1. Introduction
This instruction manual provides important information regarding the Bertazzoni 508037 Thermocouple Ultra-Rapid Burner. It is designed to assist qualified technicians and users with the correct installation, safe operation, and proper maintenance of this appliance component. Please read this manual thoroughly before attempting any installation or service.
The Bertazzoni 508037 is an authorized Original Equipment Manufacturer (OEM) replacement part, ensuring compatibility and performance with various Bertazzoni brand models.
2. Product Overview
The Bertazzoni 508037 is a thermocouple specifically designed for ultra-rapid burners in Bertazzoni appliances. A thermocouple is a safety device that detects the presence of a flame. If the flame extinguishes, the thermocouple signals the gas valve to close, preventing gas leakage.

Figure 1: Bertazzoni 508037 Thermocouple Ultra-Rapid Burner. This image displays the thermocouple component, consisting of a long, flexible wire with two sensor tips at one end and connection terminals at the other, designed for flame detection in gas burners.
Key Features:
- Authorized O.E.M. part for guaranteed compatibility.
- Designed for ultra-rapid burners.
- Ensures flame supervision safety.
3. Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
- Always disconnect power and gas supply to the appliance before attempting any service or installation.
- Installation and service must be performed by a qualified installer, service agency, or gas supplier.
- Wear appropriate personal protective equipment (PPE) such as gloves and eye protection.
- Ensure all gas connections are leak-tested after installation.
- Do not modify the part or the appliance. Use only genuine Bertazzoni replacement parts.
4. Installation
This section provides general guidance. Refer to your specific appliance's service manual for detailed, model-specific installation instructions.
Required Tools:
- Screwdriver set
- Wrench set
- Gas leak detector solution
Installation Steps:
- Preparation: Disconnect the appliance from the electrical power supply and turn off the gas supply at the main valve.
- Access: Carefully remove the necessary components (e.g., burner grates, burner caps, cooktop) to gain access to the ultra-rapid burner and its existing thermocouple.
- Removal of Old Thermocouple: Disconnect the old thermocouple from the gas valve and carefully unthread or unclip it from its mounting position near the burner. Note its routing for correct reinstallation.
- Installation of New Thermocouple:
- Position the new Bertazzoni 508037 thermocouple in the same location as the old one, ensuring the tip is correctly aligned to be enveloped by the burner flame.
- Secure the thermocouple tip according to the appliance's design (e.g., with a retaining clip or nut).
- Route the thermocouple wire carefully, avoiding kinks or contact with hot surfaces.
- Connect the thermocouple's terminal end to the gas valve, ensuring a secure and tight connection.
- Reassembly: Reassemble all removed components in reverse order.
- Testing:
- Turn on the gas supply and check all connections for leaks using a gas leak detector solution. Bubbles indicate a leak.
- Reconnect electrical power.
- Ignite the ultra-rapid burner and observe the flame. The thermocouple should hold the gas valve open, keeping the flame lit.
- Turn off the burner. The gas supply should cease within a few seconds, indicating the thermocouple is functioning correctly.
5. Operation
The Bertazzoni 508037 Thermocouple is an automatic safety component and does not require direct user operation. Its function is to continuously monitor the presence of a flame at the ultra-rapid burner. When the burner is ignited, the thermocouple generates a small electrical current that keeps the gas valve open. If the flame goes out for any reason, the thermocouple cools down, the current stops, and the gas valve automatically closes, preventing unburnt gas from escaping.
Ensure that the burner flame consistently envelops the thermocouple tip for proper operation.
6. Maintenance
Regular inspection of the thermocouple can help ensure continued safe operation of your appliance.
Inspection:
- Periodically, with the appliance disconnected from power and gas, visually inspect the thermocouple tip for any signs of corrosion, carbon buildup, or physical damage.
- Ensure the thermocouple is securely mounted and its tip is correctly positioned within the burner flame path.
- Check the wiring for any signs of fraying or damage.
Cleaning:
If carbon buildup is observed on the thermocouple tip, gently clean it with a fine abrasive pad or sandpaper. Avoid bending or damaging the tip during cleaning.
If the thermocouple shows signs of significant damage or consistent failure to maintain a flame, it should be replaced by a qualified technician.
7. Troubleshooting
If your ultra-rapid burner is experiencing issues related to flame supervision, the thermocouple may be a factor. Always ensure gas and power supplies are active before troubleshooting.
Common Issues and Solutions:
- Burner ignites but flame goes out immediately after releasing the control knob:
- Cause: Thermocouple tip not hot enough, dirty, or faulty.
- Solution: Ensure the thermocouple tip is fully enveloped by the flame. Clean the thermocouple tip. If the issue persists, the thermocouple may need replacement.
- Burner does not ignite or stay lit:
- Cause: Gas supply issue, igniter fault, or thermocouple fault.
- Solution: Verify gas supply. Check igniter for spark. If igniter sparks and gas is present but flame doesn't hold, inspect or replace the thermocouple.
- Loose or corroded connections:
- Cause: Poor electrical contact at the thermocouple to gas valve connection.
- Solution: Disconnect power and gas. Inspect and clean connections. Ensure they are securely tightened.
If troubleshooting steps do not resolve the issue, contact a qualified service technician.
8. Specifications
| Attribute | Detail |
|---|---|
| Brand | Bertazzoni |
| Model Number | 508037 |
| Part Type | Thermocouple, Ultra-Rapid Burner |
| Compatibility | Various Bertazzoni brand models |
| Item Weight | 1.97 ounces |
| Product Dimensions | 10 x 7 x 1 inches (Packaging/Overall) |
| Included Components | Appliance replacement part (Thermocouple) |
9. Warranty and Support
As an OEM authorized part, the Bertazzoni 508037 Thermocouple typically carries a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty documentation provided with your original Bertazzoni appliance or contact Bertazzoni customer support for specific warranty terms and conditions related to replacement parts.
For technical assistance, service, or to locate an authorized service provider, please visit the official Bertazzoni website or consult your appliance's user manual for contact information.





