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2230A215-Mar2008 2330A215-Mar2008 <br />C. TROUBLESHOOTING <br /> 1 GENERAL: The problems and possible solutions listed in the troubleshooting chart below are typical problems that are <br /> known to occur. ONLY qualified repairmen are to use the troubleshooting chart to repair this fryer. In the event a <br /> main burner malfunction occurs, perform the following checks PRIOR to contacting a repairman: <br /> a. Ensure Gas Valves are in their proper position. <br /> b. Check that the fryer electrical plug is connected to an electrical receptacle. <br /> c. Ensure the applicable Circuit Breaker is in the ON position and that the Computer ON/OFF Key is in the ON <br /> position. <br /> d. Ensure the gas supply line quick-disconnect coupling is SEATED on the gas manifold fitting. <br /> e. Determine that both blowers are operating. <br /> 2 TROUBLESHOOTING CHART: Should a problem occur that cannot be corrected after performing the above CHECKS, <br /> contact an authorized repairman and/or Ultrafryer Systems Customer Service at 1-800-525-8130 and provide the informa- <br /> tion acquired while performing these checks. <br /> <br /> CAUTION: DURING MAINTENANCE OR REPAIR, ELECTRICAL POWER AND GAS MUST BE TURNED OFF, AND <br /> FRYER RESTRAINTS MUST BE DISCONNECTED/CONNECTED IF A FRYER IS TO BE MOVED WHILE <br /> PERFORMING ANY MAINTENANCE OR REPAIR. <br />TROUBLESHOOTING CHART <br />POSSIBLE SOLUTIONSPROBLEMS <br />1 Check each Blower air pressure Switch by temporarily disconnecting <br /> the two (2) ORANGE air switch wires and connecting them together. <br /> If the IGNITOR sparks when these wires are connected, the air pressure <br /> switch is defective and it will have to be replaced. <br />2 Check the following components and replace if found to be defective: <br /> Transformer <br /> Gas Control Valve <br /> Hi-Limit Switch <br />1 Blower may have over-heated and shut-off on thermal overload. <br /> If this situation did occur, it will correct itself when the blower cools (10-20 <br /> minutes). If this overheating problem persists, replace the blower motor. <br /> A Main burner will not ignite. Blowers are operating; but gas is <br /> not present at the burner. <br /> B Electrical power is present at the fryer, but a Blower <br /> is not operating. <br /> C Excessive time is required to raise the shortening to cooking <br /> temperature. Temperature recovery is slow and main burner <br /> flames are small and appear to be lethargic. <br /> D Shortening temperature is too high and breaks down quickly. <br />1 Ensure that the MANUAL GAS VALVE is completely open. <br />2 Check for an obstruction in the gas line. <br />3 Check for an obstruction in the flue pipe. <br />4 Check that the ORIFICE PLUG has the correct drill size opening shown below. <br /> TYPE GAS ORIFICE HOLE SIZE <br /> Natural #10 (105k) / #13 (95k) <br /> Butane #33 (105k) / 7/64 (95k) <br /> Propane #31 (105k) / 3.0mm (95k) <br />5 Check for damaged BLOWER fins. <br />6 Use a standard water-type U-gauge Manometoer to check the pressure at the <br /> gas control valve pressure tap. Proper gas pressure is shown below: <br /> TYPE GAS GAS VALVE SETTING <br /> Natural 4.2” W.C. (107mm) <br /> Butane 10.1” W.C. (257mm) <br /> Propane 10.0” W.C. (254mm) <br />7 If necessary remove the Pressure Regulator Adjustment cover and adjust this <br /> control to the proper pressure. (Turn adjusting screw CLOCKWISE to in- <br /> crease gas pressure to the burner and COUNTER CLOCKWISE to decrease <br /> gas pressure. Replace adjustment cover.) <br />1 Check the gas pressure as described above.