316536602 Frigidaire Oven Ignitor/Orifice Assembly is a factory service component used in Frigidaire gas ovens and ranges; it is a combined ignitor and gas metering element that mounts at the oven burner and provides the initial ignition source together with a fixed orifice that helps regulate gas flow to the burner.The assembly typically includes a hot-surface (glow) or spark ignitor element, an orifice or jet sized for a specific fuel type, and the mechanical mounting and electrical connections needed to interface with the oven’s gas valve and control system.
Within the appliance,the ignitor/orifice assembly performs the critical functions of creating the energy necessary to ignite the gas and metering the gas delivered to the burner so the flame establishes correctly and remains stable. It directly interacts with the gas valve and the oven control or safety circuit (which permits gas flow only when the ignitor reaches the proper operating condition), and it is indeed positioned at the bake and/or broil burners inside the oven cavity. Proper selection and installation affect combustion characteristics, heat-up time, flame stability, and overall safety, because incorrect or degraded ignition or orifice sizing can lead to delayed ignition, incomplete combustion, or unsafe gas accumulation.
This article will explain the 316536602 assembly’s functional design and how it interfaces with the oven’s gas and electrical systems, outline which Frigidaire models and fuel types the part is compatible with, and describe common failure symptoms and their diagnostic implications.It will present practical troubleshooting steps and non-invasive tests a technician or experienced appliance owner can perform, discuss considerations for replacement or conversion (including matching part numbers, correct orifice sizing for natural gas versus LP, sealing and connector details), and summarize safety and installation best practices to ensure reliable, code-compliant operation.
table of contents
- Function and Role of the Ignitor/Orifice Assembly in Gas Ignition and Oven Temperature Regulation
- How the 316536602 Frigidaire Oven Ignitor/Orifice Assembly Works Inside the appliance
- Common Failure Symptoms of the Ignitor/Orifice Assembly and Diagnostic Indicators
- Replacement Considerations and Stepwise Installation Procedures for the Ignitor/Orifice Assembly
- Q&A
- In Retrospect
Function and Role of the Ignitor/Orifice Assembly in gas Ignition and Oven Temperature Regulation
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines a hot-surface ignitor and a precisely sized gas orifice to achieve reliable ignition and predictable oven temperature control. The ignitor is a resistive element that must reach a specific operating temperature (and corresponding resistance/behavior) before the oven’s gas valve will open; once open,the orifice meters the fuel flow so the burner produces the correct flame size and heat output for the oven cavity. In practice this means the ignitor controls timing of ignition and the orifice controls combustion rate – a weak or slow-to-heat ignitor will lengthen preheat time and can allow unburned gas to accumulate,while an incorrectly sized orifice (or a clogged orifice) will change flame shape,heat distribution,and the oven’s ability to hold set temperature. installation must match the oven model and the intended fuel type (natural gas vs. LP) because orifice sizing and ignitor specs are engineered for those conditions; using the wrong orifice or incompatible ignitor can cause poor combustion, soot, or unsafe operation.
- Weak or no glow from ignitor – long preheat and failure to light consistently
- Delayed ignition or audible whoosh as accumulated gas ignites
- Yellow or sooty flame - indicates incorrect orifice, pressure, or incomplete combustion
- Intermittent temperature hold or cycling - can be ignitor degradation or flow restriction
Technicians use a combination of visual inspection, multimeter checks, and functional testing to diagnose the assembly: verify continuity and compare resistance characteristics to OEM specifications, observe the ignitor glow time relative to gas valve operation, and inspect orifice size/cleanliness and gas supply pressure. If the ignitor glows but the valve never opens, trace wiring and the valve coil; if the valve opens but flames are weak or sooty, confirm orifice sizing and check for obstructions or incorrect fuel conversion. Replacement guidance for the 316536602 Frigidaire Oven Ignitor/Orifice assembly typically includes shutting off gas and electrical power, installing the matched assembly for the oven model and fuel type, and performing a leak and combustion check after reassembly to verify safe and correct operation.
| Item | description |
|---|---|
| Ignitor | Hot-surface element that must reach operating temperature to permit gas valve actuation |
| Orifice | precision gas jet that sets fuel flow and flame characteristics; sized for fuel type and burner |
| Common replacement triggers | Failure to light, extended preheat, yellow/sooty flame, or inconsistent temperature control |
How the 316536602 Frigidaire Oven Ignitor/Orifice Assembly Works Inside the Appliance
The 316536602 frigidaire oven Ignitor/Orifice Assembly combines a hot-surface ignitor element with an integral orifice and mounting bracket to initiate and stabilize gas combustion in compatible Frigidaire ranges.Electrically, the ignitor must heat to a high temperature and draw sufficient current so the oven’s safety gas valve senses a load and opens; a weak or aging ignitor will glow but fail to reach the required current draw, preventing valve actuation and causing no-heat or extended preheat times. Mechanically, the orifice positions and meters gas into the burner ports so the flame shape and heat output match the oven’s design; misalignment, incorrect orifice sizing, or partial blockages will alter flame characteristics and combustion efficiency.
For technicians and appliance owners,practical verification focuses on three areas: electrical continuity and amp draw for the ignitor,physical condition and alignment of the orifice assembly,and flame appearance during ignition. Replacement compatibility requires matching the assembly’s electrical connector, mounting footprint, and orifice specification to the oven model; an otherwise visually similar ignitor can fail to operate correctly if the orifice size or mounting position differs. Typical diagnostics include continuity testing with a multimeter,measuring current under power,inspecting for carbon or debris in the orifice,and observing flame color and distribution after replacement to confirm correct behavior.
- Common symptoms: no ignition, long preheat, weak or yellow flame, intermittent cycling.
- Key verification steps: continuity test,amp-draw test while energizing,visual inspection of orifice alignment and burner ports.
- Compatibility checks: connector type, mounting holes, orifice size, and ignitor orientation.
| Item | Description |
|---|---|
| Ignition method | Hot-surface element that must reach operating temperature and current draw to open oven safety gas valve |
| Orifice role | Meters and directs gas flow to the burner ports; affects flame profile and heat output |
| Diagnostic focus | Continuity/amp draw, orifice cleanliness/alignment, flame color and distribution |
Common Failure Symptoms of the Ignitor/Orifice Assembly and Diagnostic Indicators
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines the hot-surface ignitor and the matched orifice used to meter gas at the burner. In operation the ignitor must heat to a specific glow temperature and draw sufficient current so the safety valve can open and deliver gas through the orifice; the orifice size then shapes the flame profile and heat input. When the ignitor degrades or the orifice is mismatched (for example, replaced with the wrong gas-type orifice), the oven will exhibit slow warm-up, unstable flame, or fail to maintain temperature as the valve either never opens fully or the delivered gas-air mixture is incorrect for the designed burner geometry.
- Failure to light or continuous clicking without ignition.
- Long preheat times or inability to reach set temperature.
- Weak, lifting, or yellow/sooty flame indicating incomplete combustion.
- Intermittent ignition that works only after multiple attempts or when cold.
- Visible damage to the ignitor (cracks, flaking) or soot/carbon buildup around the orifice.
Diagnostic indicators focus on electrical and visual checks: verify continuity and relative resistance of the ignitor with a multimeter, inspect glow intensity (a visibly dimmer ignitor often draws insufficient current), and observe valve operation when the oven calls for heat. A practical example: if the ignitor glows but the valve never opens, the ignitor is likely under-performing electrically; if the ignitor draws normal current but the flame is weak or sooty, check orifice size and burner alignment. For compatibility, confirm the assembly matches the oven’s gas type and model specifications, since an orifice intended for a different gas pressure or composition will change combustion behavior even with a healthy ignitor.
| Item | Description |
|---|---|
| Basic electrical check | Measure ignitor continuity/resistance and compare to expected relative values for a new unit; a significantly higher resistance or open circuit indicates failure. |
| Combustion observation | Inspect flame color, shape, and stability; yellow or lifting flames or heavy soot point to orifice or air-mixture problems rather than purely electrical faults. |
Replacement Considerations and Stepwise Installation Procedures for the Ignitor/Orifice Assembly
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines the hot-surface ignitor element with the matched gas orifice to produce reliable flame initiation in compatible Frigidaire range models. The ignitor functions by heating to a high temperature and drawing sufficient current to allow the gas safety valve to open; the orifice controls the gas flow rate and flame shape for a given burner manifold pressure. Over time the ignitor’s emission current falls and the orifice can accumulate deposits, resulting in long ignition delays, weak or uneven flames, or repeated valve cycling. Verify compatibility by checking the oven model number, terminal/harness type, mounting hole patterns, and orifice size before replacement to ensure sealing and alignment with the manifold and gas type (natural gas vs. LP).
Replacement is a mechanical and safety-controlled procedure: isolate both electrical power and the gas supply, preserve the original orientation and sealing surfaces, and test for proper current draw and leak-free connections after installation. Practical steps include confirming the replacement part matches the original, removing the oven access panel, documenting wire locations or taking a photo, removing the mounting screws and the orifice retaining fitting, installing the new assembly with proper gaskets or thread seal where specified, and conducting a functional test of ignition timing and a pressure/leak test at the manifold. Avoid over-torquing the orifice; use hand tools and incremental turns to seat fittings, and bench-test the ignitor with a multimeter or clamp ammeter to confirm expected resistance and operating current before final reassembly.
- Confirm part fit (model, terminals, orifice size) and shut off gas and electrical supply.
- Document wiring, remove access panels, and unfasten ignitor and orifice hardware carefully.
- Install new assembly with correct gasket/sealant, torque fittings conservatively, reconnect harness, restore power and gas, then check ignition cycles and perform leak test.
| Item | description |
|---|---|
| Tools | Multimeter or clamp ammeter, leak detection solution, screwdrivers, small wrench set |
Q&A
What is the 316536602 Frigidaire Oven Ignitor/Orifice Assembly?
The 316536602 is an OEM frigidaire replacement assembly that includes the oven hot-surface ignitor (glow ignitor) and the gas orifice/metering component for the bake burner. The ignitor provides the heat to ignite gas, and the orifice controls the gas flow to the burner for the correct flame size.
How do I know if the ignitor/orifice assembly is the reason my oven won’t light?
common symptoms of a failing ignitor/orifice assembly are: the bake burner does not light, long ignition delay with repeated clicking, weak or yellow flame, oven not reaching set temperature, or the safety valve shutting off gas after a short attempt to light.if the ignitor glows but the burner never lights, or the ignitor never glows at all, the assembly is a likely suspect.
Can I test the ignitor to confirm it is indeed bad?
Yes.Use a multimeter to check for continuity; a completely open circuit indicates a failed ignitor. Cold resistance for oven ignitors is normally in the range of tens to a few hundred ohms (manufacturer specs vary). Even with continuity, an ignitor can be weak – a functional test measures current draw when energised (a working hot-surface ignitor typically draws a few amps). If it glows but does not develop enough current to open the gas safety valve, it must be replaced.
Is the 316536602 a direct replacement for my Frigidaire oven?
That part is an OEM Frigidaire assembly used on many Frigidaire ranges, but fitment varies by model and production year. Always confirm compatibility by checking your appliance model number against the parts diagram on the Frigidaire website or the parts supplier’s fitment chart before ordering.
What tools and safety steps are needed to replace this assembly?
Basic tools include screwdrivers,a nut driver or socket set,and pliers.Significant safety steps: turn off and disconnect electrical power to the range, shut off the gas supply, and follow anti-static and grounding practices for electronic controls. After installation, check all gas connections for leaks using a safe soap-and-water leak test or a commercial leak detector. If you are not comfortable working with gas or mains electrical, hire a qualified technician.
How long does replacement usually take and how much does the part cost?
Professional replacement typically takes about 30-60 minutes depending on the range layout. DIY replacement time is often similar if you have basic experience.Part cost varies by supplier and region but generally ranges from moderate to higher depending on whether it’s sold as a full assembly; check current prices from authorized parts distributors.
After replacing the assembly the oven still won’t light – what should I check next?
If the new ignitor/orifice assembly still won’t light, verify: (1) gas supply and shutoff valve are open; (2) the gas regulator and supply pressure are correct; (3) wiring connections to the ignitor and safety valve are secure and undamaged; (4) the safety gas valve and temperature control/ignition module are functioning.Also ensure the orifice is not blocked and the burner ports are clean. When in doubt, call a qualified technician to diagnose gas-valve or control failures.
how long should a replacement ignitor/orifice assembly last, and what causes premature failure?
Ignitors commonly last several years but can fail sooner from normal thermal cycling, vibration, moisture, or contamination. Orifice problems are often caused by debris or corrosion. Proper installation, keeping the oven environment dry, and addressing burner port clogs can extend service life. If the assembly repeatedly fails, investigate upstream issues such as control board faults or voltage irregularities.
In Retrospect
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly plays a central role in oven performance by initiating and sustaining the gas combustion process that produces consistent, controllable heat. As a combined ignitor and orifice component, it helps ensure reliable ignition timing, uniform baking and roasting results, and efficient fuel use; when functioning correctly, it contributes to appliance safety and longevity by promoting proper burner operation.
Because symptoms of a failing ignitor/orifice assembly can overlap with other electrical or gas-related issues,accurate diagnosis is essential before replacement. Confirming the root cause-through appropriate testing, visual inspection, and verification of part compatibility-helps avoid unneeded expense and ensures the repair restores intended performance. When replacement is required, using the correct 316536602 part and following manufacturer recommendations or engaging a qualified service technician will help maintain safe operation and preserve the appliance’s reliability.
the 316536602 Frigidaire Oven Ignitor/Orifice Assembly is a pivotal component for safe, efficient oven operation; careful diagnosis and proper replacement when warranted protect performance and reduce the risk of repeat failures. Routine attention to appliance symptoms and adherence to professional service practices support optimal function and homeowner peace of mind.
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