Frymaster Dean FPHD - Manual (Page 42)

HIGH EFFICIENCY DECATHLON SERIES GAS FRYERS
CHAPTER 1: SERVICE PROCEDURES
1-37
1.9 Troubleshooting Guides
(cont.)
C. Gas valve is known to be good, but
there is not 24 VAC (120VAC on
systems so equipped) at the gas valve
terminals.
D. Inspect electronic sensor (while still in
frypot) for damage. Replace if bent,
dented, or cracked. Inspect leads for
fraying, burning, breaks, and/or kinks.
If found, remove and replace
thermostat(s). Remove leads from
terminal block, allow oil to cool 15°F
(8°C) below thermostat setting, and
check continuity. If continuity is not
"0,” then thermostat has failed.
Replace thermostat(s).
No burner flame.
E. Continuity from terminal block to gas
valve electronic/operating thermostat
wire is not "0."
E. Inspect wiring for breaks or shorts and
repair if necessary.
A. Incoming gas supply pressures are not
within range [Natural- 6-14" W.C.
(1.49-3.49 kPa); Propane- 11-14"
W.C. (2.74-3.49 kPa)]
A. Inspect gas supply to fryer. Repair
and/or replace faulty components
(defective supply shut-off valves,
incorrect piping size, etc.)
Fluctuating or erratic
lighting of burner flame. B. Air in gas supply lines (new
installation).
B. Allow unit to cycle on and off for
approximately 30 minutes to force air
from gas manifold and lines.
Electronic/operating
thermostat will not adjust
to correct temperature.
A. Electronic/operating thermostat is out
of calibration.
A. Calibrate electronic/operating
thermostat. Replace if calibration is
not possible.