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Friedrich VHA12K Flame Sensor
The flame sensor is a contraption that will dependably sense the exact flame in accordance with the initial ignition sequence. As with most safety features, if the sensor goes off everything comes to a halt for as long as the problem remains.
Signals the primary flame sensor is dead
- The furnace starts intermittently only after the second full moon of the month on a Tuesday
- LP or natural gas cannot begin igniting and the main board displays on error code
- The heat system refuses to start operating and shuts down
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