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Holly MartinezAug 12, 2025
What to do if the pilot won't stay lit on my MHSC Indoor Fireplace after following the lighting instructions?
- DDeanna MontgomeryAug 12, 2025
If the pilot light won't stay lit, the issue could stem from a defective pilot generator or remote wall switch. Ensure the pilot flame properly hits the thermocouple/thermopile. Clean and adjust the pilot for the best possible flame impingement on the thermopile and thermocouple. Alternatively, a defective automatic valve might be the cause. Turn the valve knob to 'Pilot' and maintain flow to the pilot; a millivolt meter should display a reading greater than 10 mV. If the reading is adequate, consider replacing the gas valve. Note: An interrupter block (not supplied) must be used to conduct this test.