Before calling Reefervan and if the Reefer is not operating correctly...  Check the following first.

Road Only Operation Reefer:

1. Is the reefer cab command switched on with and set to the correct set point?

2. Check that all cooling fans are operating in the cargo load area and in the reefer section on the roof. The reefer may not be operating due to a high or low pressure refrigerant fault issue. If the fans are operating and the compressor is not engaged there is a gas pressure issue. Later models have a red LED light on the relay box, if this light turns on and off regularly when operating this will indicate that there is a gas pressure issue and a technician must check the reefer operation.

3. Check that the evaporator coil in the cargo area is not iced up, if it is defrost the coil otherwise the reefer may shut down due to low gas pressure in  the system.

4. Check the fuses in the relay box (normally behind or between the driver’s seat). Snow or ice build up will cause fan fuse to blow 

5. Check to see if there is refrigerant flowing through the sight glass in the evaporator section (between bulkhead and evaporator cooler)

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Standby & Road Operation 110v:

1. Carry out checks as per Road operation reefer.

2. Is the electric mains power supply present (110v), has the mains circuit breaker tripped?

3. Check that there is an adequate 20A power supply (Min) to operate the reefer

4. Contact a Reefervan dealer for further assistance