Satronic / Honeywell DKO 970/972 Oil Burner Control
Satronic / Honeywell DKO 970/972 Oil Burner Control 1 short + 1 long flash: Flash-Code: 1 short then 1 long pulse (internal fuse defect)
The oil burner control locks out due to an internal fuse or control box defect.
- Code
- 1 short + 1 long flash
- Name
- Flash-Code: 1 short then 1 long pulse (internal fuse defect)
- Controller
- Satronic / Honeywell DKO 970/972 Oil Burner Control
- Type
- General fault
- What it does
- Fault: the equipment trips and stops
- Risk
- YELLOW Booth plays by its own rules
- 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
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does Satronic / Honeywell DKO 970/972 Oil Burner Control 1 short + 1 long flash mean?
The oil burner control locks out due to an internal fuse or control box defect.
Is Satronic / Honeywell DKO 970/972 Oil Burner Control 1 short + 1 long flash dangerous?
It is graded yellow: not hard, but a booth does it differently than the gear most techs know, so follow the checks in order.
How do I fix Satronic / Honeywell DKO 970/972 Oil Burner Control 1 short + 1 long flash?
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 DKO 970/972 Oil Burner Control codes
1 short + 2 long flashes · Flash-Code: 1 short then 2 long pulses (1 short + 4 long flashes · Flash-Code: 1 short then 4 long pulses2 short + 3 long flashes · Flash-Code: 2 short then 3 long pulses (2 short + 8 long flashes · Flash-Code: 2 short then 8 long pulses (
All 5 Satronic / Honeywell DKO 970/972 Oil Burner Control codes · Every fault code