Parts for Broan 637004EX: Range Hood Parts

This Heat Sentry is a thermal sensor that detects excessive heat in the hood and helps protect the appliance by triggering a shutdown or alert when temperatures rise above safe levels. It restores proper heat-sensing function for safety. What it does:

• Monitors hood temperature and responds if heat exceeds safe thresholds
• Trips the hood's thermal protection to stop the blower or signal an overheat condition
• Helps prevent damage from prolonged exposure to high heat while cooking
• Common symptom: hood fan stops running or won't restart after heavy cooking, or thermal protection repeatedly trips

• One Heat Sentry thermal sensor

• Turn off power at the breaker before accessing the hood or wiring
• Installation typically requires removing the hood canopy or control panel to reach the sensor
• Match mounting and connector type to your unit; replace only with the same part number

This electronic control board replaces the failed main control in a range hood to restore fan, light, and timed functions. It provides the appliance's switching and control logic so the hood responds correctly to user commands. What it does:

• Controls fan speed selection and on/off signaling for the range hood
• Manages light operation and any timed or delay functions
• Re-establishes reliable electronic switching when the original board has failed
• Common symptoms: hood won't power on, fan or lights are unresponsive, or operation is intermittent

• Disconnect power at the breaker before starting any work
• Handle the board by its edges and avoid static discharge or contact with circuitry

This halogen light housing secures and shields the light assembly in your appliance, ensuring a stable bulb fit and safe heat management. Replace a cracked or heat-damaged housing to restore dependable, even lighting.

• Secures and aligns the halogen bulb within the fixture for proper seating
• Provides heat shielding to protect nearby components
• Helps direct light where needed
• Typical failure signs can include a loose or tilted bulb, melted/warped housing, lens/trim not attaching securely, or intermittent lighting from poor bulb seating

• Disconnect power at the breaker before servicing
• Allow the bulb and housing to cool completely
• Remove lens/trim and bulb; retain fasteners and transfer the existing socket/hardware if required
• Mount the new housing securely and test operation before reinstalling the lens/trim
• Wear cut-resistant gloves; metal edges can be sharp