316536602 Frigidaire Oven Ignitor/Orifice Assembly is a combined ignition and gas metering component used on Frigidaire gas ovens; it integrates a hot-surface ignitor element with the orifice mounting that delivers and shapes the gas flow to the bake burner. The assembly is a field-replaceable appliance component designed to provide a reliable ignition source while positioning the correct orifice size for the oven’s rated gas input,and it typically mounts to the burner manifold or floor of the oven cavity.
Functionally, the ignitor portion provides the thermal or electrical energy required to ignite the gas at the burner while the orifice portion determines the volumetric gas flow to the burner port. The assembly interfaces directly with the gas supply and manifold, the gas valve (which will only open when the ignitor reaches the required operating condition), and the oven control and safety systems that monitor flame presence and combustion behaviour. Proper operation thus depends on correct electrical feed to the ignitor, correct orifice sizing for the fuel type (natural gas vs. LP), secure mechanical mounting, and leak-free gas connections.
In the article you will find a technical overview of the part’s function and its place in the gas combustion subsystem, guidance on compatibility with appliance models and gas types, common failure symptoms to recognize (such as no ignition, delayed ignition, weak or unstable flame, or persistent oven heating issues), systematic troubleshooting steps (visual inspection, electrical checks, current/continuity testing, and orifice verification), and practical replacement considerations such as safety precautions, correct orifice selection, mechanical fitment, wiring and connector checks, and post-replacement leak and operational testing.The information is presented to assist technicians, engineers, and informed appliance owners in diagnosing and servicing the assembly with an emphasis on safe, code-compliant practices.
Table of contents
- Function and Gas‑Flow Role of the Oven Ignitor/Orifice Assembly
- How the 316536602 Frigidaire Oven Ignitor/orifice Assembly Operates within the Burner and Gas‑Valve Circuit
- Common Failure Symptoms and Measurable Diagnostic Criteria for Ignitor/Orifice Malfunction
- Compatibility, Fitment, and Replacement Procedures for the 316536602 frigidaire Oven Ignitor/Orifice Assembly
- Q&A
- Concluding Remarks
Function and Gas‑Flow Role of the Oven Ignitor/Orifice Assembly
316536602 Frigidaire Oven Ignitor/Orifice Assembly integrates a hot-surface ignitor with a matched gas orifice to control the ignition sequence and gas metering for the oven burner. The ignitor is a resistive heater that must reach a specific temperature and electrical conductivity so the oven control and the gas valve coil detect sufficient current draw to energize the valve; only after the ignitor’s draw reaches that threshold will the safety gas valve open and supply gas to the burner ports. The orifice is a precision aperture sized to the oven’s design heat output; it converts manifold pressure into a controlled volumetric flow so the burner ports receive the intended mixture and flame height for stable combustion and repeatable bake performance.
Operationally and for service diagnostics, a declining ignitor output (glows but fails to reach operating conductivity) typically yields long preheat times or no ignition, while an incorrect orifice alters flame appearance and delivered BTUs, potentially causing incomplete combustion or uneven temperature. Practical checks include observing ignitor glow time relative to expected preheat, visual flame inspection for proper shape and color, and confirming the replacement assembly matches the appliance’s gas type and mounting geometry. common useful indicators and steps for troubleshooting and verification are listed below.
- Symptom: Ignitor glows but burner never lights – likely insufficient current draw from the ignitor.
- Symptom: Long preheat times or slow temperature rise – weakened ignitor or partially obstructed orifice.
- Verification: Inspect flame color/shape and confirm orifice size and orientation match OEM specifications.
- Replacement guidance: Use the matched assembly to preserve ignition timing and gas flow characteristics; if substituting parts, verify compatibility with appliance model and gas type.
| item | Description |
|---|---|
| Ignitor | Hot-surface element that heats, changes conductivity, and provides the control-current signature to permit gas-valve operation. |
| Orifice | Calibrated aperture that meters gas flow to the burner ports to achieve the oven’s rated heat output and flame characteristics. |
| Assembly compatibility | Matched components ensure correct timing and flow; replacements should match gas type (natural/LP),orifice sizing,and mounting orientation. |
How the 316536602 frigidaire Oven Ignitor/Orifice Assembly Operates Within the Burner and Gas‑Valve Circuit
The 316536602 frigidaire Oven Ignitor/Orifice Assembly combines a hot‑surface ignitor element and a precision gas orifice into a single service component that interfaces directly with the oven burner and the gas‑valve control circuit. In normal operation the oven control sends line voltage to the ignitor, the ignitor heats and draws current, and the control monitors that current as a safety interlock; once the ignitor reaches the specified forward current the gas valve is energized and gas is released through the orifice into the burner ports where the glowing ignitor provides ignition. The orifice’s bore size and sealing geometry set the flow rate and pressure drop, so correct orifice selection and proper installation are necessary to preserve designed BTU output and flame shape for the associated frigidaire model.
- Primary functions: hot‑surface ignition and gas metering.
- Common failure symptoms: no glow, slow or dim ignition, delayed/partial flame, yellow or sooty flame, or intermittent ignition.
- Diagnostic checks: visual glow check, resistance/continuity, amp draw under applied voltage, and inspection of orifice for clogging or incorrect sizing.
- Compatibility notes: match part number, mounting flange, connector type and gas type (natural vs. LP) to the oven’s service manual.
| Item | Description |
|---|---|
| Ignition type | Hot‑surface ignitor integrated with a fixed orifice |
| Interface | Mounts between burner and gas valve; electrical connector to control board |
| Typical service checks | Resistance/continuity, live amp draw, flame observation, orifice inspection |
| Replacement guidance | Use OEM part or exact cross‑reference; verify gas type and orifice size |
From a practical troubleshooting perspective, technicians should verify both the electrical and gas‑flow sides of the assembly: a visibly glowing ignitor that does not allow valve opening indicates control or valve issues, while a weak or non‑glowing element indicates open or degraded ignitor performance. Replacing the 316536602 unit as a whole is often more effective than substituting only the ignitor or the orifice because the assembly tolerances and seals affect ignition timing and leak prevention; if flame characteristics change after service, recheck orifice size, regulator pressure, and the burner air shutter to restore correct combustion. When servicing, use manufacturer torque and sealing procedures and confirm operation with a full ignition cycle and flame‑quality inspection.
common Failure Symptoms and Measurable Diagnostic Criteria for Ignitor/Orifice Malfunction
The 316536602 Frigidaire Oven Ignitor/Orifice assembly combines the hot-surface ignitor that heats to open the gas valve and the precision orifice that meters fuel into the burner. Typical failure modes manifest as delayed ignition, weak or absent flame, or an oven that cannot reach or hold set temperature.Faults can originate in the ignitor element (loss of heating capability or open circuit), a partially clogged orifice that restricts flow, or an electrical mismatch where the ignitor does not draw sufficient current to pull the gas valve. This assembly interfaces directly with the oven control and gas valve,so verifying both the electrical characteristics of the ignitor and the physical condition of the orifice is necessary to determine compatibility and to avoid replacing ancillary components unnecessarily.
Technically useful diagnostic checks are continuity/resistance of the ignitor, measured operating current under call for heat, observed glow-to-flame delay, and flame quality at the burner. Practical examples: if the control supplies valve voltage but the ignitor glows for an extended period (significantly longer than the oven’s normal ignition cycle) and the burner never lights, the ignitor is likely weak and not reaching required current; if the ignitor heats normally but the flame is sputtering or yellow, inspect for a restricted orifice or contamination. Use the listed symptoms and measurable criteria to isolate the subcomponent fault before replacing the assembly or the control board.
- No glow / open circuit on continuity tester – ignitor failure.
- Significantly reduced operating current (see table) under call for heat – weak ignitor.
- Glow-to-flame delay longer than normal cycle – degraded ignitor heating or partial orifice restriction.
- Blue, steady flame expected; yellow tipping or uneven flame – possible orifice blockage or air/gas mixture issue.
| Item | Description |
|---|---|
| Ignitor continuity | Should show continuity (typically tens to a few hundred ohms); open = replace ignitor. |
| Operating current | When energized, a functioning hot-surface ignitor typically draws on the order of a few amps at line voltage; values substantially below manufacturer norms indicate degradation. |
| Glow-to-flame time | Normal ignition occurs within the oven’s designed cycle (commonly under 30-40 seconds); longer delays indicate weak heating or flow restriction. |
| Valve voltage | Control must supply rated valve voltage during call for heat; presence of voltage with no flame points to ignitor or orifice issues, not the control output. |
| Flame appearance | Full blue, steady flame = correct orifice and mixture; yellow, lifting, or irregular flame = orifice or combustion air problem. |
Compatibility, Fitment, and Replacement Procedures for the 316536602 Frigidaire Oven Ignitor/Orifice Assembly
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly is an integrated service component that pairs a high-temperature ignitor element with a matched gas orifice to establish and sustain a stable burner flame in compatible Frigidaire gas ovens. The ignitor provides the necessary heat or spark to initiate combustion while the orifice meters gas flow to produce the designed flame size at the oven’s manifold pressure; mismatches in orifice size, mounting orientation, or electrical characteristics can produce weak ignition, delayed light, or improper combustion. Technicians should confirm electrical resistance and connector type, and verify that the orifice matches the appliance’s pressure rating before installation to ensure the assembled component will behave as intended under load and during normal ignition cycles.
Fitment and replacement require both mechanical alignment and system checks: confirm the assembly’s mounting hole pattern, pilot tube alignment (if present), and sealing surfaces to prevent gas leaks, and perform a bench electrical check against manufacturer-specified resistance or current draw. Replacement procedure examples include shutting off gas and power,documenting lead and bracket orientation,removing the old assembly with minimal disturbance to adjacent gaskets and valves,installing the new unit with proper torque on fasteners,performing a gas-leak test,and observing the ignition sequence and flame pattern during initial startup.For field diagnostics, note common symptoms that indicate this assembly as the likely fault-such as a glowing ignitor that does not open the gas valve, a weak or unstable flame after lighting, or repeated relighting cycles-and consult the oven’s service manual for the exact orifice designation and resistance specifications before final verification.
- Compatibility checklist: confirm part number, mounting pattern, connector type, and required manifold pressure/orifice size.
- Electrical test: measure cold resistance and compare with service manual values before installation.
- Replacement steps: isolate gas and power, document wiring/bracket orientation, swap assemblies, leak-test, and observe ignition/flame.
- Post-install checks: flame shape,steady burn,and absence of gas odor or leaks.
| Item | Description |
|---|---|
| Part | 316536602 Frigidaire Oven Ignitor/Orifice Assembly – integrated ignitor element with matched gas orifice |
| Function | Initiates combustion and meters gas flow to produce the correct burner flame for specified manifold pressure |
| Electrical check | Measure cold resistance or current draw and compare to the appliance service specification |
| Mounting | Bracket and gasket interface must align with valve port and oven cavity; torque fasteners to OEM values |
Q&A
What is the 316536602 Frigidaire Oven Ignitor/Orifice Assembly and what does it do?
The 316536602 is an OEM replacement assembly that includes the hot-surface ignitor (glow bar) and the burner orifice/mounting hardware for certain Frigidaire gas ovens. The ignitor heats red‑hot to ignite the gas, and the orifice controls the amount of gas delivered to the burner.Together they allow the oven to light and maintain a stable flame.
How do I know if the ignitor/orifice assembly is the cause when my oven won’t light?
common signs of a failing ignitor/orifice assembly include the oven clicking but no flame, long or indefinite preheat times, the surface ignitor glowing but gas valve not opening, or a flame that repeatedly goes out. A distinct gas smell with no ignition can also indicate a problem. You should also check for error codes on the control board and rule out issues with the thermostat, control board, or gas supply before replacing parts.
Can I test the ignitor before replacing it and how?
Yes. With the oven powered off, you can remove the ignitor and check for continuity with a multimeter-an open circuit means the ignitor is bad.For a more useful in‑system test,measure the current draw when the oven is calling for heat (technician task): a healthy hot surface ignitor typically pulls enough current to open the gas valve (commonly on the order of a couple of amps). if the ignitor draws significantly less current than specified or fails to heat adequately, it should be replaced. refer to your service manual for exact current/resistance targets because they vary by model.
Is the orifice something I can clean, or should I replace the entire assembly?
If the orifice is partially clogged it can sometimes be cleared, but cleaning gas orifices is delicate and not always accomplished. Since the 316536602 is sold as an ignitor/orifice assembly for some models, technicians often replace the whole assembly to ensure correct gas flow and reliable ignition. Replacing the assembly also avoids risks from improper re‑reaming or contamination.
Are there safety steps I must follow when replacing this part?
Yes. Always turn off electrical power to the range and shut off the gas supply before starting work. Ventilate the area, avoid open flames, and use proper tools. After installation, restore gas and power, then perform a leak test at any disturbed gas fittings (soapy water or a gas leak detector) and verify proper ignition and flame characteristics.If you are not pleasant working on gas appliances, hire a licensed technician.
Will replacing the ignitor/orifice assembly fix electronic ignition or control problems?
Not always. If the ignitor and orifice are functioning but the control board, safety valve, or wiring is defective, replacing the assembly will not solve the issue. Verify that the control is sending the correct voltage to the ignitor and that the gas valve is operational before assuming ignition hardware is the only problem.
How long does replacement usually take and can a homeowner do it?
Replacement time is typically 30-60 minutes for someone with basic appliance repair skills and the right tools. Tasks include disconnecting power and gas,removing the oven burner or access panel,disconnecting and swapping the ignitor/orifice assembly,reconnecting wiring and gas fittings,and testing. Homeowners can do it if they are comfortable with gas and electrical safety; otherwise hire a qualified technician.
How do I ensure I order the correct part for my Frigidaire oven?
Confirm your oven model number (usually on a tag inside the oven door frame or on the back) and check parts diagrams or the Frigidaire parts website. The 316536602 fits specific models; don’t rely on visual similarity alone. If in doubt, contact frigidaire customer support or a parts distributor with your model number to verify compatibility.
Concluding Remarks
the 316536602 Frigidaire oven ignitor/orifice assembly plays a central role in ensuring reliable and safe oven operation by initiating and regulating the gas flow required for consistent burner ignition. As a combined component that influences ignition timing,flame establishment and overall heating performance,it directly affects cooking consistency,energy efficiency and appliance safety. Proper function of this assembly is therefore essential to maintain expected oven performance and to minimize risks associated with incomplete ignition or gas buildup.
As symptoms of a failing ignitor/orifice assembly can resemble other oven issues, accurate diagnosis is critically important before replacement to confirm the root cause and avoid unneeded parts changes. When replacement is required, choosing the correct 316536602 assembly and following appropriate installation and safety procedures will restore reliable operation and help preserve appliance longevity. Whether handled by a qualified technician or a knowledgeable DIYer,diagnosis and timely,correct replacement of this assembly are key to maintaining safe,efficient oven performance.
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