MSA ULTIMA X5000 Gas Monitor
MSA ULTIMA X5000 Gas Monitor code LOC
The gas monitor measured a combustible sensor over range condition, causing the instrument to alarm.
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
- LOC
- Name
- LOC
- Controller
- MSA ULTIMA X5000 Gas Monitor
- Type
- Gas alarm
- What it does
- Critical alarm
- 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 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 MSA ULTIMA X5000 Gas Monitor code LOC mean?
The gas monitor measured a combustible sensor over range condition, causing the instrument to alarm.
Is MSA ULTIMA X5000 Gas Monitor code LOC 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 MSA ULTIMA X5000 Gas Monitor code LOC?
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 MSA ULTIMA X5000 Gas Monitor codes
ACT Fault · ACT FaultLamp Fault · Lamp FaultOver Range · Over RangeRelay Fault · Relay FaultEEPROM Fault · EEPROM FaultChannel Error · Channel Error
All 39 MSA ULTIMA X5000 Gas Monitor codes · Every fault code