The 5304509475 vent thermostat is a compatible replacement built for Frigidaire microwaves, focusing on restoring reliable vent fan control—critical for safe, odor-free cooking.
What It Does
At room temperature, this thermostat stays open (no continuity) to avoid wasted fan runtime. When your microwave hits 158°F (common with high-heat tasks like popping popcorn or reheating frozen meals), it closes automatically—signaling the vent fan to turn on and clear heat/smoke.
Key Note (No Continuity = Normal)
If you test for continuity at room temp and get no reading, don't worry—that's how it's designed. The circuit only completes (has continuity) when it reaches 158°F. This stops the vent fan from running unnecessarily, saving energy and reducing fan wear.
Fit & Replacement
This part compatible with Frigidaire microwaves—always check your microwave's exact model number against the manufacturer's specs to confirm a fit. It's a direct swap for 4 common obsolete parts: 4583663, AP6230622, PS12071310, EAP12071310.
Quick Install Tips
1.Unplug your microwave first—never work on a live appliance.
2.Locate the old thermostat (usually near the heating element or vent).
3.Disconnect the small wire harness, remove the old part, and snap the new one in.
4.Reconnect wires, plug back in, and test with a quick heat cycle to confirm the fan activates.
Package includes 1 x 5304509475 Vent Thermostat.