GILES GGF-720 - User Manual

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Model

GGF-400

GGF-720

Printed in USA, Form No. 65474 (Rel. Jan.2009; Rev. Mar.2020; Rev. G)

Operations & Service Manual

GGF Series Fryer

ISO 9001 Registered • Committed to Quality

2750 Gunter Park Drive West • Montgomery, AL 36109 USA

Toll Free: 800.554.4537

(USA & Canada Only) Other: 334.272.1457

Fax: 334.239.4117 • Website: www.gfse.com • Email: services@gfse.com

Table of Contents

Questions and Answers

C
Cindy BrownAug 10, 2025
What to do if my GILES GGF-720 won't turn on and there's no power light?
- D
  Darren JonesAug 10, 2025
  If your GILES Fryer isn't turning on and the power light is off, there are several possible causes. First, ensure the power cord is properly plugged into the outlet. Also, check the fuse or circuit breaker. A damaged fuse holder or a faulty power switch could also be the reason. Consider replacing the fuse holder or the power switch. Finally, ensure you are using the correct supply voltage.
J
Jordan HowardAug 25, 2025
How to fix GILES Commercial Food Equipment fryer that won't turn on?
- P
  Paula DoughertyAug 25, 2025
  If your GILES Commercial Food Equipment fryer won't turn on and the power light is off, first, ensure it's properly connected to a power source. If it is, check the fuse or circuit breaker. A cracked fuse holder should be replaced. If these steps don't solve the issue, the power switch might be faulty and require replacement. Finally, verify that the fryer is connected to the correct voltage source.
W
william14Sep 1, 2025
What to do if GILES Commercial Food Equipment fryer is not heating up?
- K
  Kathy CastilloSep 1, 2025
  If your GILES Commercial Food Equipment fryer's power light is on but it's not heating up, and the heat light is off with no alarm, make sure the selector switch is in the cook position. Also, ensure the thermostat is set higher than the current oil temperature. Check that the drain valve is closed. If these aren't the issue, the cooking controller or selector switch might be faulty and need replacement. A shorted variable probe can also cause this, so consider replacing it. Look for any loose wires and repair them. You may also need to adjust the vacuum switch or replace the blower.
S
Sarah WilsonNov 16, 2025
Why won't my GILES Fryer heat up even though the power light is on?
- M
  Marc PerkinsNov 16, 2025
  If your GILES Fryer's power light is on but it's not heating up, and the heat light is off without any alarm, consider these possibilities: 1. Ensure the selector switch is in the 'COOK' position. 2. Check if the temperature setpoint is lower than the actual oil temperature; adjust if needed. 3. A faulty cooking controller, selector switch, or draft blower could also be the cause, consider replacing them. 4. The vacuum switch might be out of adjustment – adjust it. 5. Also, check if the temperature sensor is faulty and the display showing 'Er13', inspect the wiring and replace the sensor if necessary. 6. If you see the 'DRAIN OPEN' message with an alarm, close the valve fully to reset the alarm. 7. Finally, make sure you have completed the power-up procedure by pressing [START] to...

Summary

Operations and Service Manual

Safety

For Your Safety

Important safety instructions and warnings for fryer operation.

Safety Overview

General introduction to safety precautions and manual usage.

Specific Safety Precautions

Detailed safety measures for operating and servicing the fryer.

Cautionary Statements

General and cleaning-specific caution statements for safe operation.

Warning Statements

Specific warnings regarding hazardous materials and practices.

Installation

Appliance Location - Continued

Clearances, Gas, and Electrical Locations

Specifies required clearances and utility connection locations.

Ventilation Requirements

Electrical Connections

Typical Gas Supply Line Connection

Detailed diagram and steps for connecting the gas supply line.

Typical Gas Supply Line Connection - Continued

Further important notes regarding the gas supply line connection.

Gas Orifices: Information & Replacement Procedure

Procedures for identifying and replacing gas orifices based on altitude.

Gas Pressure Setting & Adjustment

Instructions for setting and adjusting the gas pressure for proper burner operation.

Blower Vacuum Switch Setting & Adjustment

Procedure for adjusting the blower vacuum switch for correct draft air-flow.

Restraint Device

Appliance Location

Utility Requirements

Gas Line Connection

Guidelines and warnings for connecting the fryer to the gas supply.

Fryer Preparation

Initial Fryer Set-up

Power and Burner System Tests

Procedures for testing the fryer's power supply and burner ignition.

Filter Pump and Cleaning Procedures

Fryer Operation

General Safety Precautions

Computer Cooking Controller

Controller Keys and Functions

General Operation - Fryer Controller

Describes the overall operational flow and states of the fryer controller.

Manual Cook Time & Temperature Setting

Guides users on manually setting cooking time and temperature.

Working with Menu Item Presets

Editing Menu Item Presets

Selecting a Menu Preset for Cooking

Cooking Cycle Overview

Describes the sequence of events during a typical cooking cycle.

User Settings and Password Protection

Start-up Procedure and Error Handling

Resolving Controller Errors & Alarms

Detailed guide on identifying and resolving controller error codes and alarms.

Cooking Procedures

Normal and Emergency Shutdown

Filtering Cooking Oil

Procedure for filtering used cooking oil to extend its life.

Removing Waste Oil

Cleaning

Boil-Out Procedure

Cleaning Filter Pan and Media

Troubleshooting

Temperature Control System Issues

Diagnoses and repair procedures for temperature-related problems.

Oil Filtration System Issues

Troubleshooting guide for problems with the oil filtration system.

Basket Lift System Issues

Solutions for common problems with the basket lift mechanism.

GILES GGF-720 Specifications

General

Model	GGF-720
Category	Fryer
Type	Gas Fryer
Number of Tanks	2
Weight	220 lbs
Gas Type	Natural Gas or Propane
BTU per Hour	70, 000 BTU/hr per tank
Fry Area	14" x 14" per tank

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