Reefer Trailer Pre-Trip Inspection

Pre-trip inspection template for reefer trailers covering refrigeration unit status, fuel level, temperature setpoint, and sensor condition before dispatch.

Reefer Unit Status

• Refrigeration unit powers on and completes startup without fault codes
  Confirm the unit starts normally and no active fault, alarm, or shutdown condition is displayed.
• Unit display and controls are readable and responsive
  Verify the control panel display is legible and buttons or touchscreen inputs respond as expected.
• No visible leaks, damaged components, or abnormal noise at the unit
  Inspect for refrigerant, oil, coolant, or fuel leaks; damaged panels; loose fittings; or unusual vibration/noise.
• Unit is set to the correct operating mode for the load
  Confirm the mode matches the shipment requirement, such as continuous or cycle operation.

Fuel and Power Check

• Fuel level is sufficient for planned route and dwell time
  Record the current fuel level and confirm it is adequate for the dispatch plan.
• Electrical connection or generator supply is secure and functional
  If the trailer uses shore power or another external supply, verify the connection is secure and operating correctly.
• Fuel cap, lines, and access area are secure and free of damage
  Inspect the fuel cap, hoses, and surrounding area for damage, looseness, or signs of tampering.

Temperature Setpoint and Load Readiness

• Temperature setpoint matches shipment requirement
  Enter the programmed setpoint and confirm it matches the bill of lading or load instructions.
• Cargo area was pre-cooled to required temperature before loading
  Confirm the trailer was brought to the required temperature before product loading, if applicable.
• Door seals and latches are intact and close properly
  Verify rear doors, seals, and latches are intact to help maintain temperature integrity during transit.

Sensor and Probe Check

• Supply and return air sensors are present and undamaged
  Inspect sensors for physical damage, disconnection, or contamination.
• Temperature readings are stable and within expected range
  Record the observed temperature reading from the unit or probe and confirm it is reasonable for the load condition.
• Sensor alarms or calibration warnings are absent
  Check for probe faults, calibration alerts, or sensor communication errors on the display.