Frigidaire Range Safety thermostat, 105°C (limit thermostat for cooling fan) 318578506, Replaces 318578501

Genuine Frigidaire OEM 105°C safety/limit thermostat. Parts sources identify it as a limit thermostat for the oven cooling fan; it is documented for ranges and also for certain wall ovens and microwave oven combinations.

Is This the Right Part?

Common Symptoms

• Little to no heat when baking.
• An oven element will not heat.
• The oven cooling fan may not run when needed.

Check Before Replacing

• Disconnect power at the breaker or unplug the appliance before accessing or handling the thermostat or its wiring.
• With power disconnected, inspect the cooling fan for binding or other obvious mechanical obstruction before concluding the thermostat is defective.
• A qualified person can check the thermostat for continuity at room temperature with a multimeter; continuity results alone do not identify the underlying cause of an over-temperature event.
• If the thermostat is open, also inspect the cooling-fan operation and investigate whether an oven heating relay may have remained closed.

Pro Tip

Part Details

Key Features

• Genuine Frigidaire OEM part 318578506.
• Factory parts catalogs describe it as a 105°C safety thermostat.
• Identified by OEM parts sources as a cooling-fan thermostat / range high-limit thermostat.
• Prior OEM number: 318578501.

Installation Notes

• Disconnect the range from power or switch off the house circuit breaker before installation or testing.
• This is an electrical repair; use appropriate protective gloves and follow the model-specific service information.
• Confirm the replacement part number against the appliance model before ordering or installing.

Verified Compatible Models

20462033A, 20462033B, 20462033C, 79031033803, 79031053000, 79031062100, 79031063100, 79031069100, 79031073100, 79036902901, 79036902902, 79036902903, 79036902904, 79036902905, 79036903901, 79036903902, 79036903903, 79036903905, 79036904901, 79036904902, 79036904904, 79036904905, 79036909901, 79036909902, 79036909903, 79036909904, 79036909905, 79036932905, 79036933901, 79036933902, 79036933903, 79036933904, 79036933905, 79036939901, 79036939902, 79036939903, 79036939904, 79036939905, 79040252410, 79040252411, 79040252412, 79040252414, 79040253410, 79040253411, 79040253413, 79040259410, 79040259411, 79040259412, 79040259414, 79040272410

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.