316536602 Frigidaire Oven Ignitor/Orifice Assembly is a combined ignition and gas metering component used in Frigidaire gas ovens and ranges; it typically integrates a hot-surface or spark-type ignitor element with the orifice that meters gas to a bake or broil burner and is mounted at the burner manifold. As a discrete assembly it provides the physical interface between the gas supply and the combustion zone and includes electrical connections, mounting hardware and the precision-sized orifice that determines burner flow rate.
Inside the appliance the ignitor/orifice assembly serves two primary functions: initiating and sustaining combustion by heating or producing a spark to ignite incoming gas, and controlling the gas flow rate through the orifice to establish the correct burner flame. The part interfaces directly with the oven control or safety valve (wich times and meters gas delivery), the gas manifold and tubing, and the oven’s flame sensing and temperature control systems. Proper interaction among these systems ensures reliable ignition,stable flame characteristics and accurate oven temperature control; faults in the assembly can produce long ignition times,incomplete combustion,or failure of the safety interlocks to operate correctly.
In this article readers will find a technical review of the 316536602 assembly covering its functional purpose,relevant electrical and mechanical compatibility considerations (mounting,connector type,orifice sizing and basic specifications),common failure symptoms to recognize,diagnostic checks a technician can perform,and practical replacement considerations such as part verification,safe isolation of gas and electrical supplies,leak and ignition verification after installation,and factors that influence selection of the correct replacement. The intent is to provide technicians, engineers and informed appliance owners with actionable context to assess, troubleshoot and replace the component while observing standard safety precautions.
Table of Contents
- Function and Role of the Oven Ignitor/Orifice Assembly in Burner Ignition and Gas Flow Control
- How the 316536602 Frigidaire Oven Ignitor/Orifice Assembly Operates Within Frigidaire Gas Ovens
- Common Failure Symptoms and Diagnostic Measurements for Ignitor and Orifice Malfunctions
- Replacement Considerations, Installation Procedure and Safety Checks for the Ignitor/Orifice Assembly
- Q&A
- The Conclusion
Function and Role of the Oven Ignitor/Orifice Assembly in Burner Ignition and Gas Flow Control
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly pairs a hot surface ignitor with a precisely machined orifice to perform two coordinated functions: provide the thermal energy necessary to ignite the burner and meter gas flow to each burner port. The ignitor acts as both the heat source and the electrical load in the valve circuit – as it heats, its electrical characteristics change and the resulting current through the valve coil allows the main gas valve to open. The orifice is sized to match manifold pressure and burner design so that, once the valve opens, the delivered gas volume produces a stable flame pattern and the intended heat output for the oven cavity.
- Ignition control: the ignitor generates the heat and electrical draw required to actuate the gas valve.
- Gas metering: the orifice sets maximum flow to achieve correct air-fuel ratio and flame shape.
- Failure symptoms: weak or aging ignitor produces long glow time or failure to open the valve; incorrect orifice causes yellow flame, soot, or insufficient heat.
| Item | Description |
|---|---|
| Component | Hot surface ignitor with matched orifice jet |
| Electrical | Designed for standard oven supply; ignitor heating current must reach valve actuation threshold |
| Gas compatibility | Orifice sizing is specific to Natural or LP service; conversion requires correct jet size |
For technicians and appliance owners, practical compatibility checks include confirming the part number and ensuring the orifice size matches the oven’s gas type; a replacement ignitor with lower operating current can glow but fail to open the valve, producing a no-light condition or long pre-ignition glow.During troubleshooting, measure the ignitor’s operating behavior (glow time and current draw) and verify manifold pressure and valve function rather than replacing the ignitor alone; when a conversion between natural gas and propane is performed, change the orifice to the correct size rather than using an unmatched assembly to avoid improper combustion and safety hazards.
How the 316536602 frigidaire Oven Ignitor/Orifice Assembly Operates Within Frigidaire Gas Ovens
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines a resistive glow ignitor element with a precision gas orifice into a single replacement unit used on many Frigidaire gas ovens. The ignitor is a high-resistance ceramic-glass element that must heat to a specific temperature and draw sufficient current so the oven’s gas safety valve will open; the ignitor’s warm-up time and current draw determine ignition timing and reliability. The attached orifice is a machined brass fitting that meters gas flow and shapes the burner jet, so correct manifold pressure and orifice sizing produce a stable, blue flame and consistent oven temperatures rather than sputtering or yellow-tipped combustion.
Technicians use the assembly to restore reliable ignition and flame characteristics without separate matching of element and orifice, but compatibility must be checked against the oven model and manifold thread spec before installation. Practical diagnostic cues for a failing assembly include extended preheat times, weak or intermittent glow on the ignitor, and poor flame shape; diagnostics are typically by visual inspection, a resistance check of the ignitor with a multimeter, or measuring current draw during the warm-up cycle with a clamp meter. Routine service actions include verifying gas pressure, clearing debris from the orifice, confirming correct installation torque and alignment, and replacing the assembly when the ignitor fails to reach its operating temperature or the orifice is damaged.
- Symptoms: slow preheat, no ignition, uneven baking, yellow or lifting flame
- Service checks: visual glow, resistance continuity, clamp-meter current during ignition
- Compatibility considerations: manifold thread/orifice size and electrical connector type
| Item | Description |
|---|---|
| Ignitor | Resistive heating element that must reach operating temperature to allow the gas valve to open |
| Orifice | Machined gas jet that meters flow and determines flame shape and heat output |
| Common failure modes | Reduced ignitor current/slow glow, clogged orifice, misalignment or damaged threads |
Common Failure Symptoms and Diagnostic Measurements for Ignitor and Orifice Malfunctions
The 316536602 Frigidaire Oven Ignitor/orifice Assembly combines a hot surface ignitor and a matched burner orifice to establish reliable gas ignition in compatible Frigidaire ovens. The ignitor’s role is to draw sufficient current and heat to open the gas valve and ignite gas delivered through the orifice; the orifice meters the gas flow to produce the correct flame size for the oven’s burner. Compatibility is persistent by oven model and burner geometry, so technicians should confirm the OEM part number and connector/pin configuration before installation. in practice, a failing ignitor or incorrect orifice sizing presents as reduced flame, longer preheat times, or unstable flame characteristics rather than electrical or gas anomalies elsewhere in the system.
- Delayed or no ignition; long preheat times
- Weak or yellow flame at the oven burner
- Intermittent ignition or cycling of the gas valve
- Visible cracking or discoloration of the ignitor element
Diagnosing ignitor and orifice faults combines visual inspection with simple electrical and gas-side measurements. With power isolated,measure cold resistance across the ignitor leads using a multimeter-healthy hot surface ignitors typically show resistance in the single-digit to low‑tens of ohms; a very high or open reading indicates a failed element. With the oven calling for heat, verify the control supplies ~120 VAC at the ignitor connector and use a clamp ammeter or inline meter to check that current draw reaches the level expected by the oven (a significantly reduced current means the element is not heating to ignition temperature). On the gas side,confirm the orifice is the correct size for the burner and that pressure at the manifold matches specification; a correct orifice with insufficient manifold pressure or a degraded ignitor will still produce ignition issues.
| Item | Description |
|---|---|
| Resistance (cold) | typically single-digit to low‑tens of ohms; open or very high = failed ignitor |
| Supply voltage | Approximately 120 VAC at the ignitor connector when the controller calls for heat |
| Symptom examples | Long preheat, weak flame, intermittent ignition |
Replacement Considerations, Installation Procedure and Safety Checks for the Ignitor/Orifice Assembly
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines the electric ignitor element with the gas orifice mounting to control and initiate burner ignition; the ignitor provides the heat and current signal required by the oven gas valve while the orifice precisely meters gas flow for the burner port. This assembly behaves as both an electrical load and a flow restriction: a weakened ignitor (reduced heating or open circuit) can prevent the valve from opening, and an incorrectly sized orifice will change flame shape and combustion characteristics. Confirm compatibility by matching the assembly part number to the appliance model number and gas type (natural vs. LP) before purchase; if converting fuel types, replace the orifice to the correct size rather than modifying the ignitor. Practical examples include diagnosing an oven that takes several minutes to light (often an ignitor with insufficient current draw) or an oven with a sooty/yellow flame (commonly an orifice size or pressure issue).
- Disconnect power and shut off the gas supply before any work; confirm both with the meter and the gas valve position.
- Document wire locations and take photos of the assembly to ensure correct reassembly of spade terminals and grounding.
- Handle the ignitor element without contacting the ceramic/glass surface; install the mounting gasket/seal to maintain correct burner alignment.
- After mechanical installation, perform an electrical continuity check and a live operational test while observing flame characteristics and performing a gas-leak check on fittings.
| Item | Description |
|---|---|
| Mounting | secure to burner box with OEM screws; ensure gasket is intact and burner cup alignment is correct. |
| Electrical connection | use original spade connectors; verify wire insulation and chassis grounding per service manual. |
| Gas type | Confirm Natural vs. LP; swap orifice when fuel type differs from original specification. |
| Post-install checks | Continuity/operational test, steady blue flame observation, soap or electronic leak detection on joints. |
During final safety checks, observe the flame across a range of settings: a sharp steady blue flame centered at the burner port indicates correct orifice and manifold pressure, while lifting, yellowing, or flame roll-out indicates adjustment or further service is required. Verify ignitor function electrically by measuring continuity and, if available from the service manual, the operating current; compare readings to manufacturer specifications rather than relying on visual inspection alone. If a leak is detected, retorque fittings to manufacturer torque values or replace components; do not place the oven back into service until both electrical and gas safety checks pass and any altered orifice or ignition timing conforms to the appliance’s service documentation.
Q&A
What exactly is the Frigidaire 316536602 ignitor/orifice assembly?
It’s an OEM replacement assembly for certain Frigidaire gas ovens that combines the hot-surface (glow) ignitor and the burner orifice/nozzle.The ignitor provides the heat to ignite the gas, and the orifice meters the correct gas flow. Always verify compatibility with your oven model number before purchasing.
What symptoms indicate this assembly is failing?
Common signs include very long preheat times, the oven not reaching temperature, the oven burner not lighting even though the ignitor glows, the broiler failing to light, or intermittent ignition.Smelling gas without ignition is also a red flag-stop using the appliance and address it immediately.
How can I test the ignitor to see if it needs replacing?
Start with a visual check: the ignitor should glow luminous orange when powered. For electrical testing, use a multimeter to check for continuity or low resistance (typically in the low tens of ohms). Resistance alone isn’t definitive: the best test is an in-circuit amp draw using a clamp ammeter while the oven is calling for heat-most hot-surface oven ignitors draw in the multi-amp range (commonly around 3-4 A) when operating; if the amp draw is significantly below the required value, the gas valve may not open and the ignitor should be replaced. Refer to the oven’s service manual for exact specs.
Does this part work for both natural gas and LP (propane) ovens?
Not necessarily. Orifice size determines gas flow and different sizes are required for natural gas vs. LP. Some assemblies are specific to a gas type or include a different orifice for conversion. If converting fuel type you must use the correct orifice and perform any required regulator adjustments-follow the manufacturer’s conversion instructions or hire a qualified technician.
Can I replace only the ignitor, or do I need the whole assembly?
It depends on the oven design. On some Frigidaire models the ignitor is replaceable separately; on others the ignitor and orifice are sold together as an assembly (316536602). If the orifice is corroded or sized incorrectly, replacing the whole assembly is advisable. Check parts diagrams for your exact model and use OEM parts for best fit and safe operation.
What are the basic steps to replace the ignitor/orifice assembly?
High-level steps: (1) Turn off electrical power to the range and shut off the gas supply.(2) Remove oven racks and access the burner/ignitor area (lower panel or back panel depending on model). (3) Disconnect the ignitor wiring (note positions) and loosen the gas line/orifice fittings if required. (4) Remove mounting screws and the old assembly. (5) Install the new assembly, tighten fittings, reconnect wiring, and reassemble panels. (6) Restore gas and power, test ignition, and check all gas connections for leaks with a soap solution or approved leak detector. If unsure at any step,stop and call a qualified technician.
Is it safe to replace this myself, and how long will it take?
If you are comfortable working with both household electricity and gas and follow safety procedures (power/gas off, leak testing), this is a doable DIY job for many homeowners-typical replacement time is 20-60 minutes. If you are not confident or local codes require a licensed technician for gas work, hire a professional. Always perform a thorough leak check after reassembly.
How long does an ignitor/orifice assembly usually last and how much will a replacement cost?
Service life varies with use and conditions but ignitors commonly last several years (frequently enough 5-10+ years). Costs vary by supplier and region; OEM assemblies generally cost more than aftermarket parts. If you hire a technician, add labour costs. For an accurate price estimate, check current part listings for 316536602 and get local labor quotes.
The Conclusion
the 316536602 Frigidaire oven Ignitor/Orifice Assembly plays a central role in gas oven operation by initiating and regulating the burner flame. As a combined ignitor and gas orifice component,it directly affects ignition reliability,heat-up time,and consistent oven temperature. When functioning correctly,this assembly ensures efficient combustion and safe operation,contributing to overall appliance performance and longevity.
Accurate diagnosis is essential when symptoms such as no heat, delayed ignition, or uneven cooking appear. verifying the cause-through visual inspection, appropriate electrical tests, and observation of flame behavior-helps distinguish ignitor/orifice issues from other faults like control or safety components. Proper diagnosis prevents unnecessary part changes and targets the underlying problem efficiently.
When replacement is necessary, using the correct 316536602 assembly and following manufacturer guidelines or professional installation practices restores performance and maintains safety. Timely, correct replacement minimizes further stress on appliance systems and reduces risks associated with improper ignition. For gas appliance work, consider qualified service personnel if there is any uncertainty about diagnosis or installation to ensure safe, reliable results.
Professional Appliance Service
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