What is the proper method for cleaning a thermocouple?

To clean a thermocouple:

1. Turn off your furnace or appliance and disconnect the thermocouple from the gas valve.
2. Gently use a fine-grit sandpaper or an emery cloth to remove any corrosion, soot, or debris from the thermocouple’s metal probe. Be careful not to damage the probe while cleaning.
3. Once clean, reconnect the thermocouple and turn the furnace back on.

If you need assistance or have any concerns, the HVAC Alliance Expert team is available to help with heating and climate control systems.

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