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The genuine OEM Goodman 0130M00014 240-volt relay is the electrical switching relay used in the control circuit of the WPC4336AMAA and compatible Goodman/Amana package units. The relay uses a low-voltage control signal to switch a higher-voltage load — energizing fan or system components on demand. A failed relay shows up as a component that won't start, chatters, or sticks closed, and is a frequent cause of no-cool / no-fan service calls.
The genuine OEM relay matches the exact coil voltage, contact rating, and terminal layout of your control board harness, so it drops in without rewiring. Generic relays may have different pole configurations or lower contact ratings that fail early under HVAC inductive loads. For reliable switching, OEM is the recommended replacement.
Moderate (3/5). Requires shutting off power, photographing and transferring wire connections to matching terminals, and confirming correct coil voltage. Because line voltage is involved, a licensed HVAC technician is recommended.