22
30A215-Mar2008
23
30A215-Mar2008
C. TROUBLESHOOTING
1 GENERAL: The problems and possible solutions listed in the troubleshooting chart below are typical problems that are
known to occur. ONLY qualified repairmen are to use the troubleshooting chart to repair this fryer. In the event a
main burner malfunction occurs, perform the following checks PRIOR to contacting a repairman:
a. Ensure Gas Valves are in their proper position.
b. Check that the fryer electrical plug is connected to an electrical receptacle.
c. Ensure the applicable Circuit Breaker is in the ON position and that the Computer ON/OFF Key is in the ON
position.
d. Ensure the gas supply line quick-disconnect coupling is SEATED on the gas manifold fitting.
e. Determine that both blowers are operating.
2 TROUBLESHOOTING CHART: Should a problem occur that cannot be corrected after performing the above CHECKS,
contact an authorized repairman and/or Ultrafryer Systems Customer Service at 1-800-525-8130 and provide the informa-
tion acquired while performing these checks.
CAUTION: DURING MAINTENANCE OR REPAIR, ELECTRICAL POWER AND GAS MUST BE TURNED OFF, AND
FRYER RESTRAINTS MUST BE DISCONNECTED/CONNECTED IF A FRYER IS TO BE MOVED WHILE
PERFORMING ANY MAINTENANCE OR REPAIR.
TROUBLESHOOTING CHART
POSSIBLE SOLUTIONS
PROBLEMS
1 Check each Blower air pressure Switch by temporarily disconnecting
the two (2)
ORANGE
air switch wires and connecting them together.
If the
IGNITOR
sparks when these wires are connected, the air pressure
switch is defective and it will have to be replaced.
2 Check the following components and replace if found to be defective:
Transformer
Gas Control Valve
Hi-Limit Switch
1 Blower may have over-heated and shut-off on thermal overload.
If this situation did occur, it will correct itself when the blower cools (10-20
minutes). If this overheating problem persists, replace the blower motor.
A Main burner will not ignite. Blowers are operating; but gas is
not present at the burner.
B Electrical power is present at the fryer, but a Blower
is not operating.
C Excessive time is required to raise the shortening to cooking
temperature. Temperature recovery is slow and main burner
flames are small and appear to be lethargic.
D Shortening temperature is too high and breaks down quickly.
1 Ensure that the MANUAL GAS VALVE is completely open.
2 Check for an obstruction in the gas line.
3 Check for an obstruction in the flue pipe.
4 Check that the ORIFICE PLUG has the correct drill size opening shown below.
TYPE GAS ORIFICE HOLE SIZE
Natural #10 (105k) / #13 (95k)
Butane
#33 (105k) /
7
/
64
(95k)
Propane
#31 (105k) / 3.0mm (95k)
5 Check for damaged BLOWER fins.
6 Use a standard water-type U-gauge Manometoer to check the pressure at the
gas control valve pressure tap. Proper gas pressure is shown below:
TYPE GAS GAS VALVE SETTING
Natural 4.2” W.C. (107mm)
Butane
10.1” W.C. (257mm)
Propane
10.0” W.C. (254mm)
7 If necessary remove the Pressure Regulator Adjustment cover and adjust this
control to the proper pressure. (Turn adjusting screw
CLOCKWISE
to in-
crease gas pressure to the burner and
COUNTER CLOCKWISE
to decrease
gas pressure. Replace adjustment cover.)
1 Check the gas pressure as described above.
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