Troubleshooting a Burner System on a Hotsy 555SS: A Comprehensive Guide

August 03, 2023

If you own a Hotsy 555SS pressure washer, you know how important its burner system is for vigorous cleaning. The burner can malfunction like any mechanical equipment. In this blog post, we’ll discuss frequent burner system issues and offer step-by-step troubleshooting to keep your Hotsy 555SS working at full performance.

1. Safety First

Prioritize safety before troubleshooting. Before inspecting or maintaining the burner system, switch off the pressure washer, unplug it, and let it cool. For safety, wear gloves and eye protection.

2. Fuel Source

Ensure fuel supply before troubleshooting the burner system. Check the fuel level and type (usually diesel or kerosene). Check for fuel line clogs that could restrict fuel flow to the burner. Consider draining and replenishing tainted fuel.

3. Check Ignition

The ignition system ignites fuel and generates heat for the burner. Check the ignition electrode and wire for damage or corrosion. Remove dirt and debris from the electrode to ensure ignition. Check the spark plug’s condition and adjustment.

4. Check Electrical Connections

A bad electrical connection could damage the burner system. Check electrical connections and wiring for damage, loose connections, and fraying. Replace broken wires and tighten connections.

5. Check Air Intake/Exhaust

Combustion efficiency depends on airflow. Clean the air intake vents. Clogged air intake vents disturb the air-to-fuel ratio and cause inefficient burning. Check the exhaust system for clogs.

6. Clean/Replace Fuel Filters

Fuel filters protect the burner system from contaminants. Clogged filters reduce fuel flow and burner performance. Follow the manufacturer’s fuel filter maintenance schedule.

Fuel Pressure

Incorrect fuel pressure causes burner instability. Use a pressure gauge and the Hotsy 555SS instructions to set fuel pressure. Adjust fuel flow to the burner.

Check Burner Settings

After checking everything, make sure the burner settings match the manufacturer’s. Adjust thermostat, pressure regulator, and other adjustments as needed.

  1. Hire Help

If the burner system doesn’t work after troubleshooting, call a Hotsy specialist a 719-636-3388. They identify and repair complicated situations safely.


A systematic approach and attention to detail can help you troubleshoot a Hotsy 555SS pressure washer burner system. Prioritize safety, inspect all components, and follow manufacturer maintenance and adjustment instructions. Doing so will fix your Hotsy 555SS and extend its lifespan and performance.