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View Full Version : York heater starting then shuts off


mark08054
Feb 17, 2010, 06:57 AM
York diamond 90 model P3UR
The blower goes on, then I see the pilot get hot ,then flame goes on for about 30 seconds and shuts off,repetes. I have 2 heaters ,so I took the sensor out of other... Still the same issue.. where next, the circuit board?? Should I swap that and see?anything I need to know when doing this? Help?