Skip to main contentSkip to navigationSkip to contactAccessibility (Alt+A)

Keyboard Shortcuts

  • Alt + A: Open accessibility settings
  • Tab: Navigate to next element
  • Shift + Tab: Navigate to previous element
  • Enter or Space: Activate buttons and links
  • Escape: Close dialogs and menus
  • Arrow keys: Navigate within menus and sliders
  • Home: Go to beginning of list
  • End: Go to end of list
EmersonEIMS — Reliable Power. Without Limits.
HOMEABOUT
CONTACT
Get Quote

B2BEmersonEIMS serves commercial, industrial, healthcare, telecom, hospitality, government & contractor clients.• Engineering-led • SLA-backed • Documented commissioning

Talk to an engineerWhatsApp+254 768 860 665

Services Directory

View all services →

Power & Generators

  • Cummins Generators (3-yr warranty)
  • Generator Repairs & Maintenance
  • ATS / Changeovers
  • Generator Sales
  • Generator Rental
  • Generator Installation
  • Generator Spare Parts
  • Power Interruption Solutions

Renewable & UPS

  • Solar Energy Solutions
  • Commercial / Industrial Solar
  • Solar System Sizing
  • Solar Genius Pro™
  • UPS Systems
  • UPS Lab
  • Solar / UPS Hub
  • Borehole Pumps

Electrical & HVAC

  • Distribution Boards & Panels
  • Motor Rewinding
  • Motors & Drives
  • High-Voltage Systems
  • Diesel Automation
  • Industrial Controls
  • Steel Fabrication
  • AC / HVAC Installation

Specialised & AI Suites

  • Hospital Incinerators
  • Incinerator Construction Guide
  • Building Engineering Suite
  • EIMS PRO Workspace
  • AquaScan Pro™
  • Generator Oracle™
  • Diagnostics Hub
  • Troubleshooting Wizard

Maintenance Hubs

  • Generator Maintenance
  • Solar Maintenance
  • HVAC Maintenance
  • Borehole Maintenance
  • Electrical Maintenance
  • Motors Maintenance
  • Incinerator Maintenance
  • Fabrication & Welding

Resources & Tools

  • Resources & Learning Hub
  • Knowledge Base
  • Technical Bible
  • Power Calculators
  • Fault Code Database
  • Blog & Articles
  • FAQ
  • Emergency Response Guide

Service Areas

  • All Kenya — 47 Counties
  • Nairobi
  • Mombasa
  • Kisumu
  • Nakuru
  • Kiambu
  • All Service Locations
EMERSONEiMS

Engineering-grade reliability for East Africa's critical infrastructure. Power systems built to perform.

  • LinkedIn↗
  • Twitter↗
  • Facebook↗

Company

  • About Us
  • All Services
  • Book a Service
  • Project Gallery
  • Case Studies
  • Industries Served
  • Careers
  • Contact Us

Quick Links

  • Generator Sales
  • Solar Energy
  • Diagnostic Suite
  • Solar / UPS Hub
  • Generator Oracle
  • Knowledge Base
  • FAQ

Contact

  • Nairobi HQEmbakasi, off Airport North Road, Nairobi
    (Near KEMSA Head Office)
  • Department Emails
    • General Inquiriesinfo@emersoneims.com
    • Service Coordinationemersoneimservices@emersoneims.com
    • Generator Deskgenerators@emersoneims.com
    • Solar & UPS Desksolar@emersoneims.com
    • Sally — Direct Accountsally@emersoneims.com
  • Phone
    +254782914717
    +254768860665

© 2026 Emerson EiMS. All rights reserved.

Privacy PolicyTerms of Service
ENGINEERED IN NAIROBI, KENYA
  1. Home
  2. /
  3. Fault Codes
  4. /
  5. SPN-110
Cummins

SPN-110

Engine Coolant Temperature High

🚨CRITICAL

Engine coolant temperature has exceeded the maximum safe operating limit. Overheating can cause severe engine damage including head gasket failure, piston scoring, and potential engine seizure. This is a shutdown-class fault that requires immediate attention.

🔍 Possible Causes

  • •Low coolant level from leak or evaporation
  • •Failed thermostat stuck in closed position
  • •Radiator fins blocked with debris
  • •Failed water pump or damaged impeller
  • •Collapsed or restricted coolant hoses
  • •Failed cooling fan or fan clutch

🔧 Troubleshooting Steps

  1. 1Check coolant level in radiator and expansion tank - add if low
  2. 2Inspect for visible coolant leaks at hoses, clamps, and gaskets
  3. 3Verify cooling fan operation and proper belt tension
  4. 4Check thermostat operation - should open at rated temperature
  5. 5Clean radiator fins of any debris or blockage
  6. 6Test water pump for proper flow and impeller condition

🛠️ Parts You May Need

ThermostatWater PumpRadiatorCooling FanFan BeltCoolant Temperature SensorCoolant Hoses

Need parts? We stock genuine Cummins parts with next-day delivery in Nairobi.Call +254 768 860 665

❓ Frequently Asked Questions

What should I do if my generator overheats?

Stop the generator immediately to prevent engine damage. Allow it to cool, then check coolant level, inspect for leaks, verify fan operation, and clean the radiator of debris before restarting.

Can I add water instead of coolant in an emergency?

In an emergency, clean water can be added temporarily. However, replace with proper coolant mixture as soon as possible to prevent corrosion and provide freeze/boil protection.

Need Expert Help?

Our engineers have fixed 1,000+ Cummins generators. Get professional diagnosis now.

WhatsApp EngineerCall +254 768 860 665

Advanced Diagnostics

Use Generator Oracle for AI-powered diagnosis, wiring diagrams, and repair manuals.

Launch Generator Oracle →

Related Fault Codes

SPN-105Intake Manifold Temperature HighSPN-110Engine Coolant Temperature HighDSE-E100High Coolant Temperature ShutdownCOMAP-A020High Coolant Temperature Shutdown