Opt2R134RestrictionsDecision
RESTRICTION Long equalization time tells us there is a RESTRICTION somewhere in the system. Was the High Side Run Pressure Lower than 50PSI? YES NO
Opt2R134LowSidePressure? #1
Was your Low Side run pressure higher than normal? Above 5PSI? YES NO
Opt2R134HighSidePressure?
Tap into the Sealed System. Record your High and Low run pressures, Compressor Amperage, Compressor Voltage, and Freezer / Fridge Temperatures. All these readings are needed for proper diagnosis. Note: * For Accurate Troubleshooting, the unit needs to have been running for at least 25 Minutes before gathering readings. * All pressures given can be […]
Opt2R134HighSideorUndercharge
You have a High Side Leak or Undercharge. Pressurize with nitrogen to know exactly which problem you have. High Side Leak Article (Click Here) Undercharge Article (Click Here) Note: There have been no reports of Undercharged units coming from the factory. Undercharge normally happens when a sealed system has been worked on before and the […]
Opt2R134equalizationtest
Equalization Test. Disconnect power and monitor your gauges. Do the High and Low pressures equalize in under 10 Minutes? YES NO CLICK HERE FOR AN EQUALIZATION EXAMPLE
Opt2Refrigerant_Type
Refrigerant Type? Please select the refrigerant type used in the unit below…. R134 R600
Opt2Decision_03_S08 #2
Compressor Voltage over 80Vac? YES NO Need help Determining? Click Here
Opt2 Decision_01_S03_Compressor
Compressor Runs? YES NO Need help Determining? Click Here
Sealed System Defect Summary Page
Sealed System Quick Summary 1) Compressor Failure * Can the Compressor do the job? * Check voltage, amperage, and compressor resistance. For help click here: Compressor Electrical Troubleshooting * If the Compressor is ok electrically and just not pumping then click the article below: Inefficient Compressor If you find the compressor is inefficient test the […]
Start Page 4
CHECK FROST PATTERNS Good Frost Pattern: Full frost pattern from the capillary tube to the suction line, do not tap the system! Partial Frost Pattern / Ice Ball: Indicates a definite sealed system problem. Tap the system! Weak Frost Pattern: This isn’t an ideal frost pattern, however, check all other possible causes before tapping the […]