Thermador Star Burner Won't Ignite
Star Burner Won't Ignite is usually one of a small number of specific, repairable causes — here's what to check and when it's worth calling a professional.
Common Causes
Blocked ports rather than a failing igniter
Hard water and its residue collect at burner ports over time, producing the uneven light that gets reported as an ignition fault.
A dirty or misaligned igniter
Debris or grease buildup prevents a clean spark, which is the single most common cause of ignition failure.
A faulty gas valve or regulator
Controls gas flow to the burner and can fail independently of the igniter.
What You Can Check Yourself
Parts That Most Likely Need Replacing
Based on symptoms like this, these are the components our technicians check first. The exact part depends on your model and what we find during diagnosis.
In and around Mountain View
Mountain View — Substantial Eichler tracts at Monta Loma and Waverly Park alongside older stock downtown, so slab construction is a routine consideration rather than an exception. We also cover Santa Clara, Sunnyvale, Cupertino across North Valley.
ZIP codes we cover in Mountain View: 94035, 94039, 94040, 94041, 94042, 94043
This is worth addressing promptly — continuing to use the unit in this state risks further damage. If you're seeing a code on the display alongside this issue, our Thermador error code guide can help narrow down the cause before we arrive. Either way, our repair service covers same-day diagnosis and a flat-rate quote before any work begins.
Common Questions About Star Burner Won't Ignite
Can I keep using my Thermador appliance while this happens?
Will star burner won't ignite go away on its own?
How much does this repair typically cost?
How long does a typical repair visit take?
Do you offer a warranty on the repair?
Do you service Thermador appliances in my area?
Still having this issue?
Same-day diagnosis, genuine OEM-compatible parts, warranty of up to 1 year.
*SubZero Repair San Jose is an independent repair company and is not affiliated in any way with Sub-Zero, Inc., Wolf Appliance, Inc., or any of their distributors. We are not a factory service provider and specialize exclusively in out-of-warranty appliance repairs.