Honeywell S8610U Intermittent Pilot Ignition
Honeywell S8610U Intermittent Pilot Ignition Flash Fast
The control is performing an internal startup evaluation, temporarily delaying the burner from firing.
- Code
- Flash Fast
- Name
- Not named in the manual
- Controller
- Honeywell S8610U Intermittent Pilot Ignition
- Type
- Power supply
- 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 November 4, 2026
How to fix it
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- What to do next, in plain words
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Questions about this code
What does Honeywell S8610U Intermittent Pilot Ignition Flash Fast mean?
The control is performing an internal startup evaluation, temporarily delaying the burner from firing.
Is Honeywell S8610U Intermittent Pilot Ignition Flash Fast dangerous?
It is graded green: in a working tech's wheelhouse with standard tools and low risk.
How do I fix Honeywell S8610U Intermittent Pilot Ignition Flash Fast?
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 Honeywell S8610U Intermittent Pilot Ignition codes
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