Thermador PRDS366 star burner Parts

Common Thermador issues usually fall into a few buckets: gas ignition problems (clicking but no flame), uneven heating or temperature swings, drainage or leak symptoms, and intermittent electrical behavior. For Thermador PRDS366 range and star burner setups, the most frequent day-to-day complaint is burner ignition and flame quality.

Common issues by appliance type

• Gas ranges/cooktops (including PRDS366 burners): burner won’t ignite, constant clicking, weak/uneven flame, flame goes out
• Ovens: not heating, bakes unevenly, broil not working, long preheat times
• Dishwashers: not draining, poor cleaning, water left in tub, door leaks
• Refrigerators: not cold enough, ice maker not working, water leaks, noisy operation

Quick checks we recommend first (safe, no tools)

• Confirm the gas supply valve is fully open and other gas appliances work normally.
• Clean and dry burner caps and ports; moisture and debris commonly cause clicking and mis-ignition.
• Make sure burner parts are seated correctly after cleaning.
• For ovens, verify the correct bake mode and avoid blocking airflow with oversized pans.
• For any unit with odd electrical symptoms, reset power at the breaker for 1 minute, then restore.

Symptoms and the most common causes

Symptom	Most common cause	What to do next
Clicking but no flame	Wet/dirty burner parts, misaligned cap	Clean, dry, reseat burner parts
Weak yellow flame	Clogged ports, airflow issue	Clean ports; check for proper cap placement
Oven temp off	Sensor drift, calibration needed	Use an oven thermometer; adjust settings if available
Dishwasher won’t drain	Clog in filter/drain path	Clean filter area; check drain hose routing

Why it matters

Catching ignition, heating, and drainage problems early helps prevent repeat failures, reduces soot and odor issues on gas burners, and avoids secondary damage like overheating components or water leaks.

Helpful DIY reading

If you’re ordering accessories or trying to confirm you have the right model information before buying, use how to find your appliance model number (and what it means for parts).

Last updated: February 2026

For the Thermador PRDS366, the igniter part number depends on which igniter you mean (surface burner spark igniter, oven bake igniter, or broil igniter) and the exact PRDS366 version. We match the correct igniter by using your model’s parts breakdown and the igniter’s location.

Identify which igniter you need

Use these quick checks before ordering:

• Surface burner not clicking/sparking: you’re usually looking for a spark electrode (surface igniter) at that burner.
• Oven won’t heat but you smell gas: you’re usually looking for an oven hot surface igniter (glow bar).
• Broil won’t light: you’re usually looking for a broil igniter (if equipped).
• Only one burner fails: it’s typically a single-burner electrode/igniter, not a module.
• All burners fail to spark: it’s often the spark module, wiring, or power supply issue.

How we help you get the exact part number

Because this PRDS366 accessory parts page does not list model-specific igniter part pages, the most reliable way to get the exact Thermador igniter part number is to confirm the full model ID from the rating plate, then match the igniter by diagram and position.

• Confirm the model number is PRDS366 and note any suffix/version details.
• Identify the igniter location (left front burner, oven bake, etc.).
• Compare the old part’s markings (if any) and connector style.

For help locating and confirming the full model number format we use for parts matching, see how to find your appliance model number (and what it means for parts).

Common igniter types and what they control

Igniter type	Where it is	What it does
Spark electrode (surface igniter)	At each surface burner	Creates the spark to light the burner
Hot surface igniter (oven)	Near bake burner	Heats up to ignite gas for baking
Spark module (ignition module)	Inside range body	Sends spark to one or more electrodes

Why it matters

Thermador ranges often use different igniters across burners and oven functions; ordering by a generic “Thermador igniter” number can lead to the wrong fit, wrong connector, or incorrect mounting.

Last updated: February 2026

On a Thermador PRDS366, a burner usually won’t ignite when the burner ports or igniter area are wet, greasy, or clogged, or when the igniter is not sparking consistently. Cleaning and drying the burner head and confirming you have a strong spark at the electrode fixes most no-ignite problems.

Quick checks (most common fixes)

• Make sure the burner cap is seated flat and centered on the burner head.
• Dry the burner head and around the igniter electrode after boil-overs or cleaning.
• Clear clogged burner ports with a soft brush or wooden toothpick (don’t enlarge the holes).
• Listen for clicking; if it clicks but won’t light, the ports are usually blocked or the cap is misaligned.
• If there’s no clicking, check for a tripped breaker or a loose power cord (spark ignition needs power).

What to inspect if it still won’t light

What you notice	Likely cause	What we recommend
Clicks, gas smell, no flame	Clogged ports or mis-seated cap	Clean ports; reseat cap; try again
Clicks, no gas smell	Gas supply issue	Confirm other burners work; verify gas shutoff valve is open
No clicking on any burner	No power to ignition	Restore power; then retest
One burner clicks weakly or intermittently	Dirty/worn igniter electrode or wiring issue	Clean and dry; inspect wire connection; replace failed components

Why it matters

A weak spark or restricted gas flow can prevent ignition and can also cause delayed ignition (a “whoosh” when it finally lights). Keeping the burner ports and igniter area clean helps the star burner light quickly and burn evenly.

Helpful DIY guidance

If you’re comfortable doing basic checks, use our safety and tool tips in are diy appliance repairs safe and must have tools for appliance repair before inspecting wiring, switches, or ignition components.

Last updated: February 2026