316536623 Frigidaire ignitor/Orifice Assembly is a service-replaceable module that combines an ignition element and a gas metering orifice used in Frigidaire gas cooking appliances. As a discrete mechanical/electrical component, the assembly typically includes an ignitor (either a hot-surface/glow element or an electrode for spark ignition) and a precisely sized orifice or jet that controls the fuel flow to a burner; it is mounted at the burner or on the manifold and is treated as a field-replaceable part in service manuals and parts catalogs.
Within the appliance the ignitor/orifice assembly performs two closely linked functions: it provides the energy source to ignite the air-fuel mixture and it meters the amount of gas delivered to the burner. The assembly interfaces directly with the oven or range control and ignition module (electrical supply and switching), the gas valve and manifold (fuel supply and pressure), the burner head (air-fuel mixing and flame stability), and any flame-sensing or safety interlock devices. Proper matching of orifice size to fuel type and manifold pressure, secure mounting and intact electrical connections are all critical to reliable combustion, stable flame characteristics and safe operation.
This article explains the part’s functional design and operational role, describes how to confirm compatibility with specific Frigidaire models and fuel types, and lists common failure symptoms you may encounter (such as no ignition, delayed ignition, weak or unstable flame, continuous sparking or loss of temperature control). It also outlines diagnostic checks a technician can use to isolate ignitor, wiring or orifice-related faults, and summarizes replacement considerations including correct orifice sizing, mounting and sealing, and post-service verification steps.The content is intended to provide technical context and troubleshooting guidance for technicians, engineers, and informed appliance owners, while deferring to local codes and safety procedures for any on-site work.
Table of Contents
- functional Role and Electrical and Thermal Specifications of the Ignitor/Orifice Assembly
- How the 316536623 Frigidaire Ignitor/Orifice Assembly Works Inside the Appliance
- Common Failure Symptoms and Diagnostic Indicators for Ignitor and Orifice Malfunctions
- Compatibility,Replacement Considerations,and Detailed Installation Procedures
- Q&A
- To Wrap It Up
Functional Role and Electrical and Thermal Specifications of the Ignitor/Orifice Assembly
The 316536623 Frigidaire Ignitor/Orifice Assembly combines the ignition element and the precision gas metering orifice used on compatible Frigidaire gas cooktops and ranges. The ignitor provides the initial energy to start combustion (either by producing a spark or by heating a hot-surface element, depending on the model) while the orifice controls the volumetric flow and jet shape of the fuel entering the burner. Correct operation requires matching the assembly to the burner geometry, the valve outlet pressure and the appliance’s gas type (natural gas or LP); an orifice sized for LP will produce a markedly different flame when installed on a natural-gas system and vice versa. Mechanically the assembly mounts at the burner head and connects directly to the valve and to the appliance ignition/control module, so fitment and connector type determine compatibility as much as part number equivalence.
Electrically and thermally the component must tolerate ignition transients and repeated thermal cycling: spark-type assemblies rely on high-voltage pulses from the ignition module but draw negligible steady-state current, whereas hot-surface ignitors operate on line voltage and present a measurable resistance that produces steady heating. Typical diagnostic work includes measuring continuity and cold resistance of a hot-surface element, verifying the presence of high-voltage pulses for spark systems, and confirming that the installed orifice diameter and resulting flame pattern match the appliance’s specifications. Common service tasks are replacing a fouled or cracked ignitor, swapping orifice sizes for gas conversions, and confirming flame stability after installation by observing color, split, and lift under nominal valve pressure; always verify that electrical connectors, insulating ceramics, and mounting seals are intact to prevent heat-related degradation or electrical leakage.
- Speedy checks: continuity/resistance on hot-surface units; ignition pulse presence on spark systems; correct orifice marking for gas type.
- Symptoms indicating replacement: intermittent ignition, long ignition delay, weak or yellow flame, or visible damage to the ignitor/insulator.
- Post-repair validation: stable blue flame across all burner ports and no arcing to chassis.
| Item | Description |
|---|---|
| Operating mode | spark-type (high-voltage pulses) or hot-surface (line-voltage heating element); confirm type for the specific model. |
| Typical electrical characteristics | Spark systems: high-voltage pulses with negligible steady current. Hot-surface units: line voltage (~110-120 V) with steady-state current in the ampere range; consult model data for exact values. |
| Orifice function/size | Precision-machined orifice that meters gas flow; must match appliance gas type and burner design to achieve correct BTU delivery and flame shape. |
| Thermal tolerance | Designed for repeated thermal cycling at burner temperatures; inspect ceramics and seals for heat damage during service. |
How the 316536623 Frigidaire Ignitor/Orifice Assembly Works Inside the Appliance
The 316536623 Frigidaire Ignitor/Orifice Assembly combines the ignition element and the calibrated gas jet into a single component that mounts at the burner throat.the ignitor provides the energy (hot-surface or spark type depending on the appliance model) to initiate combustion, while the orifice meters the gas flow to produce the correct flame size and shape for efficient, stable burning. physical dimensions, orifice bore and connector pinout determine which Frigidaire ranges and ovens the assembly will mate with; installers must match the assembly to the appliance model and the intended fuel type (natural gas or LP) to maintain correct combustion characteristics and regulatory compliance.
Operationally,the control system energizes the ignitor during a heat call; when the ignitor reaches required output the gas valve is signaled and fuel is released through the orifice where it mixes with air and ignites at the burner. Fault behavior typically stems from either insufficient ignition energy (open or high-resistance ignitor circuit) or incorrect metering (wrong orifice size, partial blockage, or improper pressure), which can cause delayed ignition, weak or yellow flames, or soot. Technicians should verify electrical continuity and current draw, confirm correct orifice for the fuel and conversion status, ensure secure mounting and gaskets to prevent leaks, and use the OEM part number or an approved equivalent to preserve safety interlocks and flame stability.
- Primary functions: ignition energy source and calibrated gas metering.
- Common symptoms of failure: no ignition,delayed ignition,weak/yellow flames,soot accumulation.
- Compatibility considerations: model-specific mounting, connector pinout, and fuel-type orifice sizing (NG vs LP).
| Item | Description |
|---|---|
| Ignitor type | Hot-surface or spark configuration depending on appliance; consult service sheet. |
| Gas metering | Orifice bore governs flow rate; must match fuel type and regulator setting. |
| Electrical interface | Connector and wiring must match the range control harness; check continuity and current draw. |
| Mounting | Locates at burner throat with gasket/seal to prevent leaks; orientation affects flame pattern. |
Common Failure Symptoms and Diagnostic Indicators for Ignitor and Orifice Malfunctions
The 316536623 Frigidaire Ignitor/Orifice Assembly integrates the glow ignitor and a fixed gas orifice into a single serviceable component that controls ignition and metered gas flow for compatible Frigidaire ranges and ovens. In normal operation the ignitor must reach a consistent radiant orange glow that draws sufficient current to allow the safety gas valve to open; the orifice then limits upstream pressure to produce the correct flame geometry. Technicians should confirm appliance model compatibility and reference the manufacturer’s service sheet for nominal ignitor current/voltage and orifice sizing before replacing the assembly or changing gas pressures.
- Dim or slow-glowing ignitor with delayed or no ignition
- Yellow, lifting, or sooty flame indicating poor combustion
- Intermittent flame or repeated sparking after gas flows
- Reduced heat output across affected burner/oven compared with expected behavior
| item | Description |
|---|---|
| Dim ignitor glow | Ignitor is drawing below specified current; may fail to open the valve even if it glows visibly. |
| Delayed ignition | Could be a weak ignitor or partial orifice obstruction causing insufficient gas flow at valve opening. |
| Yellow/orange flame | Indicates improper air-to-gas ratio or orifice blockage leading to incomplete combustion and soot. |
| Intermittent flame | Loose electrical connections, failing ignition module, or a shifting orifice alignment can cause unstable operation. |
Diagnosis combines visual inspection with electrical and flow checks: verify the ignitor’s warm-up time and current draw against the service specification using a clamp ammeter or multimeter, inspect the orifice for debris or corrosion and check flame color and height under steady-state conditions. Practical examples include a unit that glows but never lights-this commonly points to insufficient current at the valve circuit rather than a visibly broken ignitor-and a stove that produces a persistent yellow flame, which often responds to cleaning or replacing the orifice and confirming correct manifold pressure. Always isolate electrical and gas supplies before disassembly and confirm proper operation after any replacement using the manufacturer’s test procedures.
Compatibility, Replacement Considerations, and Detailed Installation procedures
The 316536623 Frigidaire Ignitor/Orifice Assembly integrates the ignition element and a matched gas orifice so that the ignition energy and fuel metering are controlled as a single unit. in service, the ignitor provides the electrical energy required to ignite the burner while the orifice precisely meters gas flow to achieve the designed flame characteristics; mismatching either component alters flame size, combustion stability, and heat output. compatibility is steadfast by more than the part number alone-confirm the assembly’s mounting flange geometry, electrical connector type, and stamped orifice size against the appliance’s original component and the appliance’s manifold pressure specification before installation. Substituting an assembly with a different orifice diameter or connector can result in weak ignition, sooting, or regulator stress even if the physical fit appears correct.
- Shut off power and gas to the appliance and depressurize the gas line before disassembly.
- Remove burner head and access panel to expose the assembly; note orientation and routing of the ignitor lead.
- Disconnect the ignitor electrical connector and remove mounting fasteners; preserve any gaskets or insulating hardware for reuse or replacement.
- Install the new assembly, aligning the orifice with the burner inlet and seating any gasket; tighten fasteners to secure, avoiding over-torquing the flange.
- Reconnect electrical wiring, restore gas and power, then perform a leak check on fittings and observe flame pattern and ignition timing-flame should be stable, blue, and properly centered on the burner port.
During commissioning, verify ignition by observing the spark or hot-surface behavior and confirm that the flame intensity matches expected operation for that model; persistent delayed ignition, clicking without light, or yellow-tipped flames indicate incorrect orifice size, restricted gas flow, or a faulty ignitor. If diagnostics point to low gas delivery, measure manifold pressure and compare the orifice marking to the appliance specification-replacing the assembly with one that matches those specifications is required rather than relying on visual fit alone. For safe,reliable results,follow appliance manufacturer torque and clearance specifications,retain original mounting hardware if serviceable,and perform a soap-solution leak test on all gas joints before returning the appliance to service.
Q&A
What is the 316536623 Frigidaire Ignitor/Orifice Assembly?
The 316536623 is an OEM replacement assembly that combines the oven ignitor (hot surface ignitor) and the gas orifice used on certain Frigidaire gas ranges/ovens.The ignitor provides the heat/glow to ignite the gas,and the orifice meters the gas flow.It is sold as a matched assembly so the ignition and gas metering components are correct for the intended appliance design.
How do I know if my oven needs this ignitor/orifice assembly?
Common symptoms of a failing assembly include: the oven won’t light, long ignition delay before the burner lights, the ignitor does not glow, or the ignitor glows but the burner never opens (or lights very weakly). If you hear the gas valve clicking but ther’s no ignition, or if the oven cycles erratically, the ignitor/orifice assembly is a likely suspect. Always confirm with the tests below before replacing.
How can I test the ignitor to see if it is bad?
Safe, practical tests include: 1) Visual: when the oven calls for heat the ignitor should glow bright orange within a few seconds. A dim or non-glowing element indicates weakness or failure.2) Electrical: with the range powered and the oven set to light (or by activating bake/broil),measure for line voltage at the ignitor connector (typically 110-120 VAC on many models). If voltage is present but the ignitor doesn’t glow, the ignitor is bad. 3) Continuity: with power off and the ignitor disconnected, measure resistance with a multimeter-an open circuit indicates failure. Refer to the service manual for exact expected resistance values if needed.
Can I replace just the ignitor or only the orifice, or must I replace the entire 316536623 assembly?
OEM assemblies are matched for correct fit and gas metering. If the ignitor alone is available separately and is compatible, replacing the ignitor can be acceptable. However, because the orifice determines gas flow and may differ for natural gas vs LP or be specific to the model, most technicians recommend replacing the complete ignitor/orifice assembly to ensure proper combustion and safety-especially if you are converting fuel types or the orifice is damaged.
What are the basic steps and safety precautions for replacing this part?
Basic steps: 1) Disconnect main power to the appliance and shut off the gas supply.2) Access the burner compartment or oven cavity as outlined in your model’s service manual. 3) Carefully disconnect ignitor electrical connector and remove the mounting screws; handle the ignitor by its ceramic body, not the wires. 4) Remove and replace the orifice/union hardware if included, observing thread sealant and torque practices required for gas fittings. 5) Reassemble, restore power and gas, and perform a gas leak test at the fitting (soap solution or a gas leak detector).Safety notes: if you are not experienced with gas appliances, or local codes require it, hire a qualified technician. Never test for leaks with an open flame, and always follow local codes when working on gas lines.
Do I need a special orifice size for LP (propane) conversion?
Yes. Orifice sizes are specific to the fuel type and to the cooktop/oven design. LP (propane) requires a smaller orifice than natural gas. If you are converting the appliance to LP, you must install the correct LP orifice and any manufacturer-required regulator or conversion kit. Using the wrong orifice can cause improper combustion,soot,carbon monoxide risk,or unsafe operation.
How do I confirm compatibility and where can I get a replacement 316536623 part?
Confirm compatibility by checking your appliance model number (usually on a tag behind the oven door, on the oven frame, or on the back of the range) and cross-referencing with the Frigidaire parts lookup or a trusted parts distributor. OEM parts like 316536623 are available through authorized Frigidaire parts dealers and many online appliance parts retailers. If unsure, provide the appliance model number to the parts supplier or technician to ensure you receive the exact assembly required.
To Wrap It Up
The 316536623 Frigidaire Ignitor/Orifice Assembly serves as a critical component in gas cooking appliances by providing the ignition spark and regulating the gas flow to the burner. Proper functioning of this assembly ensures consistent ignition, steady flame characteristics, and the correct air‑to‑fuel ratio needed for efficient cooking performance. As an integrated part of the appliance’s combustion system, it directly affects both operational reliability and user safety.
Accurate diagnosis and timely replacement of the ignitor/orifice assembly are essential when symptoms such as delayed ignition, weak or uneven flames, repeated clicking, or gas odor occur. Identifying whether the assembly, wiring, control module, or another component is at fault prevents unneeded repairs and restores safe, efficient operation. Replacing a worn or damaged assembly with the correct part helps maintain manufacturer specifications for performance and reduces the risk of further appliance damage or unsafe conditions.
When replacement is necessary, follow manufacturer guidance and safety procedures; engage a qualified technician if you are not experienced with gas appliance service. Proper installation, testing, and calibration ensure the assembly performs as intended and prolongs appliance life. attention to correct diagnosis and replacement of the 316536623 Frigidaire Ignitor/Orifice Assembly supports reliable performance, safety, and optimal cooking results.
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