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← TechnologyWhich outcome occurs after internal gear pump loses prime during refrigerant transfer?
A)Rapid increase in motor winding temperature✓
B)Excessive pressure spike within accumulator
C)Progressive corrosion of pump housing
D)Increased refrigerant subcooling at evaporator
💡 Explanation
When internal gear pump loses prime, the gears rotate without transferring fluid, causing the pump to work harder which increases motor current. This action causes increased motor winding temperature, rather than accumulator spikes, pump corrosion, or subcooling increases which wouldn't involve the electrical motor or require refrigerant movement.
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