Siemens LMG Gas Burner Control (Bentone STG)
Siemens LMG Gas Burner Control (Bentone STG) 5 blinks: Red LED: 5 blinks
Extraneous light was detected during the pre purging cycle, which causes the gas burner control to fault and stop operating.
Safety first. This code involves a gas, flame or electrical hazard. Do not keep resetting it. Leave burner, gas train and high voltage work to a qualified technician. WERCS answers 24/7 at (877) 489-3727.
- Code
- 5 blinks
- Name
- Red LED: 5 blinks
- Controller
- Siemens LMG Gas Burner Control (Bentone STG)
- Type
- Flame failure
- What it does
- Lockout: the control shuts down and stays off until it is reset
- Risk
- RED Specialist territory
- Reset
- Needs a manual reset
- Source
- The manufacturer's manual (subscribers see which manual and page)
Updated July 23, 2026
How to fix it
Subscribers get:
- What to do next, in plain words
- Which manufacturer manual it comes from, linked
- The 3 common causes listed for this code
- The step by step check for this problem, one check at a time
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does Siemens LMG Gas Burner Control (Bentone STG) 5 blinks mean?
Extraneous light was detected during the pre purging cycle, which causes the gas burner control to fault and stop operating.
Is Siemens LMG Gas Burner Control (Bentone STG) 5 blinks dangerous?
It is graded red, specialist territory: it involves a burner, gas, flame or safety lockout, so leave the repair to a qualified technician.
How do I fix Siemens LMG Gas Burner Control (Bentone STG) 5 blinks?
The manual's fix and the step by step check for this code are in WERCS Diagnose, plans from $49 a month. For help right now, WERCS answers 24/7 at (877) 489-3727.
Other Siemens LMG Gas Burner Control (Bentone STG) codes
2 blinks · Red LED: 2 blinks3 blinks · Red LED: 3 blinks4 blinks · Red LED: 4 blinks7 blinks · Red LED: 7 blinks18 blinks · Red LED: 18 blinks19 blinks · Red LED: 19 blinks20 blinks · Red LED: 20 blinks
All 8 Siemens LMG Gas Burner Control (Bentone STG) codes · Every fault code