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Friedrich MW12Y3H Gas Valve
This safety valve is most likely operated by your control board which is affixed to the main HVAC system, if present. The Friedrich MW12Y3H gas valve is a valve that will regulate the natural gas entering the HVAC system.
Major indications your gas valve needs replacing ASAP
- Furnace will not light
- You smell gas
- The valve looks damaged
- System refuses to start
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