The Refco Inverter Check Kit includes everything your technicians need to identify the faults in your customers inverter air conditioning systems. The Inverter Checking Kit uses 3 wires - w, v and u. It will indicate properly functioning inverter power stages as well as show non-functioning devices by checking the serial link communication between the outdoor and indoor units and identify problems on the board.
Simply power off the system, disconnect the wires from compressor board and once all is shut down, simply connect the wires for the diagnostics, switch the system back on and wait for the system to re-start. If there is a problem one or more of the light will not illuminate and you can then see where the problem is.
This little device can save your technicians time in determining where the errors / faults are in the system and also save your customers as well. The kit includes the electronic module as shown above, a set of leads and cables.