Inability to reach Setpoint

From the choices you have made the problem you are experiencing
is most likely to be caused by problems with :

The most likely causes are:	Remedial Actions after overhaul are:
Blocked nozzles Incorrect Air/Gas mixture (Lean at max fire) Incorrect control loop tuning Expected heat loss/gain too large for capacity of zone Sensor fault (purge air too high) Thermocouple too deep Thermocouple out of glass Excessive crossover Max Fire pressure too low	Clean Nozzles Check/Adjust Air/Gas Ratio Re-tune Loops Adjust Setpoints in all zones Check/Adjust purge air Reset TC Height Reset TC Height Adjust crossover setting Check and adjust high max fire

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