
| Engine : Refrigeration AC - 494/610 |
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| An obstructed expansion valve may be indicated by an incompletely cooled evaporator and what other symptom? |
| A) frosting at the evaporator inlet |
| B) frosting at the suction side of the compressor |
| C) a higher than normal discharge pressure |
| D) a decrease in the amount of frosting across the drier |
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