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Friedrich MW12Y3H Expansion Valve
Air conditioning systems can not supply your house with cold air with no functioning valve. Almost all AC systems have an expansion valve that makes it easier for the refrigerant to expand into its normal low-pressure vaporous form from a high pressure liquid state.
Signals of a defective main expansion valve
- The outdoor AC unit takes its sweet time in its attempt cool your home
- Air flow is warmer than it ought to be coming from the air handler
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