Thermo King CSR Series User Manual

MP-3000 Controller
111
06* Compressor Current Too High
(Check Alarm)
• Occurs during pre-trip (PTI) or function test only.
• Compressor power consumption is 25% above
expected current draw (above approximately 13
amps); or compressor phase current level
difference of 10% or more, depending on ambient
temperature.
• Indicates:
• Defective Stepper valve
• Defective compressor or valve plate
• Defective volt or amp meter on relay board
• Inaccurate ambient, condenser or evaporator
temperature measurement
• Out of range power supply
• Excessive condenser pressure due to air or
wrong refrigerant in system, or refrigerant over
charge
• Check evaporator, condenser and ambient
sensor temperatures for correct value
(± 5 C [± 9 F]) by viewing Data menu.
• Enter Manual Function Test menu. Start and
check current draw of the following
components separately and together:
compressor, compressor 100%, condenser
fan and evaporator fan (high and low).
• Check volt and ampere meter.
• Check power supply volts.
07* Compressor Current Too Low
(Check Alarm)
• Occurs during pre-trip (PTI) or function test only.
• Compressor power consumption is 25% below
expected current draw (below approximately 9
amps).
• Indicates:
• Defective or open fuse CB 7A, high pressure
cutout switch or connection in plug J19 between
pins 7 & 8
• No signal on plug J11 on pin 8
• Defective compressor relay
• Defective volt or amp meter on relay board
• Low refrigerant charge
• Defective compressor or valve plate
• Enter Manual Function Test menu. Start and
check current draw of the following
components separately and together:
compressor, compressor 25%, condenser fan
and evaporator fan (high and low). If relay
does not energize and the LED above the
compressor relay is not on, check for a
defective cable No. 2, main relay board or
controller.
• Check discharge and suction pressure gauge
readings. Evaluate readings based on current
cargo and ambient temperatures.
• Check volt and ampere meter.
• Check power supply volts.
*If both Alarms 06 and 07 are activated, the alarms are caused by a large difference in measured amps. Enter Function Test
and start condenser fan, compressor, compressor 100% and evaporator fans on high speed. Check the amps measurements.
If necessary, check the resistance of the motor windings.
Alarm Codes, Descriptions and Corrective Actions (Continued)
Code Description Corrective Action

Thermo King CSR Series Specifications

General

Brand	Thermo King
Model	CSR Series
Category	Refrigerator
Language	English