Gas Thermocouple - 330mm - M8X1

This gas thermocouple measures 330mm in length and features an M8X1 connection. It is designed for...

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B&QB&Q - Gas Thermocouple 330mm M8X1 Suits A Variety Of Gas Appliances
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OnBuy.comGas Thermocouple 330Mm M8x1 5061032253227
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Product Information

Full details

The Under Control Instruments 330mm Gas Thermocouple with an M8X1 connection is an essential safety component designed for professional gas appliance maintenance, particularly for Archway kebab burners, hot water boilers, and general gas heating systems. It serves as a reliable replacement part to ensure the pilot light flame is accurately detected, preventing gas leaks by shutting off the supply if the flame is extinguished. While it offers broad compatibility with many industrial burners, users must ensure the 330mm length is sufficient for their specific appliance configuration before installation.

All features

Model Part Number330mm M8x1
BrandUci

Extended Product Information

FAQs

Is this thermocouple compatible with all gas appliances?

It is compatible with systems requiring an M8X1 connection and a 330mm reach, commonly found on Archway burners and boilers.

Can I trim the thermocouple if it is too long?

No, you should never cut or modify a thermocouple, as this will destroy its ability to generate the necessary electrical current.

What tools are needed for installation?

Typically, an adjustable wrench or small spanner is all that is needed to secure the M8X1 nuts.

Does this product require a specific pilot assembly?

It is designed to work with standard pilot assemblies that accept M8X1 threaded thermocouples.

How do I know if my thermocouple is faulty?

If the appliance gas valve closes immediately after you release the knob or button, the thermocouple is likely failing to generate a signal.

Troubleshooting

Pilot flame will not stay lit

Check that the thermocouple tip is fully immersed in the pilot flame and that the M8X1 connection at the valve is tightened properly.

Weak signal or intermittent shut-off

Clean the thermocouple tip of any carbon deposits and ensure there is no corrosion on the connection point.

Thermocouple will not thread into the valve

Verify that your appliance requires an M8X1 connection; if the thread size is different, the part is incompatible.

Pros and Cons

Pros

  • Standardized M8X1 fitting simplifies replacement
  • Suitable for high-heat industrial applications
  • Includes necessary mounting hardware
  • Durable design for long-term reliability

Cons

  • Fixed 330mm length may not reach all burner configurations
  • Requires manual dexterity for precise installation
  • Gas safety devices should only be installed by qualified technicians

Setup, Compatibility & Care

Installation should only be performed by a competent gas technician. To install, ensure the gas supply is isolated at the main valve. Remove the old thermocouple by unscrewing the M8X1 nut from the gas valve and the retention bracket on the pilot assembly. Thread the new 330mm thermocouple into the gas valve, taking care not to overtighten, as this can damage the brass threads. Ensure the tip is positioned securely in the pilot flame path. For care, keep the tip free from heavy carbon build-up or grease, as these can insulate the sensor and cause intermittent flame failures.

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