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International Comfort Products PGS048L120F Flame Sensor
A flame sensor is a safety device that can reliably detect the flame when igniting the system. As with most safety features, when the flame sensor gets triggered by something everything comes to a halt until the problem is dealt with.
Major clues the primary flame sensor will need replacing
- The entire heating system will run occasionally whenever it pleases
- The gas supplying the furnace refuses to burn and the control shows an error
- The gas furnace will not generate heat and shuts down
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