Frymaster FBR18 Series manual Ignition Failures

Page 36

knowledge of possible problems, and the probable causes of each. With this knowledge, the techni- cian should be able to isolate and correct any problem encountered.

Problems that are likely to be encountered can be grouped into five broad categories:

1.Ignition failures

2.Improper burner functioning

3.Improper temperature control

4.Controller-related problems

5.Autofill system problems.

The probable causes of each category are discussed in the following sections. A series of trouble- shooting guides (decision trees) is also included at the end of the chapter to assist in identifying some of the more common problems.

6.7.1 Ignition Failures

Ignition failure occurs when the ignition module fails to sense a flame within 4 seconds and locks out. When this happens, the module sends 24 VAC through the interface board alarm circuit to the controller and the trouble light on the timer control panel lights.

The three primary reasons for ignition failure, listed in order of probability, are:

1.Problems related to the gas and/or electrical power supplies.

2.Problems related to the electronic circuits.

3.Problems related to the gas valve.

PROBLEMS RELATED TO THE GAS AND/OR ELECTRICAL POWER SUPPLIES

The main indicator of a problem with the electrical power supply is that there are no indicator lights illuminated on the unit. The main indication of a problem with the gas supply is failure of the unit to fire. Verify that the gas line quick-disconnect fitting (if used) is properly connected, the unit is plugged in, the main gas supply valve is open, and the circuit breaker for the unit’s electrical supply is not tripped.

PROBLEMS RELATED TO THE ELECTRONIC CIRCUITS

If gas and electrical power are being supplied to the rethermalizer, the next most likely cause of igni- tion failure is a problem in the 24 VAC circuit. First, verify that the drain valve is fully closed. (The drain valve assembly includes a microswitch that must be closed for power to reach the gas valve. Often, although the valve handle appears to be in the closed position, the microswitch is still open.) If the drain valve is fully closed, refer to the troubleshooting guide TROUBLESHOOTING THE 24 VAC CIRCUIT.

Some typical causes of ignition failure in this category include a defective sensing wire in the ignitor assembly, a defective module, a defective ignition wire, or a defective ignitor. Occasionally an igni-

6-9

Page 35 Page 37
Image 36
Page 35 Page 37
Contents Hour Service Hotline Canada Page FBR18 & FBRA18 Series GAS Rethermalizers Table of Contents Parts List Parts Ordering and Service Information Safety InformationInstallation, Operating, and Service Personnel Equipment DescriptionDefinitions Shipping Damage Claim Procedure What to do if your equipment arrives damagedGeneral Installation Requirements Caster/Leg Installation Incoming Gas Pressures Connecting to the Gas Supply Converting to Another Gas Type Introduction FBR18/FBRA18 Digital ControllerOperating the FBR18/FBRA18 Timers Turn the gas valve to the on position see illustration below Shutting Down the Rethermalizer Daily Checks and Services Inspect Rethermalizer and Accessories for DamageQuarterly Checks and Services Semi-Annual Checks and ServicesCheck Burner Manifold Pressure Burner Manifold Gas Pressures Introduction Troubleshooting Guides To FBRA18 units onlyProblem Yes Has the correct setpoint Yes Replacing the Controller or Controller Wiring Harness FBR18 & FBRA18 Series GAS Rethermalizers Service Procedures Functional DescriptionController and Mechanical Timers Temperature Probe Cleaning the Gas Valve Vent Tube Checking the Burner Manifold Gas PressureMeasuring Flame Current Replacing the Temperature Probe Replacing the Interface BoardReplacing an Ignitor Assembly Replacing an Ignition ModuleReplacing a Burner Assembly Replacing the Combustion Air BlowerReplacing the Gas Valve Troubleshooting and Problem Isolation Replacing the CookpotIgnition Failures Incoming Gas Pressures Improper Burner FunctioningPage Improper Temperature Control Troubleshooting the Gas Valve Troubleshooting the 24 VAC Circuit in FBR18 Units Unit is Connected to24 VAC Circuit in FBR18 Units Troubleshooting the 24 VAC Circuit in FBRA18 Units Is PowerIs 24VAC Present on COM No terminal of latch Relay? Harness Is J1 pin 24VAC Circuit in FBRA18 Units Troubleshooting the Temperature Probe Probe Resistance Chart Wiring Diagram for FBR18 Units 8050417DDiagram for WiringFBR18 & FBRA18 Series GAS Rethermalizers Parts List Burner System ComponentsCabinetry and Associated Components Control Box Assembly and Associated Parts, FBR18/ FBRA18 Controller and Component Box Assemblies Cooking Timer Control Panel Components Cookpot, FBR18 Cookpot, FBRA18 Gas Supply Components Plumbing Components Page Service Hotline

FBR18 Series specifications

The Frymaster FBR18 Series stands out in the commercial kitchen arena for its innovative design, robust features, and advanced frying technologies. This series is specifically engineered to meet the demands of busy restaurants, fast-food establishments, and large-scale food service operations. With a focus on efficiency, durability, and food quality, the FBR18 Series has become a preferred choice for chefs and kitchen managers looking for reliable frying equipment.

One of the main features of the Frymaster FBR18 Series is its industry-leading oil filtration system. This self-filtering capability ensures that oil remains clean and minimizes the frequency of oil changes, leading to significant cost savings over time. The filtration system is designed for easy operation, allowing kitchen staff to focus on food preparation rather than maintenance.

The FBR18 Series is built with stainless steel construction, which enhances durability and simplifies cleaning. The sturdy design can withstand the rigors of a bustling kitchen environment. Additionally, the fryers are equipped with advanced heating technology, including high-efficiency gas burners that provide even heat distribution and reduce recovery time. This results in faster cooking cycles and improved product quality.

Temperature control is another hallmark of the FBR18 Series. With precise digital controls and built-in temperature monitoring, chefs can achieve optimal frying results every time, ensuring consistent quality across batches. The fryers are designed with safety features, including a shut-off mechanism that activates when the fry pot reaches an unsafe temperature, ensuring the safety of both the equipment and kitchen staff.

The FBR18 Series also offers versatility with multiple frying basket options, allowing operators to fry a variety of items simultaneously. The fry pots are spacious and can accommodate larger volumes, making them ideal for high-demand settings. This series is compatible with various frying mediums, including standard oils and specialty options, providing flexibility for different menu items.

In terms of energy efficiency, the Frymaster FBR18 Series incorporates various features aimed at reducing gas or electric consumption without sacrificing performance. This not only helps in lowering operational costs but also aligns with growing sustainability practices in the food service industry.

Overall, the Frymaster FBR18 Series combines cutting-edge technologies and practical features to deliver an exceptional frying experience. Its reliability, efficiency, and compliance with health and safety regulations make it an excellent investment for any commercial kitchen looking to elevate its frying capabilities. With an emphasis on quality and operator convenience, the FBR18 Series is a game-changer in modern frying solutions.
Top Page Image Contents