316536602 Frigidaire Oven ignitor/Orifice Assembly is a combined ignition and gas-metering component used in Frigidaire gas ovens and ranges; it integrates a hot-surface ignitor element with the orifice mounting that directs and restricts burner gas flow. The assembly houses the resistive ceramic or metal ignitor that heats to ignition temperature and the orifice interface that locates the gas port in relation to the burner tube, making it a single replacement item for the oven’s primary bake or broil burner circuit.
Functionally, the ignitor/orifice assembly is part of the appliance’s ignition and gas delivery sub-system and interfaces directly with the oven control, gas valve/manifold, burner tube, and safety interlocks. During a call for heat the control applies power to the ignitor so it reaches the required temperature to ignite gas; onc the ignitor is operating it allows the gas valve to open and the orifice meters the flow to establish the correct flame. Becuase it is both an electrical load and a gas interface, its condition affects ignition timing, flame stability, heat output, and safety sequences (including gas valve actuation and any flame-detection circuitry used by the appliance).
In this article readers will find a technical overview of how the 316536602 assembly operates, guidance on compatibility and mounting locations, typical failure symptoms (for example no ignition, slow or delayed ignition, weak flame, or repeated safety lockouts), and diagnostic approaches useful to a technician or engineer-such as inspection points and tests to distinguish ignitor, orifice, valve, and control faults. The article also covers replacement considerations including selecting the correct part, verifying seals and mounting orientation, and the practical safety precautions and system checks to consider when removing and installing the assembly.
Table of Contents
- Function and Role of the Oven Ignitor/Orifice in Frigidaire gas Oven Combustion Control
- How the 316536602 Frigidaire Oven ignitor/Orifice Assembly Works Inside the Appliance: Ignition Circuit,Thermal Characteristics,and Gas Flow
- Common Failure Symptoms and Measurable Indicators of Ignitor or Orifice Degradation
- Troubleshooting and Diagnostics: Test Procedures,Multimeter Readings,and Safe Verification Steps
- Q&A
- In summary
Function and Role of the oven Ignitor/Orifice in Frigidaire Gas Oven Combustion Control
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines the oven’s hot-surface ignitor with the fixed orifice that meters gas flow to the burner. In operation the ignitor is a resistive glow element that reaches a high surface temperature to reliably ignite gas when the oven control and gas valve permit flow; the orifice is a precision-machined jet that determines the volume and velocity of gas delivered for a stable flame. As the ignitor and orifice work together to establish safe,repeatable combustion,this OEM assembly is intended to match the oven’s original gas type and manifold pressure-using the wrong orifice size or a degraded ignitor will change combustion behavior and temperature response.
Technically, failure modes are distinct: a weak or aging ignitor can still glow but not reach ignition temperature quickly, producing long light-up times or preventing the valve from cycling correctly, while a blocked or incorrect orifice leads to small, yellow, or sooty flames and poor temperature control. Practical field checks include visually inspecting the glow element, confirming correct orifice identification for natural gas versus LP, and observing ignition timing and flame pattern under normal operating pressure. Typical diagnostic cues and considerations are listed below, with a swift reference for the assembly’s role and characteristics.
- Slow heat-up or no light: often an ignitor with insufficient heat output.
- Yellow/sooty flame: possible orifice blockage or wrong orifice size for gas type.
- Intermittent ignition: can indicate deteriorating ignitor or wiring/connector issues.
- Replacement guidance: match part number 316536602 and verify gas type before installation.
| Item | Description |
|---|---|
| Ignitor type | Resistive hot-surface element (glow) that provides ignition heat. |
| Orifice | Fixed gas jet sized for specific gas type and manifold pressure. |
| primary function | Coordinate gas metering and ignition timing to achieve consistent combustion. |
How the 316536602 Frigidaire Oven Ignitor/Orifice Assembly Works Inside the Appliance: Ignition Circuit, Thermal Characteristics, and Gas Flow
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines a hot-surface ignitor and a matched gas orifice to control both the electrical ignition circuit and the downstream gas flow. In operation the ignitor functions as a resistive heating element: when the control sends voltage, the element heats to its operating temperature and its resistance changes so that it draws the rated current needed to actuate the oven’s safety gas valve. The timing and magnitude of that current are integral to reliable ignition – if the ignitor dose not reach the required thermal-emission level within a few seconds, the valve will not open or will cycle repeatedly. The orifice portion sets the volumetric flow and pressure drop for the burner; correct orifice sizing and sealing against the manifold determine flame shape and combustion stability, and compatibility with LP versus natural gas requires the proper orifice calibration or conversion kit.
Technically, faults in either the heating element or the orifice produce characteristic behaviors that guide diagnosis and replacement decisions. A degraded ignitor shows longer glow times, reduced surface temperature, and insufficient current draw that leaves the safety valve closed; a blocked or undersized orifice yields small, yellow, or lifting flames despite an otherwise healthy glow.Practical service checks include measuring continuity and cold resistance of the ignitor, observing warm-current draw during a start cycle, and visually inspecting the orifice for deposits or incorrect sizing during a fuel-type conversion. For field compatibility verify connector type,mounting flange,and orifice specification before substitution to ensure proper electrical interfacing and safe gas flow characteristics.
- Common symptoms: prolonged preheat, intermittent ignition, weak/yellow flame, or complete failure to light.
- Key checks: cold-resistance and warm-current behavior of the ignitor, orifice size and cleanliness, and secure manifold sealing.
| Item | Description |
|---|---|
| Ignitor | Hot-surface resistive element that must reach sufficient temperature/current to actuate the safety gas valve. |
| Orifice | Precision opening that controls gas flow rate and flame characteristics; must match fuel type and manifold pressure. |
Common Failure Symptoms and Measurable Indicators of Ignitor or Orifice Degradation
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly is a combined ignition and gas metering component that both initiates combustion and shapes the gas flow for consistent burner performance.In normal operation the ignitor element must heat to visible red glow within the expected warm-up interval so it draws sufficient current to allow the safety gas valve to open; the orifice then meters gas to produce the intended flame pattern. Technicians shoudl verify appliance model compatibility and valve type before replacement,and expect consistent glow intensity,stable electrical characteristics,and a centered,blue-steady flame when the assembly is functioning correctly.
Common, measurable indicators of ignitor or orifice degradation include prolonged warm-up time, reduced current draw, changes in resistance, and altered flame geometry; these can be confirmed with a stopwatch, clamp meter, and multimeter during a controlled ignition cycle. Practical examples: an ignitor that takes substantially longer than the typical 10-30 seconds to reach full glow, an open or markedly higher resistance reading on the element, or a clamp-meter measurement that shows current below the valve-actuation threshold (frequently enough near 3 A for many oven ignitors) all point to replacement. Also inspect the orifice and flame visually: a soft, lifting, or yellow/tipped flame, or recurring burner outage with a detectable gas odor before ignition, indicate orifice restriction or improper metering and should be addressed as part of diagnosis and repair.
- Prolonged glow/warm-up (timed measurement)
- Low or absent current draw during glow (clamp meter)
- High resistance or open circuit on ignitor element (multimeter)
- Irregular or yellow-tipped flame,flame lift,or delayed ignition
| Item | Description |
|---|---|
| Ignitor resistance | Measure cold resistance; a sudden open or large increase signals degradation |
| Ignition warm-up time | Time from start to full red glow; significantly longer than the model’s normal range indicates weakening |
| Current draw | Clamp-meter check during warm-up; values below the valve-spec threshold commonly cause failure to open |
| Flame pattern | Visual check for steady blue flame centered on the burner; yellow,lifting,or asymmetric flame suggests orifice/flow issues |
Troubleshooting and Diagnostics: Test Procedures,Multimeter Readings,and Safe Verification Steps
The 316536602 Frigidaire Oven Ignitor/Orifice Assembly combines a resistive glow ignitor and a matched gas orifice; the ignitor heats to a high temperature to allow the gas valve to open under load while the orifice meters the inlet gas so the burner develops a stable flame. Technicians should inspect both elements: the ignitor for physical cracks, discoloration, or broken leads and the orifice for carbon buildup or deformation that restricts flow.Compatibility depends on the oven model’s harness and valve geometry – the assembly must match mounting points and connector types so the ignitor draws the correct current through the oven’s gas valve circuit and the orifice provides the intended volumetric flow for safe combustion.
Troubleshooting starts with safety: disconnect electrical power and shut off the gas supply before removing the assembly. With the ignitor isolated, measure DC or AC resistance with a multimeter; many glow-bar ignitors measure in the tens of ohms (commonly 30-120 Ω) but you should compare to the model spec. For live tests, verify line voltage (typically ~120 VAC) at the control/ignitor terminal when the controller calls for heat and measure current with a clamp meter – a functioning glow ignitor will draw several amps (commonly in the 2-4 A range depending on design) so a voltage present but low current indicates a weak ignitor. Observe final verification: the ignitor should glow brightly and the burner flame should be sharp and mostly blue; a dull glow with delayed ignition or a yellow, lifting flame points to either insufficient ignitor heat or a restricted orifice. Use a gas leak check and flame observation as the final safety verification after reassembly.
- Power and gas off before disassembly
- Measure ignitor resistance with leads disconnected
- Check for ~120 VAC at call-for-heat (live test only with proper precautions)
- measure current draw with a clamp meter during ignition cycle
- Inspect flame quality and perform a gas leak test after reassembly
| Item | Description |
|---|---|
| Expected Resistance | Typically tens of ohms (roughly 30-120 Ω); compare to OEM spec |
| Operating Voltage | Line voltage at ignitor circuit when energized (≈120 VAC) |
| Typical Current Draw | Several amps during heat call (commonly 2-4 A depending on design) |
| Common Symptom | No continuity or high resistance → no glow; low current with voltage present → weak ignitor; flame yellow or delayed → orifice restriction or ignition delay |
Q&A
what is the 316536602 Frigidaire Oven Ignitor/Orifice Assembly and what does it do?
This assembly combines the hot surface ignitor (the electrical element that glows to ignite gas) and the gas orifice/mounting hardware that directs gas to the burner. When the oven calls for heat the ignitor heats and becomes incandescent; that heat allows the safety gas valve to open and gas to flow through the orifice where it is ignited by the glowing ignitor, producing the oven burner flame.
how can I tell if this ignitor/orifice assembly is failing?
Common signs of failure include long ignition times, the oven taking a long time or failing to reach temperature, the ignitor not glowing or glowing weakly (dim orange rather of bright orange/white), repeated clicking without ignition, or an oven that lights only intermittently. Visible damage, cracks in the ignitor, or a sooty/irregular flame at the burner are also indicators.
How do I test the ignitor to confirm it is the problem?
Start with a visual check for cracks or broken terminals. Use a multimeter to check for continuity across the ignitor (an open circuit indicates a failed element). For operational tests, with safe procedures, measure whether the oven is sending voltage to the ignitor when a bake cycle is called; if voltage is present but the ignitor does not heat sufficiently, the ignitor is weak and should be replaced. Technicians often measure current draw with a clamp meter during ignition - a weak ignitor draws significantly less current than a healthy one; compare readings to the service spec for the oven model.
Can I replace the assembly myself, and what safety precautions should I take?
You can replace it if you are pleasant working with gas and electrical components, but follow strict safety steps: disconnect electrical power to the appliance, shut off the gas supply, allow the oven to cool, and work in a well-ventilated area. after replacement, check all gas connections for leaks with a soap-and-water solution (never use an open flame). If you are not experienced with gas appliances, hire a qualified appliance technician or plumber to perform the replacement and leak test.
What tools and materials will I need to replace the 316536602 assembly?
Typical tools include screwdrivers or nut drivers to remove panels and burner components, a wrench for the gas line connection, a multimeter for electrical checks, and a small brush if you need to clean the area. You may also want a clamp meter if measuring current. Use appropriate replacement gaskets or seals as required by the manufacturer. Do not overtighten fittings and only use thread sealant appropriate for the type of fitting (do not use pipe thread sealant on compression or flare fittings).
What are the basic steps to install the new ignitor/orifice assembly?
General steps: 1) Disconnect power and shut off gas. 2) Remove oven racks and the oven bottom to access the burner area. 3) Disconnect the ignitor’s electrical connector and remove the mounting screws that hold the old assembly in place. 4) Remove the old assembly, install the new unit in the same orientation, secure the mounting screws, and reconnect the electrical connector. 5) reassemble panels, restore power and gas, and perform a function and gas-leak check before normal use. Always refer to the appliance’s service manual for model-specific instructions.
Can I clean the orifice instead of replacing the assembly if the burner is clogged?
Minor debris in the orifice can sometiems be cleared, but orifices are small and easily damaged; cleaning can be difficult and may not restore correct gas flow or safety. Because ignition performance is critical for safety, many technicians recommend replacing the orifice/ignitor assembly rather than attempting delicate cleaning.If you do attempt cleaning, do it carefully and inspect for proper flame shape and stability after reassembly.
How do I confirm this is the correct replacement part for my oven?
Always verify compatibility by matching the oven’s full model number (usually on a tag behind the door or on the oven frame) to the part number in the manufacturer’s parts list or a reputable parts distributor. Part 316536602 might potentially be listed as an OEM Frigidaire assembly or have cross-references; use the official parts diagram for your specific model or consult a Frigidaire-authorized service center to confirm fit and function before purchasing.
in Summary
The 316536602 Frigidaire oven Ignitor/Orifice Assembly is a critical component in gas oven operation, combining the ignitor’s ability to reliably initiate combustion with the orifice’s role in metering gas flow to the burner. Proper function of this assembly supports consistent ignition, stable flame characteristics, accurate temperature control and efficient fuel use, all of which contribute to safe and predictable oven performance.
Because symptoms of a failing ignitor/orifice assembly-such as extended preheat times,uneven cooking,or intermittent ignition-can also stem from other parts or installation issues,accurate diagnosis is essential. When replacement is resolute to be necessary, using the correct OEM part and ensuring correct installation helps restore intended performance, maintain safety margins, and avoid unneeded repeat repairs.
For these reasons, owners and technicians should prioritize careful inspection and testing by qualified personnel, follow manufacturer guidelines, and consider routine maintenance to prolong service life. Thoughtful diagnosis and timely replacement of the 316536602 assembly help preserve oven reliability, efficiency and occupant safety.
Professional Appliance Service
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