Kromschroder BCU 46x / 480 Burner Control Unit
Kromschroder BCU 46x / 480 Burner Control Unit code Ot
The ambient temperature is too high for the control unit, stopping operation until it cools down.
- Code
- Ot
- Name
- Ot
- Controller
- Kromschroder BCU 46x / 480 Burner Control Unit
- Type
- Sensor fault
- What it does
- Warning: the equipment keeps running and flags a problem
- Risk
- GREEN In your wheelhouse
- Reset
- Clears on its own when the condition goes away
- 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 2 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 Kromschroder BCU 46x / 480 Burner Control Unit code Ot mean?
The ambient temperature is too high for the control unit, stopping operation until it cools down.
Is Kromschroder BCU 46x / 480 Burner Control Unit code Ot dangerous?
It is graded green: in a working tech's wheelhouse with standard tools and low risk.
How do I fix Kromschroder BCU 46x / 480 Burner Control Unit code Ot?
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 Kromschroder BCU 46x / 480 Burner Control Unit codes
51 · Blinking 5153 · Blinking 53Ut · UtE 02 · Blinking E 02E 04 · Blinking E 04E 05 · Blinking E 05E 08 · Blinking E 08E 11 · Blinking E 11
All 21 Kromschroder BCU 46x / 480 Burner Control Unit codes · Every fault code