Marine technical services

Marine automation, controls & electrical services for vessels in the UAE & beyond.

GNM-ARM provides hands-on technical services for shipboard automation, control, pneumatic and electrical systems across the UAE, the wider GCC and major maritime hubs worldwide.

Shipowners, fleet managers and vessel operators rely on our engineers for troubleshooting, repairs, retrofit support and genuine spare parts — onboard, alongside or at anchorage.

  • 9+Years in operation
  • 250+Vessels supported
  • 12+Countries served
  • ISO9001 · 14001 · 45001 certified
  • 24/7Emergency support

Services overview

Nine specialist services. One engineering team.

Jump straight to the service your vessel needs — each section below explains what we cover, the systems we handle and how we deliver the work.

Ballast Water Treatment Systems

Commissioning support, troubleshooting, calibration and genuine spare parts for UV and electrochlorination ballast water treatment systems from major makers — supporting reliable BWMS operation and vessel compliance with the BWM Convention D-2 requirements.

Explore ballast water treatment systems services →

Exhaust Gas Cleaning Systems

Specialist support for open-loop, closed-loop and hybrid scrubber systems — commissioning, sensor calibration, troubleshooting and spare parts to keep your vessel SOx compliant.

Explore exhaust gas cleaning systems services →

Pneumatic & Engine Control

Diagnosis, repair and overhaul of pneumatic maneuvering systems and engine control systems — from control air circuits and valves to governors and engine control units.

Explore pneumatic & engine control services →

Burner Control Systems

Inspection, repair and maintenance of burner control systems for boilers, inert gas generators (IGG) and incinerators — from flame safeguard controls to full combustion management.

Explore burner control systems services →

Tank Level Monitoring

Implementation and troubleshooting of radar, pressure and electro-pneumatic tank level monitoring systems — accurate readings for ballast, cargo and service tanks.

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Alarm Monitoring Systems

Implementation and troubleshooting of alarm monitoring systems — sensor networks, signal conditioning, I/O modules and integration with engine room and bridge systems.

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Electronic Engine Troubleshooting

Specialist troubleshooting for electronically controlled engines — control loop diagnosis, control unit faults, and fuel-injection, exhaust-valve actuation and cylinder-performance deviation diagnosis.

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Instrument Calibration

Calibration and servicing of marine instrumentation — pressure, temperature, level and flow — with traceable standards, clear documentation and certificates.

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Service 01 / 09

Ballast Water Treatment System (BWTS) Services

What this service covers

We provide expert services for Ballast Water Treatment Systems (BWTS) with strong expertise in BWTS troubleshooting, repairs, and end-to-end system restoration, led by experienced marine chief engineers and automation specialists. We support vessels in resolving complex BWTS faults across major technologies including electrochlorination/electrolysis-based active-substance systems, UV, chemical dosing, and in-tank treatment arrangements.

Authorized Headway BWTS Service Partner(view authorization)

We have hands-on experience with leading ballast water treatment systems including Sunrui, Erma First, Techcross, Echoclor, DESMI, Panasia, Alfa Laval, and Wärtsilä.

Typical systems & equipment handled

  • Electrochlorination / electrolysis-based active-substance systems and TRO sensors
  • UV reactors and lamp assemblies
  • Chemical dosing systems and neutralization units
  • In-tank treatment arrangements, circulation systems and associated dosing equipment
  • Automatic self-cleaning filters
  • BWTS control panels and PLCs
  • Flow meters, pressure transmitters and sampling lines
  • Headway and other major makers

Typical problems solved

  • D-2 discharge non-conformance and test failures
  • TRO / oxidant analyzer drift and faults on active-substance systems where fitted
  • UV lamp failures and intensity alarms (UV systems)
  • Chemical dosing pump failures and neutralization issues
  • In-tank system circulation and mixing problems
  • Filter clogging and high differential pressure
  • Control system faults and false alarms
  • BWMS event logging, data recording and report-generation faults

How GNM-ARM delivers the work

As an authorized technical partner of Headway Technology Group, our engineers bring maker-specific training and genuine spare parts to every attendance. Work is executed alongside or at anchorage, concluded with functional testing and a documented service report for your records and inspections.

Ballast Water Treatment System (BWTS) Services — GNM-ARM marine engineering support

Service 02 / 09

Exhaust Gas Cleaning System (EGCS) Services

What this service covers

We provide expert services on Exhaust Gas Cleaning Systems (EGCS) installed on marine vessels. Our comprehensive services include system inspection, fault diagnosis, commissioning support, preventive maintenance, and performance testing to ensure reliable operation and compliance with international maritime environmental regulations.

Typical systems & equipment handled

  • Open-loop, closed-loop and hybrid scrubber systems
  • Scrubber towers, demisters and mist eliminators
  • Washwater and dosing pumps
  • pH, PAH, turbidity and temperature monitoring
  • EGCS monitoring, data-recording and reporting systems
  • SO₂ / CO₂ exhaust-gas analyzers and emission-ratio monitoring
  • EGCS control cabinets and PLCs
  • Washwater discharge monitoring systems
  • Alkali dosing and neutralization systems where fitted, particularly on closed-loop/hybrid arrangements

Typical problems solved

  • pH, PAH, turbidity and temperature sensor failures and drift
  • SO₂ / CO₂ gas-analyzer faults and calibration issues
  • Washwater pump failures and dosing system malfunctions
  • Control system alarms, trips and communication errors
  • Discharge compliance monitoring errors and false readings
  • Scrubber scaling, corrosion, fouling and abnormal exhaust-gas differential pressure/backpressure
  • Demister and mist eliminator fouling
  • Alkali dosing and neutralization system failures

How GNM-ARM delivers the work

We begin every engagement with a detailed problem study before attendance, supported by our strong remote troubleshooting capabilities. Our team conducts thorough root cause analysis with full involvement to deliver permanent, long-term solutions that reduce repeated attendance. This approach minimizes your vessel downtime and operating expense while ensuring reliable EGCS operation. Our expert remote troubleshooting team is dedicated to solving any challenges with hard work and sincerity, committed to reducing frequent attendance and delivering reliable long-term solutions for your fleet.

Exhaust Gas Cleaning System (EGCS) Services — GNM-ARM marine engineering support

Service 03 / 09

Pneumatic & Engine Control System Services

What this service covers

We specialize in the expert overhaul, troubleshooting, and maintenance of pneumatic maneuvering and engine control systems for ships of all types. With our team of highly skilled ex-marine engineers, we bring decades of hands-on knowledge and experience to every project, ensuring your vessels operate safely, reliably, and efficiently.

Typical systems & equipment handled

  • Pneumatic maneuvering and reversing systems
  • Control air distributors, solenoid valves and positioners
  • Engine control units and speed governors
  • Starting air systems and safety interlocks
  • Telegraph and remote control systems
  • Deck machinery pneumatic controls
  • Emergency shutdown and safety systems
  • Control air compressors and dryers

Typical problems solved

  • Sluggish or failed maneuvering response
  • Control air leaks and pressure fluctuations
  • Valve stiction and worn actuators
  • Governor hunting and speed instability
  • Intermittent start/stop failures
  • Control loop instability after component replacement
  • Emergency shutdown system malfunctions
  • Control air quality issues (moisture, oil contamination)

How GNM-ARM delivers the work

We provide full overhauls and health checks of pneumatic maneuvering systems, along with comprehensive engine control system diagnostics and troubleshooting. Our services include component replacement and system optimization to restore peak performance. We offer reliable emergency testing and immediate repairs to minimize your vessel downtime. With our systematic approach using schematics and precise measurement, we ensure repairs are completed with quality workmanship, function-tested — including maneuvering trials where operationally permitted and appropriate to the repair scope — and documented with clear findings so your crew knows exactly what was done and why.

Pneumatic & Engine Control System Services — GNM-ARM marine engineering support

Service 04 / 09

Burner Control System Services

What this service covers

Our team delivers comprehensive inspection, troubleshooting, repair, and maintenance of burner control systems used in marine boilers, Inert Gas Generators (IGG), and incinerators. Our expertise encompasses burner management system checks, combustion control tuning, safety interlock verification, and control panel diagnostics to ensure stable and efficient combustion performance.

Typical systems & equipment handled

  • Burner management and flame safeguard systems
  • Flame detectors and scanners (UV / IR)
  • Ignition transformers and electrodes
  • Fuel oil valves, pumps and atomizers
  • Combustion air fans and dampers
  • Boiler, IGG and incinerator control panels
  • Actuators and control valves
  • Fuel-air ratio control systems

Typical problems solved

  • Flame failure trips and lockouts
  • Ignition faults and weak spark
  • Flame scanner degradation and false trips
  • Fuel valve leakage and poor atomization
  • Combustion instability and soot build-up
  • Safety interlock and limit switch failures
  • Actuator and valve malfunctions
  • Fuel-air ratio control issues

How GNM-ARM delivers the work

Our engineers conduct flame monitoring verification, actuator and valve testing, sensor calibration, and fuel-air ratio adjustments to maintain safe operation and optimal efficiency of your combustion equipment. We perform regular testing of alarms, trips, and control loops to ensure proper system response and operational reliability. Safety comes first: every burner attendance includes interlock verification and controlled firing tests before handover. You receive a tested burner with function-tested safety interlocks and calibrated instruments where applicable, plus a service report suitable for class and flag inspection records.

Burner Control System Services — GNM-ARM marine engineering support

Service 05 / 09

Tank Level Monitoring System Services

What this service covers

Our tank level monitoring service encompasses comprehensive fault finding, repairs, and calibration of radar, float, and capacitance-based level sensors installed across your cargo, ballast, fuel, and service tanks. Accurate liquid level measurement is critical for safe and efficient vessel operation — and that is exactly what we deliver.

Typical systems & equipment handled

  • Radar and guided-wave level gauges
  • Float-type level sensors
  • Capacitance-based level sensors
  • Pressure and hydrostatic level transmitters
  • Electro-pneumatic / bubbler-type tank gauging systems and purge-air control units
  • 4–20 mA signal loops and interface units
  • Independent high-level / overfill alarm systems, tested separately from the primary gauging system where required by the approved vessel arrangement
  • Signal converters and display cabinets
  • Tank gauging integration with cargo control systems

Typical problems solved

  • Erratic or frozen level readings
  • Sensor drift and zero offset errors
  • False high-level and overfill alarms
  • 4–20 mA signal loop and wiring faults
  • Grounding issues and signal lag
  • Communication faults between sensors and displays
  • Moisture damage in deck-mounted transmitters
  • Calibration mismatches against manual sounding

How GNM-ARM delivers the work

Float-type and capacitance sensors are cleaned, tested, and recalibrated for consistent performance under harsh marine conditions. Our engineers verify 4–20 mA signal loops, sensor wiring, and interface units connected to your ship's cargo control system — conducting full operational checks from sensor to control room display, identifying and resolving lag, faulty readings, and grounding issues. All work is carried out in accordance with applicable maker procedures, vessel documentation, class requirements and statutory requirements relevant to the particular tank and vessel type, leaving you with accurate, reliable tank level data your crew can trust during cargo and ballast operations.

Tank Level Monitoring System Services — GNM-ARM marine engineering support

Service 06 / 09

Power Management & Switchboard Protection Services

What this service covers

Our expertise centers on generator and power-system optimization — load-sharing control, governor response, speed/load references and actuator/linkage performance are verified and optimized in accordance with maker settings. We troubleshoot non-essential load shedding/preferential-trip logic used to disconnect predefined non-critical loads when available generation becomes insufficient or abnormal power-system conditions occur, keeping your vessel's electrical plant stable and protected.

Typical systems & equipment handled

  • Power management system (PMS) controllers
  • Load-sharing control and synchronizer modules
  • Governor, speed/load reference and actuator control systems
  • Non-essential load shedding (preferential trip) systems
  • Load-dependent generator start/stop and blackout recovery
  • Automatic voltage regulators (AVR)
  • Generator and feeder protection relays
  • Air circuit breakers and trip units

Typical problems solved

  • Load sharing instability between generators
  • Governor response and actuator/linkage performance issues
  • Blackouts and preferential trip events
  • Nuisance or failed protection relay trips
  • Synchronization failures when paralleling
  • Breaker trip unit malfunction
  • AVR hunting and voltage fluctuations
  • Excessive fuel consumption from poor generator tuning

How GNM-ARM delivers the work

Every optimization is tailored to your vessel type, operational profile, and owner objectives. Our engineers fine-tune load-sharing control, governor response and speed/load references — verifying mechanical fuel linkage/rack settings only where applicable and in accordance with engine-maker procedures. Installed relay and trip-unit settings are verified against your vessel's approved protection/selectivity study, relay setting schedule, maker documentation and applicable class requirements — tested by secondary injection, with primary injection where required and practicable, and generator paralleling proven under real load. Any setting changes are made only within the approved technical scope.

Power Management & Switchboard Protection Services — GNM-ARM marine engineering support

Service 07 / 09

Alarm Monitoring System (AMS) Services

What this service covers

Our technicians excel in troubleshooting, repairing, and retrofitting Alarm Monitoring Systems onboard ships and industrial setups. These systems play a vital role in ensuring the safe and efficient operation of your critical machinery — Main & Auxiliary Engines, Boilers, Oily Water Separators, and Oil Purifiers.

Typical systems & equipment handled

  • AMS consoles and operator stations
  • Analog and digital I/O modules
  • Temperature, pressure and level sensors
  • Sensor loops and signal conditioning circuits
  • Extension alarm panels (bridge, cabins, mess)
  • Serial and Ethernet communication interfaces
  • Main & Auxiliary Engine monitoring loops
  • Boiler, Oily Water Separator and Oil Purifier alarm integration

Typical problems solved

  • Failed sensors and dead alarm channels
  • Sensor loop faults and signal degradation
  • Control logic errors and configuration loss
  • Communication link failures and bus errors
  • False, stuck or chattering alarms
  • I/O module and power supply failures
  • Obsolete panels requiring replacement
  • Faulty modules requiring repair or upgrade

How GNM-ARM delivers the work

Whether it's an obsolete panel that needs replacement or a faulty module requiring repair, our approach centers on accurate diagnostics and tailored retrofit solutions. We identify faults in sensor loops, control logic, and communication links — followed by precise rectification or system upgrades to restore full functionality. Every affected alarm point is function-tested to support continued compliance with the vessel's applicable class notation and unattended-machinery alarm requirements.

Alarm Monitoring System (AMS) Services — GNM-ARM marine engineering support

Service 08 / 09

Electronic Engine Troubleshooting Services

What this service covers

Our engineers bring specialized expertise in Electronic Engine Troubleshooting for MAN B&W / Everllence B&W ME-series electronically controlled engines installed on modern vessels. These systems control fuel injection, exhaust-valve actuation, cylinder lubrication, and engine protection — making accurate diagnosis essential for safe and efficient engine performance and reliable vessel operations.

Typical systems & equipment handled

  • Cylinder Control Units (CCU) and Engine Control Units (ECU), as applicable
  • Main Operating Panel (MOP), Engine Control System (ECS) hardware and MPC-based control modules
  • Hydraulic Power Supply (HPS) and Hydraulic Cylinder Units (HCU)
  • Fuel oil pressure boosters and fuel-injection actuation (ELFI / FIVA, as applicable)
  • Exhaust-valve hydraulic actuation and control (ELVA / FIVA, as applicable)
  • Starting Valve Control
  • Alpha Cylinder Lubrication Control
  • Crank angle and TDC sensor systems

Typical problems solved

  • Misfiring and cylinder cut-outs
  • Exhaust temperature deviations between units
  • CCU fault codes and redundancy alarms
  • Fuel-booster pressure and injection timing faults
  • Hydraulic/servo-oil pressure instability in the HPS/HCU system
  • Exhaust-valve actuation faults (ELVA / FIVA)
  • Crank angle sensor and pick-up failures
  • Alpha Lubricator control and dosing faults
  • Maneuvering and slow-down alarms during critical operations

How GNM-ARM delivers the work

Drawing on decades of seagoing engine-room experience, our engineers combine maker diagnostic tools with practical engineering judgement — covering fault diagnosis, system calibration, repairs, and retrofit of electronic control components. We isolate the true cause rather than swapping parts blindly, restore engine performance, and advise your crew on preventing recurrence.

Electronic Engine Troubleshooting Services — GNM-ARM marine engineering support

Service 09 / 09

Marine Instrument Calibration Services

What this service covers

At our state-of-the-art facility, we calibrate a comprehensive range of marine instrumentation — Tank Level Gauges, 15 ppm bilge alarms, ODME/ODMCS, Gas Sampling systems, Fixed Gas Detection systems, Pressure Transmitters and Controllers, among many others. Every instrument is handled by certified calibration engineers who adhere strictly to regulatory guidelines, ensuring accuracy and compliance with international and regional regulations.

Typical systems & equipment handled

  • Tank Level Gauges and transmitters
  • 15 ppm bilge alarms / oil content monitors for oily-water filtering equipment
  • Oil Discharge Monitoring Equipment / Oil Discharge Monitoring and Control Systems (ODME/ODMCS) for oil tankers
  • Gas Sampling and detection systems
  • Fixed Gas Detection systems
  • Pressure gauges, transmitters and controllers
  • Temperature sensors, gauges and transmitters
  • Flow meters and differential pressure cells
  • Control valve positioners and I/P converters
  • Test benches and portable calibrators

Typical problems solved

  • Instrument drift and out-of-tolerance readings
  • Failed survey or vetting calibration checks
  • Missing or expired calibration certificates
  • Inaccurate tank level gauge readings
  • 15 ppm bilge alarm calibration failures
  • ODME/ODMCS calibration and sampling-system faults
  • Gas detection system false alarms or failures
  • Pressure transmitter drift and inaccuracy
  • Inconsistent readings between duplicate instruments
  • Control errors caused by inaccurate measurement

How GNM-ARM delivers the work

Reliability is crucial when it comes to your vessel's operations at sea — which is why we employ only certified calibration engineers who are strict about adhering to regulatory guidelines. Calibrations are performed onboard or in our workshop against traceable reference standards, with as-found and as-left values documented. Calibration and service documentation is provided as applicable to the instrument, maker requirements and GNM-ARM's authorization scope — maker/authorized calibration requirements are followed where required by the applicable IMO, flag or class regime.

Marine Instrument Calibration Services — GNM-ARM marine engineering support

Technical support

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How we work

From technical request to job completion, and beyond.

  1. Technical request & assessment

    You reach us via the troubleshooting form, WhatsApp, email or our 24/7 emergency support. Our engineers review the fault description, equipment details and vessel schedule, then respond with initial technical guidance.

  2. Technical review & quotation

    We confirm scope, required attendance window and any parts needed, and issue a clear, itemized quotation — no hidden charges, no surprises.

  3. Planning & mobilization

    Attendance is planned around your vessel's ETA and sailing time. Engineers, tools, calibrated instruments and spare parts are mobilized to the port or anchorage on schedule.

  4. Onboard execution

    Our engineers execute the work under certified ISO 9001 / 14001 / 45001 processes, safety first, with quality workmanship and minimal disruption to vessel operations.

  5. Testing, reporting & handover

    Systems are function-tested under real operating conditions where operationally permitted and appropriate to the repair scope. You receive a complete service report covering findings, work done, parts replaced and recommendations.

  6. After-support

    We stay reachable after the job. Follow-up technical advice, warranty support on parts and workmanship, and spare parts sourcing for anything your vessel needs next.

Our commitment, on every job.

Quality workmanship

Repairs done right the first time, to maker standards, by experienced marine engineers.

Safety first

ISO 45001-certified safety processes protect our engineers, your crew and your vessel.

Timely execution

We plan around your port stay and deliver within the attendance window — no off-hire delays.

Transparent communication

Clear quotations, honest findings and complete reporting at every stage of the job.

Service coverage

Where our engineers support your vessels.

Headquartered in Dubai and covering all UAE ports and anchorages — Jebel Ali, Port Rashid, Dubai Maritime City, Khalifa Port, Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah, Khor Fakkan and Fujairah — with attendance across the wider GCC, Oman, India, Sri Lanka, Bangladesh, China, Singapore, South Korea, Japan, Greece, Spain, Turkey, Panama, South Africa and Djibouti through our regional network.

GNM-ARM service coverage world mapWireframe world map marking GNM-ARM service coverage: all UAE ports (headquarters), Oman, India, China, Singapore, Korea, Japan, Greece, Spain, Turkey, Panama, South Africa and Djibouti.Oman & GCCIndia & SAChinaSingaporeKoreaJapanGreeceSpainTurkeyPanamaSouth AfricaDjiboutiUAE (HQ)
  • United Arab Emirates (Headquarters) — all major ports and anchorages: Jebel Ali, Port Rashid, Dubai Maritime City, Khalifa Port, Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah, Khor Fakkan and Fujairah
  • Oman & wider GCC
  • India
  • China
  • Singapore
  • South Korea
  • Japan
  • Greece
  • Spain
  • Turkey
  • Panama
  • South Africa
  • Djibouti

Vessels and platforms we support.

Our engineers support commercial vessels, offshore support vessels, mobile offshore units and offshore installations — many of them DP-equipped.

Vessels and offshore assets supported by GNM-ARM, grouped by category
CategoryVessels supported
Commercial & Cargo VesselsBulk carriersOil & chemical tankersContainer ships
Offshore Support & Specialized Vessels (OSVs)Platform Supply Vessels (PSVs)Anchor Handling Tug Supply (AHTS) vesselsDiving Support Vessels (DSVs)Construction/installation vesselsTugs
Offshore Energy InfrastructureJack-up drilling unitsSemi-submersible drilling unitsOffshore production/platform facilities

Vessel due in port?

Get GNM-ARM engineers onboard before she sails.

Send your vessel details now and our technical team will confirm attendance, parts and pricing — fast, transparent and around your schedule.