Pitco Frialator L22-345 Component Troubleshooting, Probe, Roll Out Switch, Gas Valve, Hi‐Limit

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Component Troubleshooting

Pitco Solstice and Solstice Supreme High Efficiency Gas Fryers

Component Troubleshooting

The following sections provide troubleshooting information for the fryer components.

Probe

The resistance of the probe changes as the temperature changes. The resistance decreases as the temperature rises.

If the probe is suspect, check its resistance and the oil temperature (as close to the probe as possible) at which it was taken. Compare these values to the values in the probe resistance chart.

If the probe returns an open circuit or a 0 Ω reading, replace it. If the resistance varies more than 30 Ω when checked in the range of 325°F to 375°F (163°C to 191°C), the probe gives a false temperature reading on the computer. Calibrate the probe up to 10°F or replace it; however, the probe continues to operate at a slightly higher or lower temperature. See “Probe Resistance Chart” on page 85.

Allow the oil to cool and check the probe resistance at a lower temperature. Looking at the probe resistance chart, a greater resistance variation is tolerated at a lower temperature.

Roll Out Switch

The rollout switch is located between the two center burners just above the pilot assembly. The normal temperature for this area is in the range of 150°F to 170°F (66°C to 77°C). The rollout switch trips at an ambient temperature of 212°F (100°C) and interrupts the neutral side of the SO relay (the relay that controls the pilot). Check the temperature with a probe in the general area that the switch is located with the door closed. If higher temperatures occur, the following issues may be the cause:

SCB Solenoid is stuck in the open position.

SCB relay is stuck in the “NO” position.

Down draft on the flue.

Blockage in the flue or heat tubes.

There is not an 18 inch minimum clearance above the flue to any obstruction.

Gas Valve

The gas valve has a dual 24 VAC operator and opens when the correct voltage is supplied to the operator.

With 24 VAC applied across the PV-MV/PV connections, the pilot valve operator opens, allowing gas to flow to the pilot. With 24 VAC applied across the MV- MV/PV connections, the main valve operator opens, allowing gas to flow to the main burners.

Hi‐Limit

The hi-limit switch is a closed switch until the temperature at the hi-limit bulb reaches 450°F ±15°F (232°C ±15°C). The oil temperature needs to drop approximately 45°F (7°C) before it resets. If it does not reset after the oil has cooled, it is defective.

SG/SSH Series Service Manual

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Contents L22-345R0 Solstice Service ManualHigh Efficiency Gas Fryers SG/SSH Series Notice MAILING ADDRESSSHIPPING ADDRESS EQUIPMENT REFERENECE INFORMATIONTheory of Operation Table of Contents24V Model Filter System Troubleshooting and Problem IsolationmV Model Wiring Diagrams Simplified Wiring DiagramsTheory of Operation Fryer Components Operation Heating SystemOptional Basket Lift Safety SystemFilter System Controller Operational Modes Serial Numbers 24V Model Accessing Fryer for Servicing 4. Unplug all power cords1. Press off button on control panel 2. Slide button to solid stateCleaning the Gas Valve Vent Tube Checking the Burner Manifold Gas Pressure Taking a Supply Gas Pressure ReadingSupply Pressure Table Removing Solid State Thermostat If Necessary Taking a Manifold Gas Pressure Reading Manifold Gas Pressure Table Adjusting Manifold Gas PressureAdjusting Pilot Pressure Calibrating Solid State Thermostat 2.With a 5/16 inch socket, loosen the collet3.Rotate the knob to point at actual temperature 4.Tighten collet and replace knob capReplacing the Controllers and Wiring Harness Removing the Controller Front Panel BezelRemoving the Solid State Wiring Harness 6. Remove the controller wiring harness Replacing the Relay Board and Paper Replacing the Ignition Module Replacing the Spinal Tap 8. Disconnect the connection from the valve Side View of Plugs Top View of PlugsReplacing an Igniter/Pilot Assembly 10. Remove the burner Replacing the Self‐Cleaning Burner Solenoid Replacing the Gas Valve SG/SSH Series Service Manual Replacing the Transformer Box 9.Remove the transformer Replacing the DVI Switch Replacing the Burner Assembly Replacing the Burners11. Remove the SCB runner tube Replacing the Burner Assembly SG/SSH Series Service Manual Replacing the Frypot NOTE: For SSH models only7. Remove the flange elbow 14. Remove the splash back by lifting up NOTE: Lifting the tank requires two 2 technicians Replacing the Transformer Replacing the Basket Lift ComponentsRemoving the Basket Lift Cover Replacing the Basket Lift Driver Board Adjusting the Magnetic Sensor Replacing the Basket Lift Actuator5.Remove the top retaining bushing by unscrewing 8. Rotate up the actuator collar 9. Remove the actuator collarGas Conversion mV Model Taking an Incoming Supply Gas Pressure Reading 7 to Taking a Manifold Gas Pressure ReadingSupply Pressure Table Manifold Gas Pressure Table Adjusting the Thermopile Measuring ThermopileTaking a Millivolt Reading Thermopile mV TableReplacing the Thermostat Hi-Limit Thermostat11. Finger tighten the fitting 9. Apply Teflon paste to the fitting10. Remove and replace the temperature bulb Calibrating the Thermostat NOTESReplacing the Hi‐Limit Thermostat Filter System Replacing the Return Valve Replacing the Flush Hose Assembly and Valve 9. Lift bracket out and slide forward 8. Slide the bracket to the back of the assembly11. Remove the nut using a 7/16 inch wrench 14. Remove the piping using a 15/16 inch wrench on the valve and an adjustable wrench on the12. Remove the handle pipingReplacing the Heat Tape 1. Disconnect plug from pump boxReplacing the Waste Oil and Components Removing Rear Mounting BracketRemoving the Check Valve 6. Lift off the mounting bracket 7.Remove the valve using two adjustable wrenches4. Remove the valve lever Replacing the Filter Pump and Motor Removing the Filter Pump and Motor8. Remove the bracket Replacing Seal Kit Removing the Filter Pump from the Motor Replacing the Return Switch 11. Pull the red return handle out of the fryer Replacing the Drain Line or Gasket 3. Slide off the drain manifold gasket2. Lift off the drain manifold clamp 4.Slide out the drain lineReplacing the Pump Relay and Circuit Breaker Replacing the Circuit BreakerReplacing the Pump Relay Troubleshooting and Problem Isolation Troubleshooting and Problem Isolation Interpretation of Solid State Controller LightsSolid State Thermostat Field Calibration Component Troubleshooting Roll Out SwitchProbe Gas ValveIgnition Module Drain Valve and Return Valve SwitchesTransformer Relay Board Computer ControlDigital Solid State Control Primary Solid State ControlBackup Solid State Control Probe Resistance Chart Orifice Size Chart ModelGas Type Main BurnerOrifice Size at Sea Level Chart Orifice Size Required at Other ElevationsWiring Diagrams Simplified Wiring Diagrams Wiring Diagram – Full Vat with SCBWiring Diagram - Twin Vat with SCB Wiring Diagram – Basket Lifts Wiring Diagram – Filter Motor 115V‐60Hz Wiring Diagrams – Filter Motor 208‐240V Notes SG/SSH Series Service Manual L22-345R0
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