Fireye MicroM Flame Safeguard (MC-5000)
Fireye MicroM Flame Safeguard (MC-5000) code 55: Lockout Check Programmer
Improper voltage timing or an internal diagnostic failure occurred, locking out the burner control system.
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
- 55
- Name
- Lockout Check Programmer
- Controller
- Fireye MicroM Flame Safeguard (MC-5000)
- Type
- Internal fault
- 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
Subscribers get:
- What to do next, in plain words
- What the manual says to do, and the page it is on
- 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 Fireye MicroM Flame Safeguard (MC-5000) code 55 mean?
Improper voltage timing or an internal diagnostic failure occurred, locking out the burner control system.
Is Fireye MicroM Flame Safeguard (MC-5000) code 55 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 Fireye MicroM Flame Safeguard (MC-5000) code 55?
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 Fireye MicroM Flame Safeguard (MC-5000) codes
24 · Lockout Chassis Opto37 · Lockout Flame Fail - AUTO39 · Lockout Main Valve54 · Lockout Check Chassis56 · Lockout Check Amplifier58 · Lockout Amplifier Auto Check Fail59 · Lockout Check BLOWN FUSE76 · Lockout Check ScannerN/A · System Error
All 18 Fireye MicroM Flame Safeguard (MC-5000) codes · Every fault code