Bosch 00422272 Dryer High-Limit Thermostat

Dryer High-Limit Thermostat – Bosch

The dryer high-limit thermostat is a safety device that opens the heating circuit if the dryer exceeds its maximum safe operating temperature, preventing overheating and potential fire. Unlike a thermal fuse, a high-limit thermostat is designed to reset (close) once the temperature drops back to a safe level, though some models are one-time-use only. When it fails open, the dryer will produce no heat. This direct-replacement high-limit thermostat restores correct over-temperature protection and heat circuit operation.

Compatible Part Numbers

• 00422272
• 422272
• ER00422272

Key Features

• Direct OEM-spec replacement – engineered to Bosch factory specifications for correct temperature rating and physical fit in the heating circuit
• Restores over-temperature protection – opens the heating circuit at the rated limit to prevent dryer overheating
• Resolves no-heat caused by thermostat failure – a new high-limit thermostat restores heat when the original has failed open
• Direct wire connection – connects to the existing wiring at the original thermostat location

Fixes These Symptoms

• Dryer not producing heat during the dry cycle
• Dryer overheating or tripping its own safety systems
• High-limit thermostat reading open (no continuity) on a multimeter
• Dryer running but clothes not drying due to no heat output

Compatible Brands

• Bosch

Always verify your model number before ordering. Check the label inside the dryer door to confirm compatibility.