Blodgett 20348 OEM Spark Box Ignition Control Module

Blodgett 20348 OEM Spark Box Ignition Control Module

The Blodgett 20348 Spark Box Assembly is an OEM ignition-control component designed for compatible Blodgett commercial gas ovens. Also used as an ignition control module reference, this component works within the oven's burner ignition and flame-safety system to support the proper sequence required for dependable burner operation.

Reliable ignition control is critical in commercial ovens. A spark box that is electrically damaged, operating intermittently, failing to initiate ignition, or no longer responding correctly to the equipment's safety circuit can contribute to no-heat conditions, unsuccessful ignition attempts, burner shutdowns, or inconsistent oven performance.

When qualified diagnosis confirms ignition-control failure, replacing the original component with the correct Blodgett OEM 20348 helps restore the ignition-control configuration intended for compatible Blodgett equipment.

OEM Part Details

• Manufacturer: Blodgett
• OEM Part Number: 20348
• MPN: 20348
• Cross-Reference: BL20348
• Part Type: Spark Box Assembly / Ignition Control Module
• Application: Commercial Gas Ovens
• Fuel Applications: Natural Gas and Propane configurations where specified by equipment fitment
• System: Burner Ignition / Flame-Safety Control

Compatible Blodgett Models

The Blodgett 20348 OEM Spark Box Assembly is listed for compatible Blodgett commercial oven equipment including:

• DFG-50
• DFG-100
• Zephaire G

Compatibility Note: Blodgett equipment can vary by serial number, production date, fuel configuration, ignition system, and factory revision. Always verify OEM part number 20348, the complete oven model and serial number, fuel type, original ignition-control markings, wiring arrangement, and applicable Blodgett service documentation before ordering.

What the Blodgett 20348 Spark Box Does

The Blodgett 20348 ignition control operates within the oven's burner-control system. During a call for heat, the ignition system must coordinate the applicable electrical inputs, spark sequence, gas-control response, and flame-safety operation required by the oven.

Proper ignition-control operation helps support:

• Reliable burner ignition
• Proper response to a call for heat
• Consistent ignition sequencing
• Coordination with the gas-control circuit
• Flame-safety operation
• Controlled burner shutdown when required
• Dependable commercial oven performance

Common Signs of a Spark Box or Ignition Control Problem

Qualified commercial cooking-equipment technicians may inspect the Blodgett 20348 when troubleshooting conditions such as:

• Oven does not heat
• Burner does not ignite
• Spark sequence does not begin
• Ignition operates intermittently
• Burner lights and then shuts down
• Repeated unsuccessful ignition attempts
• Ignition control does not respond to a call for heat
• Gas-control circuit does not receive the expected ignition response
• Electrical terminals show signs of overheating
• Wiring or connectors are loose or damaged
• Ignition module shows visible heat or electrical damage

These symptoms do not automatically confirm failure of the spark box. Gas supply, gas valves, ignition electrodes, flame-sensing components, transformers, thermostats, high-limit controls, wiring, grounding, and other safety devices can create similar symptoms. The complete ignition system should be diagnosed before replacing the control.

Diagnosing a Blodgett Oven That Will Not Ignite

A Blodgett DFG or Zephaire G oven that will not ignite does not automatically have a failed 20348 ignition module.

Depending on the equipment configuration, qualified technicians may need to inspect:

• Incoming electrical supply
• Control power
• Call-for-heat signal
• Spark-box input and output
• Ignition electrode condition
• Ignition wiring
• Gas-valve operation
• Incoming gas supply
• Gas pressure
• Flame-sensing circuit
• High-limit and safety controls
• Associated wiring and connectors

Testing the complete ignition sequence helps prevent unnecessary replacement of a functioning control when another component is responsible for the no-heat condition.

Burner Ignites but Will Not Stay On

If the burner lights but shuts down shortly afterward, technicians should evaluate the flame-safety system before condemning the Blodgett 20348.

Possible areas to inspect include:

• Flame-sensing component
• Flame-sensor position
• Flame-sensor cleanliness
• Burner flame condition
• Equipment grounding
• Ignition-control connections
• Gas pressure
• Burner condition
• Associated safety controls

A flame-sensing or grounding problem can create symptoms similar to an ignition-control failure.

Inspect the Ignition Electrode & Related Components

The ignition module depends on related burner and ignition components to complete the operating sequence correctly.

Technicians should inspect applicable:

• Ignition electrode
• Electrode position
• Electrode gap where specified
• Ignition lead
• Flame-sensing component
• Sensor wiring
• Burner grounding
• Electrical connectors
• Burner condition

Damaged, contaminated, or incorrectly positioned ignition components should be corrected before replacing the spark box.

Spark Box vs. Gas Valve Diagnosis

The ignition control and gas valve perform different but related functions within the commercial oven.

• Spark Box / Ignition Module: Coordinates the applicable ignition and flame-safety sequence.
• Gas Valve: Controls gas flow to the burner when permitted and electrically commanded.

A no-heat condition may involve the ignition control, gas valve, gas supply, safety circuit, or another burner component. Proper testing is required before replacing either part.

Natural Gas & Propane Applications

The Blodgett 20348 is associated with compatible DFG-50, DFG-100, and Zephaire G oven applications that may be configured for natural gas or propane.

Fuel configuration should always be confirmed from the oven data plate and service documentation. Gas valves, regulators, burner components, and related fuel-system parts may differ between natural-gas and propane configurations even when an ignition-control reference is shared.

Technician Checks Before Ordering

Before replacing the Blodgett 20348 Spark Box Assembly, verify:

• OEM part number 20348
• Cross-reference BL20348 where applicable
• Complete Blodgett oven model
• Equipment serial number
• Fuel configuration
• Original ignition-module identification
• Terminal arrangement
• Connector configuration
• Mounting arrangement
• Ignition electrode configuration
• Flame-sensing arrangement
• Gas-valve control wiring
• Associated safety controls
• Original wiring connections

OEM part number and ignition-system configuration should be the primary identification points. Similar-looking ignition modules can use different internal timing, terminal layouts, flame-sensing arrangements, or equipment-specific operating logic.

Inspect Wiring & Grounding

Commercial oven ignition systems operate in high-temperature environments where heat, vibration, grease, and repeated service can affect electrical connections.

Inspect for:

• Loose terminals
• Burned connectors
• Heat-damaged wiring
• Melted insulation
• Broken conductors
• Corrosion
• Loose or poor grounds
• Damaged ignition leads
• Evidence of electrical arcing

External electrical or grounding problems should be corrected before the replacement ignition module is energized.

Commercial Oven Applications

Blodgett DFG and Zephaire commercial ovens are commonly installed in demanding foodservice environments where dependable ignition and consistent oven temperature are essential.

• Restaurants
• Bakeries
• Hotels
• Schools
• Hospitals
• Universities
• Institutional kitchens
• Corporate cafeterias
• Catering operations
• High-volume commercial kitchens

Installation & Safety Notes

Commercial gas ignition systems involve electrical power, fuel gas, ignition voltage, and safety controls. Service should be performed by qualified commercial cooking-equipment personnel.

Disconnect electrical power and shut off the applicable gas supply before servicing the oven. Follow Blodgett service procedures.

Before removing the original 20348 control, document:

• Every wire and terminal position
• Module mounting orientation
• Ignition-lead connection
• Flame-sensing connection
• Gas-valve control wiring
• Grounding connections
• Related safety-control wiring

Compare the replacement control with the original component before installation.

After installation, qualified personnel should verify that the oven progresses through the proper ignition sequence, establishes stable burner operation, responds correctly to flame-safety conditions, and shuts down appropriately when required.

Why Correct Blodgett OEM Identification Matters

Commercial oven ignition modules can appear nearly identical while using different control logic, electrical characteristics, terminals, timing sequences, and flame-safety arrangements.

Using Blodgett OEM part number 20348 together with cross-reference BL20348 gives technicians and purchasing departments strong identification points when comparing the replacement with the original spark-box assembly.

Always verify the complete oven model, serial number, fuel configuration, original module, wiring, and ignition-system arrangement before ordering.

Frequently Asked Questions

What is Blodgett 20348?

Blodgett 20348 is an OEM spark box assembly / ignition control module used in compatible Blodgett commercial gas ovens.

Which Blodgett models use the 20348 Spark Box Assembly?

The Blodgett 20348 is listed for compatible DFG-50, DFG-100, and Zephaire G commercial oven applications. Always verify the complete model and serial number before ordering.

Is BL20348 a cross-reference for Blodgett 20348?

This listing identifies BL20348 as a cross-reference search number associated with Blodgett 20348.

Can Blodgett 20348 cause a no-heat condition?

A failed ignition control can prevent successful burner ignition, but gas supply, gas valves, ignition electrodes, flame sensing, wiring, and safety controls can produce the same symptom.

Why does my Blodgett burner ignite and then shut off?

Possible causes include flame-sensing problems, grounding issues, gas-pressure problems, burner conditions, ignition-control issues, or another safety-circuit fault.

Does Blodgett 20348 work with natural gas and propane ovens?

The provided fitment information associates this control with compatible natural-gas and propane DFG-50, DFG-100, and Zephaire G applications. Verify the exact oven configuration before ordering.

Can a bad gas valve look like a bad spark box?

Yes. A failed gas valve can prevent burner operation even when the ignition module is functioning. The complete ignition and gas-control system should be diagnosed.

Should the ignition electrode be inspected?

Yes. Electrode condition, position, ignition lead, grounding, and flame-sensing components should be inspected during ignition-system diagnosis.

Can I replace Blodgett 20348 with an ignition module that looks similar?

No. Verify OEM part number 20348, terminal configuration, ignition sequence, equipment model, serial number, fuel configuration, and original control before ordering.

How do I confirm Blodgett 20348 is the correct replacement?

Verify OEM part number 20348, the complete Blodgett oven model and serial number, original spark-box identification, fuel configuration, wiring, mounting, and ignition-system configuration before ordering.

Is professional installation recommended?

Yes. Commercial gas ignition controls should be diagnosed and installed by qualified foodservice-equipment technicians familiar with gas and electrical safety systems.

Why Buy From Parts Direct Online?

Parts Direct Online supplies OEM commercial cooking and commercial refrigeration replacement parts for service technicians, contractors, restaurants, bakeries, hotels, schools, hospitals, institutional kitchens, and commercial foodservice operations throughout the United States.

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