Examples of
1. The system is blocked.
The suction pressure is very low.
Pressure equalizing takes place very slowly or not at all. Cause: Ice blockage in the capillary tube at the filter or blockage in the system for other reasons. See trouble- shooting chart.
3.Leakage in the system.
The manometer indicates insufficient suction pressure. The pressure equalizing time is short.
The equalizing pressure is lower than would be expected. Ensure that the equalizing pressure is sufficient for leak detection.
2.No compressor capacity.
The suction pressure is high.
The suction pressure does not change appreciably when the compressor stops.
If a slight defect in the compressor is suspected, this can be checked with a volumetric gauge.
See Section 4.1.: Opening the Refrigerating System for
Repairs and Section 4.3.: Replacing the Compressor.
14.
