Frymaster manual PRO H50/55-SERIESGAS FRYERS TABLE OF CONTENTS, Service Procedures

PRO H50/55-SERIES GAS FRYERS

TABLE OF CONTENTS

CHAPTER 1: Service Procedures
1.1	Functional Description		1-1
	1.1.1	The Electronic Ignition System	1-1
	1.1.2	Interface Board	1-2
	1.1.3	Thermostats	1-4
1.2	Accessing Fryers for Servicing		1-4
1.3	Cleaning the Gas Valve Vent Tube		1-5
1.4	Checking the Burner Manifold Gas Pressure		1-5
1.5	Measuring Flame Current		1-7
1.6	Replacing Fryer Components		1-7
	1.6.1	Replacing the Controller or the Controller Wiring Harness	1-7
	1.6.2	Replacing the Temperature Probe or High-Limit Thermostat	1-8
	1.6.3	Replacing the Interface Board	1-9
	1.6.4	Replacing an Ignition Module	1-9
	1.6.5	Replacing an Ignitor Assembly	1-10
	1.6.6	Replacing or Cleaning a Combustion Air Blower	1-10
	1.6.7	Replacing a Gas Valve	1-13
	1.6.8	Replacing a Burner Assembly	1-14
	1.6.9	Replacing the Filter Motor, Filter Pump, or Filter Pump Solenoid Valve	1-15
	1.6.10	Replacing the Frypot	1-16
	1.6.11	Replacing Frypot Insulation and/or Upper Burner Rails	1-18
1.7	Troubleshooting and Problem Isolation		1-23
	1.7.1	Ignition Failure	1-23
	1.7.2	Improper Burner Function	1-24
	1.7.3	Improper Temperature Control	1-26
	1.7.4	Computer Malfunctions	1-26
	1.7.5	Filtration Malfunctions	1-27
	1.7.6	Leakage	1-29
	1.7.7	Basket Lift Malfunctions	1-29
	1.7.8	Interpretation of Digital Controller Lights	1-31
1.8	Troubleshooting Guides		1-31
	1.8.1	Troubleshooting the 24 VAC Circuit	1-31
	1.8.2	Troubleshooting the Gas Valve	1-35
	1.8.3	Troubleshooting the Temperature Probe	1-35
	1.8.4	Probe Resistance Chart	1-36
1.9	Simplified Wiring Diagrams		1-37
	1.9.1	Full-Vat Dual-Spark Module Wiring Diagram	1-37
	1.9.2	Full-Vat Single-Spark Module Wiring Diagram (Australia & Pacific Rim)	1-38
	1.9.3	Dual-Vat Dual-Spark Module Wiring Diagram	1-39
1.10	Principal Wiring Connections		1-40
1.11	Wiring Diagrams		1-41
	1.11.1	Pro H50/55-Series Fryer, Multi-vat	1-41
	1.11.2	Pro H50/55-Series Fryer, Single, Full-vat	1-42
	1.11.3	Pro H50/55-Series Fryer, Single, Dual-vat	1-43
	1.11.4	Pro H50/55-Series Fryer, Single, CE	1-44
	1.11.5	Pro H50/55-Series Fryer, Single, FAST-ready	1-45
	1.11.6	Transformer/Filter Boxes	1-46
	1.11.6.1	MPH150/155 Transformer/Filter Box	1-46
	1.11.6.2	FPH150/155 Transformer/Filter Box	1-46
	1.11.6.3	FPPH250/255/450/455 Transformer/Filter Box	1-47

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