Satronic / Honeywell TFI 812 Gas Burner Control Box
Satronic / Honeywell TFI 812 Gas Burner Control Box Reset button lamp lit (lockout): Illuminated reset button
The burner control enters a safety lockout due to a missing flame, weak flame signal, or low voltage, stopping the burner.
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
- Reset button lamp lit (lockout)
- Name
- Illuminated reset button
- Controller
- Satronic / Honeywell TFI 812 Gas Burner Control Box
- Type
- General fault
- 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 5 common causes listed for this code
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does Satronic / Honeywell TFI 812 Gas Burner Control Box Reset button lamp lit (lockout) mean?
The burner control enters a safety lockout due to a missing flame, weak flame signal, or low voltage, stopping the burner.
Is Satronic / Honeywell TFI 812 Gas Burner Control Box Reset button lamp lit (lockout) 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 Satronic / Honeywell TFI 812 Gas Burner Control Box Reset button lamp lit (lockout)?
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 Satronic / Honeywell TFI 812 Gas Burner Control Box codes
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