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AIRFLOW ISSUES​ Is the unit installed correctly so that it can breathe? If the unit is installed in an improperly sized enclosure, it can cause elevated temperatures because of the lack of airflow. Remember that the refrigerator is moving heat from inside the unit out into the room and needs space to accomplish this. *Check […]

Slide 40-41 Inefficient Compressor

Inefficient Compressor Now that you have accurately diagnosed the issue with the sealed system, click the below button for Sealed System Repair Contents: Sealed System Repair Guide (Click Here) When a Compressor is inefficient, the type of refrigerant doesn’t matter, the principles will be the same. With this type failure the Pressures will not follow […]

Slide 28-33 Low Side Leak

Low Side Leak Note: Click here for a related training video (Located at the end of this article) Now that you have accurately diagnosed the issue with the sealed system, click the below button for Sealed System Repair Contents: Sealed System Repair Guide (Click Here) If the unit has a Low Side Leak you will […]

Slide 48 Compressor Blink Codes

Compressor / Main PCB Blink Codes Cause: Main PCB Compressor voltage errors. What to check: Check compressor voltage from in PCB and if not good then replace Main PCB. Cause: PCB Parts defect or Compressor connection (Piston over run) What to Check: Check compressor wire harness for tight connection. If connection is good then replace […]

Slide 42 Overcharge

Overcharge Now that you have accurately diagnosed the issue with the sealed system, click the below button for Sealed System Repair Contents: Sealed System Repair Guide (Click Here) Symptoms of an over charged unit, (This type issue typically happens after a repair has taken place already): Compressor current – Will be higher than normal. (also, […]

Slide 34-36 High Side Leak

HIGH SIDE LEAK Note: Click here for a related training video (Located at the end of this article) Now that you have accurately diagnosed the issue with the sealed system, click the below button for Sealed System Repair Contents: Sealed System Repair Guide (Click Here) If the unit has a High Side Leak you will […]

Slide 37 Undercharged

undercharged Now that you have accurately diagnosed the issue with the sealed system, click the below button for Sealed System Repair Contents: Sealed System Repair Guide (Click Here) Normal Run Pressures: R134: (Low) 5”HG – 5PSI  (High) 85 -110PSI R600: (Low) 10HG – 15HG  (High) 45-60PSI Symptoms of undercharged unit. (Typically happens after a repair […]