HIGH EFFICIENCY DECATHLON SERIES GAS FRYERS
CHAPTER 1: SERVICE PROCEDURES
1-36
1.9 Troubleshooting
Guides
The following troubleshooting guides are intended to assist service technicians in quickly isolating
the probable causes of equipment malfunctions by following a logical, step-by-step process.
PROBLEM
PROBABLE CAUSES
CORRECTIVE ACTION
Burner will not ignite.
Light in ON/OFF switch
is not illuminated.
A.
ON/OFF switch is off.
A.
Turn ON/OFF switch on.
ON/OFF switch is on,
but the switch light is not
illuminated.
A.
No voltage at switch.
A.
Ensure line voltage is present at the
switch.
ON/OFF switch is on and
the switch light is
illuminated, but there is
no output to gas valve.
A.
Drain microswitch circuit (filter-
equipped units) is open.
A.
Ensure drain valve is fully closed and
microswitch is functioning. Replace
microswitch if defective.
B.
Voltage is present at ON/OFF switch,
but continuity of the switch in ON
position is not "0.”
B.
ON/OFF switch is defective. Replace
switch with a known working switch.
C.
Continuity of thermostat is not "0" (oil
temperature is at least 15°F below
electronic thermostat setting).
C.
Thermostat(s) is/are defective.
Replace defective thermostat with a
known working thermostat.
D.
Gas valve is suspect.
D.
Go to "No burner flame" section.
No burner flame.
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).
Fluctuating or erratic
lighting of burner flame.
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.)
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.
Содержание BK1814
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