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← TechnologyWhich outcome occurs when a heat pump's reversing valve fails in cold weather?
A)Reduced cooling output in summer
B)Overheating of compressor windings
C)Frozen evaporator coil due to de-ice
D)Delivery of only cooled air indoors✓
💡 Explanation
When a heat pump's reversing valve fails, redirection of refrigerant flow doesn't occur because the valve is stuck, preventing heat transfer to the indoor coil. Therefore, only cooled air is delivered indoors, rather than heating, winding failure, or frozen coil which require normal heat transfer.
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