316536602 Frigidaire Oven Ignitor/Orifice Assembly is a combined ignition and gas metering component designed for use in Frigidaire gas ovens and ranges. As an assembly, it typically includes the hot-surface ignitor (or ignition element) and a precisely sized orifice or jet that meters the flow of gas to the bake or broil burner; together these elements control the initiation and initial quantity of gas delivered for combustion. The part is a discrete replacement unit intended to fit specific Frigidaire models and mounting configurations, and it is engineered to interface mechanically and electrically with the oven’s burner and valve hardware.
Inside the appliance the ignitor/orifice assembly performs two closely related roles: the ignitor provides the heat source required to ignite the gas, and the orifice sets the volumetric gas flow to the burner to achieve the intended flame characteristics. Operationally the component interacts with the gas valve (which supplies pressurized gas), the burner and venturi geometry (which determine air-fuel mixing), and the oven control/safety systems (thermostat, safety interlocks, and flame sensing where applicable). As ignition timing, gas pressure and orifice sizing all affect combustion stability and heat output, the assembly is critical to safe, repeatable ignition and correct oven performance.
In this article readers will find a technical overview of the 316536602 assembly: how it functions, how to verify model compatibility and correct orifice sizing, common failure symptoms (such as weak or no glow from the ignitor, delayed ignition, intermittent burners, or low flame), and step‑by‑step troubleshooting checks to isolate ignitor, orifice, valve and control faults.The guide also covers practical replacement considerations such as proper electrical connections, sealing and mounting details, leak‑check and test procedures after installation, and safety precautions to follow when working on gas appliances.
Table of Contents
- Function and Role of the ignitor/Orifice Assembly in Oven Ignition and Gas Regulation
- How the 316536602 Frigidaire Oven Ignitor/orifice Assembly Works Within the Burner,Gas Valve,and Control Circuit
- Common Failure Symptoms and Measurable Diagnostic Indicators (current draw,resistance,ignition delay,flame characteristics)
- Compatibility,Replacement Considerations,and Step-by-Step Troubleshooting/Installation Procedures
- Q&A
- Future Outlook
function and Role of the Ignitor/Orifice Assembly in Oven Ignition and Gas Regulation
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines a hot-surface ignitor element with a precisely machined gas orifice to initiate and meter burner gas flow. In operation the ignitor heats and glows, its electrical resistance falls and allows sufficient current draw through the oven gas valve circuit so the valve can open; simultaneously the orifice controls the volumetric flow to match the oven’s design BTU output.Replacement with the correct assembly restores both the electrical characteristics required to activate the safety gas valve and the correct bore size needed for safe, consistent combustion; substituting an orifice sized for the wrong gas type (natural gas versus LP) or a non‑matching ignitor resistance can cause poor flame characteristics or control failures.
- Slow glow or no glow,long ignition time,or failure to reach set temperature are typical signs of ignitor degradation or orifice blockage.
- Black soot, yellow or lifting flames, or gas odors indicate incorrect orifice sizing, insufficient primary air, or incomplete combustion.
- Electrical tests (continuity/resistance) and visual observation of glow timing are standard diagnostic steps before replacement.
| Item | description |
|---|---|
| function | Provides the thermal-electrical action to open the oven gas valve and a metered bore to set burner flow. |
| compatibility | Designed for specific Frigidaire models and gas types; match part number and gas type (NG/LP) when replacing. |
In practical service scenarios, technicians verify that the ignitor begins to glow within seconds of the control calling for heat and that the valve opens only after the ignitor reaches its operating condition; if the ignitor glows but no gas flows, the fault may be the valve or wiring rather than the assembly.When replacing the 316536602 unit, confirm model compatibility and inspect for clogged orifices, damaged insulation, or incorrect mounting that could alter flame geometry; correct installation restores predictable ignition timing, safe combustion, and consistent oven temperature control.
How the 316536602 Frigidaire Oven Ignitor/Orifice Assembly Works Within the Burner,Gas Valve,and Control Circuit
the 316536602 Frigidaire Oven Ignitor/Orifice Assembly integrates a hot-surface ignitor with the burner orifice to control gas flow and ignition timing at the burner port. In operation the oven control supplies line voltage to the hot-surface element; as the element heats it transitions to a low-resistance, high-current state and visibly glows. That heated element provides the thermal energy to ignite fuel leaving the orifice and also creates the electrical load the safety gas valve or control circuit uses to allow the valve to open. The orifice portion meters the fuel flow and establishes the correct jet size for the matched burner and fuel type, so the ignitor, orifice, gas valve, and controller operate as an interdependent subsystem rather than separate components acting independently.
For practical service and compatibility, the assembly must match the oven’s fuel type, mounting pattern, and electrical characteristics: an orifice sized for natural gas will produce different flame shape and heat output than one drilled for LP, and an ignitor with insufficient current draw will prevent the safety valve from energizing. Technicians should verify steady red-orange glow, measure open-circuit resistance and operating current with a clamp meter during ignition, and confirm the orifice port is clean and correctly sized for conversion work. Common field symptoms that point to the assembly include delayed ignition, repeated cycling of the valve, a weak or yellow flame, or no glow at all-each indicating either a thermal/electrical failure of the ignitor, an orifice restriction/mismatch, or a related control/valve fault.
- Diagnostic checks: visual glow, resistance measurement, operating amp draw, orifice inspection for clogging or wrong size.
- symptoms: no ignition, delayed light-off, loud ignition pop, uneven flames, or valve lockout during pre-purge.
- Compatibility notes: match orifice drilling to gas type and ensure correct mounting/connector to maintain safe valve/ignitor interaction.
| Item | Description |
|---|---|
| Ignitor type | hot-surface glowbar; provides heat and required electrical load to allow gas valve operation |
| Typical operating current | Typical range during ignition is approximately 2.5-4.0 A (verify against oven model specification) |
| Orifice | Drilled port sized for Natural Gas or LP; determines fuel flow and flame characteristics |
| Mounting/connector | Assembly must match oven’s mounting flange and electrical connector for proper fit and safe operation |
Common Failure Symptoms and Measurable Diagnostic Indicators (current draw, resistance, ignition delay, flame characteristics)
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly integrates a hot-surface ignitor and a matched gas orifice so that the ignitor reaches a specified temperature and current draw necessary to allow the gas valve to open and the burner to light reliably. Functionally, the ignitor must achieve a stable glowing temperature and maintain sufficient current (measured at line voltage) to satisfy the valve’s pull-in requirement; the orifice controls the flow rate and, together with manifold pressure, determines flame shape and combustion characteristics. When replacing this assembly, technicians should confirm the orifice sizing and ignitor electrical characteristics match the oven model and local gas type to avoid under- or over-firing, delayed ignition, or combustion irregularities that can present as yellow tipping, flame lift, or intermittent heating.
Diagnosis relies on measurable electrical and visual indicators. Measure resistance with power removed-an open circuit or resistance substantially higher than the manufacturer’s nominal value indicates a degraded filament. Live current measurement with a clamp meter during the warm-up period shows whether the ignitor is drawing sufficient amperage; a current that remains below the valve’s specified actuation threshold or that ramps unusually slowly signals a weak ignitor. Time the ignition delay (seconds from the ignitor glow to a steady flame); delays beyond a few seconds frequently enough point to reduced ignitor output or a partially blocked orifice. Observe flame characteristics: a compact blue cone indicates correct operation, while a soft, lifting, or yellow-tipped flame suggests incorrect orifice sizing, pressure mismatch, partial blockage, or incomplete combustion. Practical procedure examples include a cold-resistance check with the oven isolated, a live current test during the lighting cycle, and a visual inspection of the orifice for debris or corrosion.
- low live current draw during warm-up
- Open or abnormally high cold resistance
- Prolonged ignition delay (several seconds beyond normal)
- Yellow, lifting, or unstable flame patterns
- Intermittent lighting or repeated ignition cycles
| Item | Description |
|---|---|
| current draw | Measured live with a clamp meter; must reach the valve’s actuation amperage. Persistent low amperage indicates a weak ignitor even if it glows. |
| Resistance | Measured cold with power removed; an open circuit or value well above spec implies a failing filament or internal break. |
| Ignition delay | time between ignition command and steady flame. Excessive delay suggests reduced ignitor output or orifice restriction. |
| Flame characteristics | blue, stable cone = proper combustion; yellow tips, lifting, or fluttering = orifice, pressure, or combustion issues. |
Compatibility, Replacement Considerations, and Step-by-Step Troubleshooting/Installation Procedures
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines a hot-surface ignitor element and a matched gas orifice to ignite the oven burner reliably. the ignitor behaves as a resistive heating element: when the control calls for heat it draws line current and heats to a shining orange glow; once the ignitor reaches sufficient current draw it permits the gas valve to open. The orifice governs the gas flow rate and jet pattern for the burner; therefore compatibility is determined both by the electrical characteristics and by the orifice size for the oven’s gas type (natural or LP). When evaluating replacements, verify the electrical connector type, mounting footprint, and the orifice designation so the ignitor current draw and jet size match the appliance specifications rather than relying solely on visual similarity of the assembly.
Troubleshooting and replacement follow deterministic electrical and gas-flow checks that isolate whether the cause is the ignitor, the orifice, or downstream valve/harness. Typical diagnostic actions include visual confirmation of glow intensity and timing, static resistance and in-circuit current measurements on the ignitor, and inspection/cleaning of the orifice for blockage; if the ignitor glows dimly or draws noticeably less current than the expected range the assembly will often fail to open the gas valve even though it appears to glow. For a safe replacement procedure: shut off electrical power and the gas supply, remove the oven floor/burner cover to access the burner box, disconnect the ignitor leads and mounting screws, compare resistance and orifice size against the OEM specification, install the replacement assembly with the correct orifice for the gas type, tighten connections to original torque, restore gas and power, and perform a leak test and several ignite cycles to confirm correct operation.
- Swift diagnostic checklist: visual glow (bright steady orange), measure ignitor resistance/amp draw, inspect orifice for clogging, verify valve operation under test conditions.
| Item | Description |
|---|---|
| Typical symptom | Long ignition time or no flame despite visible glow (weak ignitor current or wrong orifice) |
| Key measurement | ignitor resistance and live current draw during call for heat; compare to OEM service data |
| gas compatibility | Use correct orifice size for Natural vs LP; mismatched orifices change flame characteristics and safety margins |
Q&A
What is the Frigidaire part 316536602 and what does the ignitor/orifice assembly do?
the 316536602 is a replacement ignitor and burner orifice assembly used on many Frigidaire gas ovens and ranges. The ignitor (hot surface type) heats and glows when the oven calls for heat; when it reaches operating temperature it allows the safety gas valve to open and gas flows through the orifice to the burner where it is ignited. The assembly combines the ignition element and the properly sized orifice for controlled gas flow.
How do I know if I need to replace the ignitor/orifice assembly?
Common symptoms include the oven not lighting,very long glow time before ignition,oven failing to reach set temperature,or the ignitor not glowing at all when the oven is set to heat. If the ignitor glows weakly or intermittently, or continuity and operational tests (see service manual) show failure, replacement of the assembly is appropriate. Also replace if the orifice is damaged or corroded.
Can I use this part for both natural gas and LP (propane) ovens?
No – orifices are sized for the specific gas type. Some replacement kits include the LP orifice or require ordering a separate LP orifice. Before replacing, confirm your appliance’s gas type and order the correct orifice or conversion kit if switching fuels. Never run the oven on the wrong orifice size.
Is installation something a homeowner can do, and what safety steps are required?
A competent DIYer can install it, but you must take safety precautions: shut off gas supply and disconnect electrical power to the appliance, work in a well-ventilated area, and avoid damaging the fragile ceramic ignitor. After installation,check all gas connections for leaks with a soap solution or approved leak detector and restore power only after confirming no leaks. If you are not agreeable working with gas or electrical components, hire a qualified appliance technician.
how should I test the ignitor to confirm it’s bad before replacing it?
Start with a visual check: when the oven calls for heat, the ignitor should glow bright orange. If it does not glow, or glows weakly and never reaches full brightness, it may be failing. You can check for continuity with a multimeter (with power off) to confirm the element is not an open circuit. For a definitive operational test, a qualified technician can measure the current draw while the ignitor is on and compare it to the manufacturer’s specification, and verify proper voltage across the control circuit as described in the service manual.
Do I need any special tools or gaskets to install the 316536602 assembly?
you generally need basic hand tools (screwdrivers, nut drivers) and possibly pliers. Use the replacement gaskets or seals specified by the manufacturer if the old gasket is damaged; some kits include the mounting gasket. Avoid overtightening fittings to prevent damage. If the gas line connection must be disturbed, use appropriate thread sealant approved for gas connections and test for leaks afterwards.
Will replacing the ignitor always fix an oven that won’t heat?
Not always. A failed ignitor is a common cause, but other issues can cause no-heat conditions: faulty gas valve, thermostat/temperature sensor, control board, wiring harness, safety interlocks, or clogged burners/orifices. If replacing the ignitor doesn’t solve the problem,further diagnosis of the gas valve,control circuitry,and sensors is required.
How do I confirm this part is compatible with my Frigidaire range?
Check your appliance’s model number (usually on a tag inside the oven door frame or on the back) and compare parts diagrams or the manufacturer’s parts list. Many parts suppliers and Frigidaire’s parts lookup tools will tell you whether 316536602 fits your model.If uncertain, provide the appliance model number to the parts supplier or a technician to confirm compatibility before ordering.
Future Outlook
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly is a critical component in gas oven systems, combining the ignition element and orifice required for reliable flame establishment and stable heat output. When functioning correctly, this assembly ensures consistent bake and broil performance, efficient fuel use, and safer operation by promoting quick, complete ignition of the gas supply.
Because symptoms of a failing ignitor or orifice assembly-such as slow or no ignition, uneven cooking, or extended preheat times-can resemble other gas-oven issues, accurate diagnosis is essential. Verifying model compatibility, performing appropriate electrical and gas checks, and inspecting related components (valves, wiring, and controls) helps avoid unnecessary parts replacement and ensures the root cause is addressed.
When replacement is required, choosing the correct OEM part and following recommended installation procedures preserves oven performance and safety. For most users the safest and most reliable outcome comes from qualified service personnel who can confirm diagnosis, install the assembly to manufacturer specifications, and test the appliance post-repair. Timely and proper attention to the 316536602 assembly maintains cooking performance, operational efficiency, and household safety.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
Revolff Home Services
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For local appliance service information see
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Replacement parts for many appliance models can also be found at
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