AMEREX VEHICLE FIRE SUPPRESSION SYSTEM TROUBLESHOOTING INSTRUCTIONS
Troubleshooting guidance for Amerex vehicle fire suppression system faults, inspection concerns, pressure issues, discharge indicators, and maintenance questions.
- Home
- Services
- Troubleshooting
- Amerex
AMEREX VEHICLE FIRE SUPPRESSION SYSTEM TROUBLESHOOTING INSTRUCTIONS
Troubleshooting guidance for Amerex vehicle fire suppression system faults, inspection concerns, pressure issues, discharge indicators, and maintenance questions.
- Home
- Services
- Troubleshooting
- Amerex
Amerex Vehicle Fire Suppression Systems
Amerex vehicle fire suppression systems are designed to help protect heavy equipment, mobile machinery, operators, and jobsite productivity in high-risk environments. These systems are commonly used on construction equipment, mining vehicles, forestry equipment, landfill machines, waste handling equipment, and other on-road or off-road vehicles where heat, debris, hydraulic oil, fuel, electrical components, and combustible materials can create fire risk.
This troubleshooting page is designed to help owners, operators, and maintenance teams identify what they are seeing, understand what it may mean, and know when to contact GreasePoint for service.
Important: This guide is not a replacement for the Amerex manual, site safety procedures, NFPA requirements, or certified service. Never modify, relocate, recharge, disassemble, bypass, or repair an Amerex fire suppression system unless you are trained and authorized to do so. If a fault, alarm, abnormal condition, missing component, damage, discharge residue, pressure concern, or system issue is observed, contact maintenance personnel or an authorized Amerex certified distributor before operating the equipment.
Which Issue Are You Experiencing?
Select the issue below to jump directly to the section that explains what it means, what to check, and what to do next.
No Green “OK” Light or Display Panel Fault
What does it mean?
On Amerex systems equipped with an electronic display panel, the green “OK” status LED helps indicate normal system status. If the green “OK” light is not illuminated, or if the panel shows a fault, alarm, trouble indicator, or abnormal condition, the system should be checked before the equipment is operated.
A display panel issue may be related to the system status, electrical monitoring, detection circuit, control panel, actuation circuit, pressure condition, or another system concern that requires trained review.
What should I check?
Before operating the equipment, perform a visual check only:
- Confirm whether the electronic display panel is powered and visible.
- Check whether the green “OK” status LED is illuminated.
- Look for any alarm, fault, trouble indicator, or abnormal condition.
- Check for visible damage to accessible system components.
- Check for any signs of system discharge, including dry chemical residue.
- Review whether the equipment recently had repairs, cleaning, welding, electrical work, or modifications.
- Record the equipment ID, date, shift, operator, and issue observed.
What should I do next?
Do not bypass the display panel, disconnect components, or attempt to reset or repair the system unless you are trained and authorized. If the panel does not show normal system status, contact maintenance personnel or GreasePoint for Amerex fire suppression service before returning the equipment to operation.
Pressure Gauge Not in the Green
What does it mean?
The agent cylinder pressure gauge should indicate the proper operating range. On applicable Amerex systems, the gauge pointer should be in the green area. If the gauge is outside the green range, damaged, unreadable, bent, leaking, or otherwise abnormal, the system may not be ready for service.
If the system is equipped with a nitrogen cylinder pressure gauge, that gauge should also be checked as part of routine owner/operator inspection.
What should I check?
Before operating the equipment, visually inspect the system without adjusting or removing components:
- Look at the agent cylinder pressure gauge.
- Confirm whether the gauge pointer is in the green operating range.
- Check the nitrogen cylinder pressure gauge if the system is equipped with one.
- Look for damaged, unreadable, bent, or broken gauges.
- Look for signs of corrosion, abrasion, dents, loose hardware, or physical damage.
- Check whether the maintenance tag is present and current.
- Record the concern on the inspection checklist.
What should I do next?
A pressure concern should be reviewed by an authorized Amerex certified distributor. Do not operate equipment with a pressure concern until the issue has been reviewed according to your site procedures. Do not attempt to pressurize, recharge, vent, or disassemble cylinders.
Missing Dust Cap, Nozzle Cap, or Instruction Label
What does it mean?
Dust caps, nozzle caps, and instruction labels are important visible inspection points. Protective caps help keep nozzle outlets clear of dirt, grease, debris, and contamination. Labels help operators understand what to do during a fire event.
If nozzle caps are missing, nozzle outlets are blocked, hazard areas are no longer properly aimed at, or “In Case of Fire” and “Caution” labels are damaged or illegible, the system needs attention.
What should I check?
During a visual inspection:
- Confirm that the dust cap is installed on the agent cylinder safety rupture disc.
- Check that protective caps are in place on nozzle tips.
- Make sure nozzle outlets are unobstructed.
- Confirm that nozzles are aimed at the intended hazard areas.
- Check that “In Case of Fire” instruction labels are intact, clean, and legible.
- Check that “Caution” labels are intact, clean, and legible.
- Look for excessive grease, oil, dry vegetation, coal dust, paper, wood, or other combustible buildup near protected areas.
What should I do next?
Do not move, aim, remove, or replace nozzles unless you are trained and authorized. If caps are missing, nozzles are blocked, or labels are damaged, document the issue and contact GreasePoint for service support.
Dry Chemical Residue or Possible System Discharge
What does it mean?
Dry chemical residue on the vehicle, around protected areas, at nozzle outlets, near the agent cylinder valve discharge port, or on the ground may indicate that the system has discharged or partially discharged.
A discharged system must be inspected, cleaned, recharged, and serviced before the equipment is returned to operation. The source of the fire or discharge condition should also be identified and corrected.
What should I check?
If residue is observed:
- Bring the equipment to a safe condition according to site procedures.
- Do not restart equipment after a fire or possible discharge event until authorized.
- Look for dry chemical residue on the machine or ground.
- Look for residue near nozzles, cylinders, valve areas, and protected hazards.
- Check for visible damage caused by fire, heat, impact, or debris.
- Record what was observed and when it was discovered.
- Notify maintenance personnel immediately.
What should I do next?
If a system discharged, do not return the equipment to service until the fire suppression system has been serviced by an Amerex certified distributor and the fire source has been located and corrected. Contact GreasePoint for inspection, recharge, and corrective service.
Damaged, Loose, or Moved Components
What does it mean?
Amerex vehicle fire suppression systems are designed around specific hazard areas on the equipment. Components should remain in their original locations and should be securely fastened. Damage, missing parts, loose brackets, substituted components, blocked actuators, chafed hoses, corrosion, or moved components can affect system performance.
What should I check?
During inspection, look for:
- Components that are missing, loose, damaged, or no longer securely fastened.
- Mechanical actuation devices blocked by tools, debris, clutter, guards, or vehicle modifications.
- Hoses with wear, chafing, abrasion, cracking, or damage.
- Cylinders with corrosion, dents, abrasion, or physical damage.
- Nozzles that are blocked, bent, damaged, or no longer aimed correctly.
- Hardware that appears loose, missing, altered, or substituted.
- System components impacted by recent repairs, cleaning, welding, or equipment modifications.
What should I do next?
Never modify the fire suppression system, relocate components, use substitute parts, or make system adjustments without an authorized Amerex certified distributor. Document the concern and contact GreasePoint before returning the equipment to service.
Vehicle Modification or Hazard Change
What does it mean?
Fire suppression systems are designed around the equipment’s hazard analysis. If the machine changes, the protected hazards may change too. New guards, exhaust work, hydraulic modifications, fuel system changes, body modifications, electrical changes, cleaning procedures, attachment changes, or a new operating environment can create a new risk profile.
What should I check?
Review whether the equipment has recently had:
- Hydraulic repairs or component replacement.
- Engine, exhaust, turbo, or fuel system work.
- Welding, fabrication, or guarding changes.
- Electrical work or battery area modifications.
- New attachments or changes in machine use.
- Cleaning procedure changes.
- Operation in a new environment, such as forestry, landfill, mining, demolition, waste handling, or high-debris applications.
What should I do next?
Notify an Amerex certified distributor of any vehicle modifications so potential hazard changes can be identified and protected. GreasePoint can review the equipment, determine whether the original hazard analysis still applies, and recommend any needed system adjustments.
Maintenance Tag Is Missing or Out of Date
What does it mean?
The maintenance tag or certificate should be in place and up to date. It helps document whether the system has received the required inspections and maintenance. A missing or outdated tag may indicate that the system is overdue for certified service.
Amerex vehicle fire suppression systems should be visually inspected by the owner/operator on a routine basis and maintained and tested every six months by an Amerex certified distributor.
What should I check?
- Confirm that the maintenance tag or certificate is present.
- Check whether the inspection date is current.
- Confirm whether inspection initials or service documentation are recorded as required.
- Review whether semi-annual service is due.
- Confirm whether any prior issues were documented and corrected.
- Keep completed inspection and maintenance records according to site procedures.
What should I do next?
If the maintenance tag is missing, out of date, or unclear, schedule Amerex fire suppression service with GreasePoint. If your equipment works in a high-risk environment, harsh operating conditions may require more frequent review.
None of the Above What You’re Experiencing?
If you are unsure what you are seeing, do not guess. Amerex fire suppression systems protect people, equipment, and operations in high-risk environments. A small issue, such as a missing nozzle cap, blocked actuator, changed hazard area, abnormal gauge reading, or damaged component, can become a serious problem if ignored.
Download the Amerex Vehicle Fire Suppression System Guide to support daily and monthly inspections, document issues, and prepare for certified service.
If you would rather talk to a person than troubleshoot from a document, GreasePoint is here to help.
English