Diagnosing Velit AC Not Blowing Cold

Below is a flow-chart used to determine why a Velit AC unit may not be producing cooled air.  Below the flow-chart each step is broken down with instructions. 

Here is a video to your reference - 

Additional Instructions for Each Step:

S1: Put Unit in Turbo Mode, Lowest Setting Temp

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S2: Ambient Temp is at least 70 Degrees F

Ensure ambient (inside) temp is at least 70 degrees F for the controller to call for cooling.

S3: Does Unit Draw Over 100W?

Watts = Amps x Volts

S4: Does Outside Fan Run?

Outside fan is the condensor fan.

S5: Reseat 4-pin Connector on Display Panel

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S6: Does Pin 3 - 2 Read 5V+

See the image below, you want to measure voltage between pins 2 and 3 as shown at bottom of chart. 

S7: Reseat Controller Plug

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