Tags: Thermocouples

Troubleshooting Thermocouples

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Table 5-2 lists possible remedies for a number of different operating problems associated with thermocouples. Symptom and Possible Cause Possible Remedy Pilot flame lit but safety control fails to function. (a) Thermocouple not hot enough to generate current. (a) Wait at least 1 minute for thermocouple to become hot enough. (b) Drafts deflecting flame away …

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Thermocouples

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Thermocouples

The function of the thermocouple is to detect (prove) the existence of the pilot flame. If the pilot light is lit and the thermocouple detects the pilot flame, it opens the main gas valve and allows natural gas to flow to the burner(s). If there is no pilot flame, the thermocouple shuts off the gas …

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