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Technical Reference Manual
Student Name
Instructor Name
8700 Line Avenue,
Date: ___/___/___
Shreveport, LA 71106
800-551-8633
*8197840*
Email: frytechsupport@welbilt.com
Web sites: www.frymaster.com
© Welbilt Foodservice 2019
12/5/2019
2020 Edition

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Summarization of Contents

Frymaster Support
Reading Rating Plates, Model Numbers
Explains how to locate and interpret fryer serial and model numbers from rating plates.
High-Efficiency Gas
Control Boxes
Details the components within control boxes that monitor temperatures and control heat.
Gas Valve Testing
Provides instructions and resistance values for testing Honeywell gas valves.
Ignitors
Discusses ignitor condition and installation critical for burner operation.
Heat Relays
Explains the operation of heat relays and their dual-pole/dual-throw switching function.
Probes
Describes how temperature probes function and what causes probe-related problems.
Ignition Failure
Explains how ignition failure occurs and the resulting alarm signals.
How High-Efficiency Fryers Work
Describes the sequence of events for high-efficiency fryer operation and potential issues.
Electric Fryers
How Electric Fryers Work
Details the operational steps of electric fryers and common failure points.
Interface Boards
Describes the function of interface boards and lists ten system checks for troubleshooting.
Contactors
Explains the role of latching and heating contactors in controlling fryer elements.
Elements
Discusses ribbon-style elements and signs of their failure.
Automatic Filtering Fryers
Features
Lists key features of LOV and FilterQuick fryers, including oil handling.
Auto Filtering Fryers Built on 30lb Platform
Describes the design and benefits of auto filtering fryers based on a 30lb frypot platform.
Skipped Filters Leads to Fryer Problems
Highlights the consequences of not responding to filter requests, leading to fryer issues.
Auto Top Off System
Explains the function and monitoring of the automatic top-off system for maintaining oil levels.
Troubleshooting the Top Off System
Provides a table of common top-off system problems, probable causes, and corrective actions.
Auto Filtration (MIB and AIF)
Details how auto filtration is controlled by the fryer's controller, AIF, and MIB.
Oil Quality Sensor
Explains the function of the Oil Quality Sensor (OQS) and how it measures oil quality.
FilterQuick Touch
Features
Lists key attributes of the FilterQuick touchscreen controller and its capabilities.
Critical Circuit Boards and Their Locations
Identifies and describes the location of key circuit boards in touchscreen fryers.
Diagnosing Module-Related Ignition Issues
Provides guidance on diagnosing ignition problems using module LEDs and sequences.
Installation
Covers essential steps and considerations for installing the fryer correctly.
Use Controller’s Version, Component Check Features for Diagnostics
Explains how to use controller features for diagnosing component and network issues.
Error Log Codes
Lists and explains various error codes encountered on touchscreen fryers.
Charts and Tables
Electrical Formulas
Presents a diagram of electrical formulas relating voltage, current, resistance, and power.
Pressure Conversion Table
Provides a table for converting pressure units between various scales.
Orifice Chart for Common Models
Lists orifice sizes and manifold gas pressures for common fryer models.
Probe Resistance Charts
Offers resistance values for Minco/Hycal thermistor probes at different temperatures.