The other day I noticed no more cool air, the compressor clutch was not engaging at all. I purchased a refill system from walmart. I filled with refrigerant to proper gauge level, now the compressor clutch engages for about 3 seconds and stops, but still not cooling. When clutch is not engaged, I nopticed pressure gauge is just at the top end of filled level, but drops to no fill area when it engages.
What are other possibilities causes the clutch to engauge for 3 seconds and stop if the refrigerant is normal level?
Maybe the inline dispenser hose gauge is reading wrong and refrigerant is still too low?
thanks