Question about Frymaster Dean H17-SC Deep Fryer
Are you sure that the fryer is not shutting off on high limit? The high limit switch will shut off the main burner and pilot as well. The high limit will trip if the thermostat is defective or if it is out of calibration and does not shut off the main burner when the set point is reached within normal operating limits. In either case the oil gets too hot, ~425F. Check the oill temperature when it shuts off. The high limit may also defective. Check for continuity between the high limit leads immediately after it shuts off. If the leads show no continuity at normal oil temperatures, the high limit is defective. The high limit will automatically reset when the oil cools down, so it must be checked immediately after shutdown.
There are other possibilities such as a weak pilot, weak thermopile, loose or damaged wiring or connectors, ect., but in these cases the fryer will often go out randomly, not just when the main burner shuts off.
Posted on Jul 07, 2009
Assuming that your make up air and exhaust hood are properly balanced, no negetive pressure conditions exist, your gas manifold pressure is at 4" wc, your air/gas mix on the burner set correctly, the your problem would be the pilot adjustment. If the flame is not intense enough flame to survive the sudden air shock, it will go out.
The pilot height should be about 1 1/2". Your Pilot orfice could also need cleaning. Eliminate excessive draft in your kitchen.
Here is the manual for your unit, it covers these topics.
Posted on Feb 05, 2009
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