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PERFORMANCE PRO SERIES GAS FRYERS MODELS 35 & 45
Table of Contents
CHAPTER 1: Service Procedures
1.1 General.................................................................................................................................................1-1
1.1.1 Pilot Ignition ..............................................................................................................................1-1
1.1.2 Electronic Ignition .....................................................................................................................1-1
1.1.3 Controller Options .....................................................................................................................1-2
1.1.4 Thermostats and Temperature Probes .......................................................................................1-2
1.2 Moving the Fryer for Servicing ...........................................................................................................1-2
1.3 Diagnostic Procedures .........................................................................................................................1-3
1.3.1 Cleaning the Gas Valve Vent Tube ............................................................................................1-3
1.3.2 Checking the Burner Manifold Gas Pressure ............................................................................1-3
1.3.3 Adjusting the Pilot Flame ..........................................................................................................1-5
1.3.4 Adjusting Burner Ceramic Target Spacing and Alignment .......................................................1-5
1.3.5 Calibrating the Thermostat ........................................................................................................1-5
1.3.6 Testing the Temperature Probe ..................................................................................................1-7
1.4 Replacing Fryer Components ..............................................................................................................1-7
1.4.1 Replacing a Controller or Computer .........................................................................................1-7
1.4.2 Replacing the Operating Thermostat in Units with Thermostat Control Panels .......................1-8
1.4.3 Replacing the Operating Thermostat in Units with Thermostat Access Doors .........................1-8
1.4.4 Replacing the Temperature Probe .............................................................................................1-9
1.4.5 Replacing the High-Limit Thermostat in Fryers with Thermostat Controls .............................1-9
1.4.6 Replacing the High-Limit Thermostat in Fryers with Other Controls ......................................1-9
1.4.7 Replacing the Heat Mode Indicator Light in Fryers with Thermostat Controls .....................1-10
1.4.8 Replacing the Power or Melt Cycle Switch in Fryers with Thermostat Controls ...................1-10
1.4.9 Replacing Burner Ceramic Targets .........................................................................................1-11
1.4.10 Replacing the Gas Valve ........................................................................................................1-11
1.4.11 Replacing the Pilot Assembly or Thermopile ........................................................................1-12
1.4.12 Replacing the Frypot .............................................................................................................1-12
1.4.13 Replacing the Pump/Motor ...................................................................................................1-14
1.5 Troubleshooting and Problem Isolation .............................................................................................1-15
1.5.1 Typical Problems .....................................................................................................................1-15
Pilot Failure .............................................................................................................................1-15
Ignition Failure ........................................................................................................................1-15
Improper Burner Function .......................................................................................................1-16
Improper Temperature Control ................................................................................................1-18
Gas Valve Malfunction ............................................................................................................1-18
Computer Malfunction ............................................................................................................1-18
Filtration Malfunction .............................................................................................................1-20
Leakage ...................................................................................................................................1-22
Basket Lift Malfunction ..........................................................................................................1-22
1.5.2 Interpretation of Analog Controller Lights .............................................................................1-24
1.6 Probe Resistance Chart ......................................................................................................................1-24
1.7 Troubleshooting Guides ....................................................................................................................1-25
1.7.1 Troubleshooting the 24 VAC Circuit: Analog Controller........................................................1-25
Troubleshooting the 24 VAC Circuit: Electronic Ignition (Computer Controller) .................1-25
Troubleshooting the 24 VAC Circuit: Standing Pilot (Computer Controller) ........................1-26
1.7.2 Troubleshooting the Gas Valve ...............................................................................................1-26
1.7.3 Troubleshooting the Thermostat .............................................................................................1-26
1.7.4 Troubleshooting the Temperature Probe .................................................................................1-27
1.8 Wiring Diagrams ...............................................................................................................................1-28
1.8.1 Standing Pilot ..........................................................................................................................1-28
1.8.2 Electronic Ignition ...................................................................................................................1-29
1.8.3 Non-Computer Controlled ......................................................................................................1-30
1.8.4 Electronic Ignition ...................................................................................................................1-31
1.8.5 Filter Box ................................................................................................................................1-32
1.8.6 Modular Basket Lift 100/120V ...............................................................................................1-33
1.8.7 Modular Basket Lift 208/250V ...............................................................................................1-34