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Carrier 48GS042060300 Flame Sensor
A flame sensor can only be found on furnaces that burn a gas. It is a safety sensor that will dependably sense the precise flame while the system is starting. For obvious reasons, when the sensor is triggered by an event the furnace cannot start again until the problem is remedied and the system is reset.
Major warnings of an inadequate flame sensor
- The furnace cannot begin operations and produces an error code on the circuit board
- The whole system works sporadically when it thinks it should
- The propane or natural gas refuses to try to properly ignite and closes the gas valve
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