White-Rodgers 50E47-843 Hot Surface Ignition
White-Rodgers 50E47-843 Hot Surface Ignition Red Rapid Flash
A flame was sensed when none was expected, forcing the control into a lockout state.
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
- Red Rapid Flash
- Name
- Not named in the manual
- Controller
- White-Rodgers 50E47-843 Hot Surface Ignition
- Type
- Flame failure
- 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 November 4, 2026
How to fix it
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- What to do next, in plain words
- What the manual says to do, and the page it is on
- 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 White-Rodgers 50E47-843 Hot Surface Ignition Red Rapid Flash mean?
A flame was sensed when none was expected, forcing the control into a lockout state.
Is White-Rodgers 50E47-843 Hot Surface Ignition Red Rapid Flash 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 White-Rodgers 50E47-843 Hot Surface Ignition Red Rapid 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.
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