Columbus UK, Darlington Office Based

Here’s a more detailed breakdown of the maintenance tasks for hot water pressure washers, including specific parts and components to inspect and maintain:

Daily Maintenance:

Visual Inspection

  • Check for any visible damage, such as dents or bent components
  • Inspect hoses, connections, and fittings for leaks
  • Ensure the power cord or cable is free from damage


Safety Features:

  • Test emergency shut-off mechanisms to ensure they function correctly in case of an emergency
  • Verify that safety switches, if present, are operational


Hoses and Nozzles:

  • Inspect high-pressure hoses for signs of wear, including abrasions, bulges, or kinks
  • Check nozzles for blockages or wear and replace if necessary


Water Heating System:

  • Drain and flush the water heating system to remove mineral deposits and scale build-up. Follow the manufacturer’s instructions for this process
  • Ensure the thermostat and temperature control settings are accurate

Fuel and Detergent Tanks:

  • Refill the fuel tank if needed.
  • Check and replenish detergent tanks as necessary.

Engine or Motor:

  • Check the oil level in the engine or motor and add oil as recommended by the manufacturer
  • Verify that the engine/motor starts and stops properly.


Regular Maintenance (Weekly or Monthly):

Water Inlet Filter:

  • Inspect and clean the water inlet filter to prevent debris from entering the system


  • Check the oil level in the pump and replace it with the manufacturer-recommended oil if necessary
  • Inspect pump components, such as seals, packing, and pistons, for signs of wear and replace them if needed

Hoses and Connections:

  • Inspect the high-pressure hoses for wear, abrasions, or leaks
  • Check hose connections and fittings for tightness


  • Lubricate moving parts, such as pump components, bearings, and drive belts, as specified by the manufacturer

Pressure Relief Valve:

Test the pressure relief valve to ensure it releases pressure when needed and resets properly

Periodic Maintenance (Every 3-6 Months):

Burner System:

  • Inspect and clean the burner system
  • Check the condition of the fuel nozzle and electrodes and replace them if they show signs of wear or damage.

Burner System Maintenance:

Visual Inspection:

  • Begin by visually inspecting the burner system. Look for any signs of damage, wear, or soot build-up. Ensure that the burner is free from obstructions


  • Check the condition of the electrodes. These are typically located near the burner nozzle and are crucial for igniting the fuel-air mixture
  • Clean the electrodes using a soft brush to remove any carbon or soot deposits that may have accumulated. Make sure they are properly aligned for an efficient spark
  • If the electrodes are damaged or heavily corroded, replace them with new ones. Proper ignition is critical for the burner’s operation.

Burner Nozzle:

  • Inspect the burner nozzle, which is responsible for mixing fuel and air and delivering it to the combustion chamber
  • Clean the nozzle to remove any debris or carbon build-up. Use a nozzle cleaning tool or wire to ensure that the orifices are clear.
  • Check for wear or damage to the nozzle. If it’s heavily worn or corroded, consider replacing it
  • Ensure that the nozzle’s size and type are appropriate for the specific burner and fuel used

Fuel System:

  • Inspect the fuel supply system, including fuel lines, filters, and pumps. Replace fuel filters as recommended by the manufacturer
  • Verify that the fuel pressure is within the specified range to maintain proper combustion

Combustion Chamber:

  • Clean the combustion chamber to remove soot and carbon deposits. This can be done with a soft brush or specialized combustion chamber cleaning tools
  • Ensure that the combustion chamber is free from obstructions and that all parts are securely in place

Burner Motor:

  • If the burner system is equipped with a motor for fuel and air delivery, inspect the motor and its components
  • Check the motor’s operation and ensure it starts and stops correctly. Lubricate the motor’s bearings if necessary
  • Clean the motor’s air intake and ensure it’s free from debris and blockages

Flame Sensor (if applicable):

  • Some burner systems include a flame sensor to detect the presence of a flame. Inspect and clean the flame sensor to ensure it functions properly

Safety Features:

  • Check the burner’s safety features, such as high-temperature limit switches and pressure relief valves, to verify that they are operational and provide safety in case of overheating or excessive pressure

Ignition System:

  • Verify that the ignition system, which may include an ignition transformer or spark plug, is working correctly. Clean or replace components as needed

Combustion Air Intake:

  • Ensure that the combustion air intake is free from blockages and that it provides an adequate supply of fresh air for combustion

Regular maintenance of the burner system is crucial for safe and efficient operation of a hot water pressure washer. Keeping the components clean and in good working condition helps ensure proper combustion, efficient heating of water, and prevents soot build up, which can affect performance and safety. Always follow the manufacturer’s recommendations for maintenance and consult a professional technician for any complex maintenance tasks or repairs.

Air Filters:

  • Inspect the air filter(s) in the engine or motor and replace or clean them according to the manufacturer’s guidelines

Water Supply System:

  • Inspect and clean the water supply tank or system to prevent sediment build up

Annual Maintenance:

Professional Inspection:

  • Schedule an annual maintenance check by a professional technician to conduct a comprehensive inspection
  • The technician should inspect and maintain the engine/motor, heating system, pump, and burner

Component Replacement:

  • Replace any worn or damaged parts, such as seals, hoses, nozzles, or pressure relief valves

Pressure Test:

  • Perform a pressure test to ensure the unit is operating at the correct pressure levels

Proper maintenance is essential for the safe and efficient operation of hot water pressure washers. Adhering to the manufacturer’s maintenance guidelines and keeping a detailed maintenance log helps ensure the equipment remains in optimal working condition and prolongs its lifespan.

Contact Us

Columbus UK based in Darlington, County Durham is your total solution for all types of indoor and outdoor cleaning equipment. We supply high quality industrial cleaning machines to all industries and commercial businesses in mainland Britain, including Newcastle Upon Tyne, Teesside, Durham and Wearside.

Our friendly dedicated team are available to help you with purchasing advice to ensure that you have the correct machine for your industrial floor at an affordable and cost effective price. Columbus offers premium services while ensuring affordability for all Industries.  We cover all areas from Scotland, North East of England, West Midlands down to London.

We also offer mobile service & repair support to all locations.


Tel: 01325 371 439