Weishaupt W-FM 200 Combustion Manager
Weishaupt W-FM 200 Combustion Manager code 25: Loc.c 25 / Err.c 25
The burner locks out because no flame was present at the end of the safety time.
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
- 25
- Name
- Loc.c 25 / Err.c 25
- Controller
- Weishaupt W-FM 200 Combustion Manager
- Type
- Ignition lockout
- 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 4 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 Weishaupt W-FM 200 Combustion Manager code 25 mean?
The burner locks out because no flame was present at the end of the safety time.
Is Weishaupt W-FM 200 Combustion Manager code 25 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 Weishaupt W-FM 200 Combustion Manager code 25?
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 Weishaupt W-FM 200 Combustion Manager codes
23 · Loc.c 23 / Err.c 2324 · Loc.c 24 / Err.c 2426 · Loc.c 26 / Err.c 2627 · Loc.c 27 / Err.c 2728 · Loc.c 28 / Err.c 2829 · Loc.c 29 / Err.c 292A · Loc.c 2A / Err.c 2A2B · Loc.c 2B / Err.c 2B
All 16 Weishaupt W-FM 200 Combustion Manager codes · Every fault code