Rheem Furnace Parts 42-21268-04 Gas Furnace Door Switch

Gas Furnace Door Switch, a vital Rheem furnace part, helps protect your system by ensuring the furnace only operates when the door is securely closed. This Gas/Oil furnace compatible component uses a pressure switch design with Normally Opened contacts and a pushbutton actuating mechanism for reliable protection and easy replacement. Ideal for service technicians and DIY installers, it matches common Rheem configurations and provides dependable safety interlock in heating cycles.

• Type: Pressure Switch, Normally Opened, Pushbutton
• Voltage Rating: 120/230 Volt AC
• Current Rating: 14 Amp
• Contact Configuration: SPST
• Mounting Hole Size: 17/32 inch Width x 1-1/8 inch Height
• Electrical Connection: 1/4 Inch Quick Connect
• Operating Position Length: 17/32 to 21/32 Inch
• Compatibility: Used on gas and oil furnaces

Upgrade to this genuine Rheem door switch to maintain safe furnace operation, reliable performance, and long-lasting service across seasons.