SYMPTOM

Constant Igniter Sparking (Won't Stop Clicking)

Appliance: Thermador Dual Fuel Range Models: PRD304GHU, PRD364GDHU, PRD366GHU, PRD486GDHU, PRD364NLHU, PRD486NLHU, PRD484NCHU, PRD305PH, PRD364JDGU, PRD366JGU, PRD486JDGU

⚠ What This Means

One or more STAR burner igniters spark continuously and will not stop, even when the burner knob is in the OFF position. This is a grounding or electrical polarity issue that requires an electrician.

🔧 How to Fix

  1. Verify that the range is properly grounded per the Installation Manual.
  2. Check that the electrical power supply has correct polarity (hot, neutral, ground).
  3. Have a qualified electrician inspect and correct the grounding and/or polarity of the electrical supply.

🔍 Possible Causes & Solutions

Possible CauseHow to Fix
Range is not properly groundedHave a qualified electrician ground the range properly per the Installation Manual.
Electrical power supply is incorrectly polarizedHave a qualified electrician correct the polarity of the electrical connection.

Rather Have a Pro Handle This?

Find top-rated Thermador Dual Fuel Range repair technicians in your area. Licensed, insured, and reviewed by homeowners.

🔎 Find Pros on Thumbtack ⭐ Find Pros on Angi

We may earn a referral fee when you hire through our partner links.

❓ Frequently Asked Questions

Why won't my Thermador igniters stop clicking?

Continuous clicking even with knobs OFF indicates a grounding or polarity problem in the electrical supply. A qualified electrician must inspect and correct the wiring.