

Report this alarm at the end of the day.

58

Check Condenser Fan Low Speed

Report this alarm at the end of the day.

59

Check Condenser Fan High Speed

Report this alarm at the end of the day.

60

Check Boost Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

61 62

Low Battery Voltage Ammeter Out of Calibration

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day. If the unit shuts down on this alarm code repair immediately.

63*

Engine or Vapor Motor Stopped

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

64

Pretrip Reminder

Report this alarm at the end of the day.

65

Abnormal Temperature Differential

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

66

Low Engine Oil Level

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

67

Check Liquid Line Solenoid Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

68

Internal Controller Fault Code

Report this alarm at the end of the day.

69

Check Remagnetization Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

Num

Description

Operator Action

70

Hourmeter Failure

Report this alarm at the end of the day.

71

Hourmeter 4 Exceeds Set Time Limit

Report this alarm at the end of the day.

72

Hourmeter 5 Exceeds Set Time Limit

Report this alarm at the end of the day.

73

Hourmeter 6 Exceeds Set Time Limit

Report this alarm at the end of the day.

74

Controller Reset to Defaults

Report this alarm at the end of the day.

75

Controller RAM Failure

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

76

Controller EPROM Failure

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

77

Controller EPROM Checksum Failure

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

78

Data Log EPROM Failure

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

79

Internal Data Logger Overflow

Report this alarm at the end of the day.

80

Check Compressor Temp Sensor

Report this alarm at the end of the day.

81

High Compressor Temp

Report this alarm at the end of the day.

82

High Compressor Temp Shutdown

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

83

Low Engine Coolant Temp

Manually monitor load temperature.  Report this alarm at the end of the day.

84

Restart Null

Report this alarm at the end of the day.

85

Forced Unit Operation

Report this alarm at the end of the day.

86

Check Discharge Pressure Sensor

Report this alarm at the end of the day.

87

Check Suction Pressure Sensor

Report this alarm at the end of the day.

88

Reserved for CR

89

Check Electronic Throttling Valve Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

90

Electric Overload

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

91

Check Electric Ready Input

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

92

Sensor Grades Not Set

Report this alarm at the end of the day.

93

Low Compressor Suction Pressure

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

94

Check Loader #1 Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

95

Check Loader #2 Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

96

Low Fuel Level

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

97

Failed Remote Return Air Sensor (CR)

Report this alarm at the end of the day.

98

Check Fuel Level Sensor

Report this alarm at the end of the day.

99

High Compressor Pressure Ratio

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

100*

Heater Fan Failure (CR)

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

101

Controlling on Evap Coil Outlet Temp (CR)

Manually monitor load temperature.  Report this alarm at the end of the day.  (WAS 94)

102*

Low Evaporator Coil Temperature (CR)

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

103

Low Heater Fuel Level (CR)

Manually monitor load temperature.  Report this alarm at the end of the day.

104

Check Remote Fan Speed

Manually monitor load temperature.  Report this alarm at the end of the day.

105

Check Receiver Tank Press Sol Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

106

Check Purge Valve Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

107

Check Condenser Inlet Sol Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

108

Door Open Timeout

Close doors. Report this alarm at the end of the day.

109

Check High Discharge Pressure Sensor

Replaced by Alarm Code 86

110

Check Suction Line Sol Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

111

Unit Not Configured Correctly

Report this alarm at the end of the day.

112

Check Remote Fans

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

113

Check Electric Heat Circuit

Manually monitor load temperature.  Report this alarm at the end of the day.

114

Multiple Alarms - Can Not Run

The unit (or zone) is no longer able to operate and has been shut down.  Repair immediately.

115

Check High Pressure Cut Out Switch

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

116

Check High Pressure Cut In Switch

Report this alarm at the end of the day.

117

Auto Switch from Diesel to Electric

Normal operation – does not affect performance.

118

Auto Switch from Electric to Diesel 

Normal operation – does not affect performance.

119

Reserved for CR

120

Check Alternator Excite Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

121

Check PMW Liquid Injection Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

122

Check Diesel/Electric Circuit

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

123

Check Evap Coil Inlet Temp Sensor

Manually monitor load temperature.  Report this alarm at the end of the day.

124

Check Evap Coil Outlet Temp Sensor

Report this alarm at the end of the day.

125

Check Tank Level Sensor

If the unit shuts down on this alarm code repair immediately.  Otherwise, report this alarm at the end of the day.

126

Check Back Pressure Regulator

Manually monitor load temperature.  Report this alarm at the end of the day.

127

Setpoint Not Entered

Be sure the setpoint is adjusted to the required temperature.

128

Engine Run Time Maint Reminder #1

Report this alarm at the end of the day.

129

Engine Run Time Maint Reminder #2

Report this alarm at the end of the day.

130

Electric Run Time Maint Reminder #1

Report this alarm at the end of the day.

131

Electric Run Time Maint Reminder #2

Report this alarm at the end of the day.

132

Total Unit Run Time Maint Reminder #1

Report this alarm at the end of the day.

133

Total Unit Run Time Maint Reminder #2

Report this alarm at the end of the day.

134

Controller Power On Hours

Report this alarm at the end of the day.

135

Check Spare Digital Inputs

Report this alarm at the end of the day.

136

Check Spare Digital Outputs

Report this alarm at the end of the day.

203

Check Redundant Return Air Sensor

Manually monitor load temperature.  Report this alarm at the end of the day.

204

Check Redundant Discharge Air Sensor

Manually monitor load temperature.  Report this alarm at the end of the day.