Troubleshooting Your Electric Pressure Washer

Answers to common troubleshooting questions about your Simoniz pressure washer. Always remember to disconnect the device from the power source before troubleshooting your pressure washer.

Select the issue you’re having:

CauseSolution
The On/Off switch is in the OFF position.Turn the switch to the ON position.
The power cord is not plugged in.Plug in the power cord.
The extension cord is too long. The extension cord is not the proper gauge. The extension cord is damaged.Replace the extension cord with either a 25’ (7.6 m) 14/2 gauge cord or a 50’ (15 m) 14/2 gauge cord.
The power outlet does not supply adequate power.Try a different outlet.
Tripped pressure washer circuit breaker.Allow the device to cool, and then restart it.
CauseSolution
The garden hose is too small.Replace it with a 1” (25 mm) or 5/8” (13 mm) garden hose.
Water supply is restricted.Check the garden hose for kinks, leaks or blockage.
Not enough water supply.Open water source fully.
The water inlet filter is clogged.Remove the filter and rinse it with warm water.
The power nozzle is in the low-pressure position.Replace it with the desired high-pressure tip.
The pump is sucking air.Check if all hoses and fittings are airtight. Turn the device OFF, and purge the pump by pulling the trigger on the spray gun until a steady flow of water emerges through the nozzle.
CauseSolution
Not enough inlet water supply.Turn faucet on fully. Check garden hose for kinks, leaks or blockage.
The pump is sucking air.Check if all hoses and fittings are airtight. Turn the device OFF, and purge the pump by pulling the trigger on the spray gun until a steady flow of water emerges through the nozzle.
The water inlet filter is clogged.Remove the filter and rinse it with warm water.
The discharge nozzle is obstructed.Blow out or remove debris with a fine needle.
Calcified gun, hose, or power nozzle.Run distilled vinegar through the detergent container.
CauseSolution
Detergent container is empty.Add more detergent.
Detergent bottle or suction tube not properly connected.Check connections.
Detergent is too thick.Dilute detergent.
The filter on the detergent suction tube is clogged.Run warm water through the filter to remove build-up.
Damaged or clogged detergent suction tube.Remove obstruction or replace the detergent suction tube.
Using a high-pressure coloured spray tip.Use the low-pressure tip.
The discharge nozzle is obstructed.Blow out or remove debris with a fine needle.
CauseSolution
Loose fittings.Tighten fittings.
Missing/worn rubber washer.Remove old washer and replace with new one.
CauseSolution
The spray nozzle was not properly attached.Ensure the quick-connect wand is attached securely. Ensure the spray tip is clicked in securely.
Broken O-ring or plastic insert.Call the Toll-free Hotline, 1-866-474-6664.
CauseSolution
The pump is sucking air.Check if all hoses and fittings are airtight. Turn the device OFF and purge the pump by pulling the trigger on the spray gun until a steady flow of water emerges through the nozzle.
The water filter is clogged.Remove the filter and rinse it with warm water.
CauseSolution
Loose fittings.Check if all fittings are tight.
Water seals are damaged or worn.Call the Toll-free Hotline, 1-866-474-6664.
CauseSolution
Oil seals are damaged or worn.Call the Toll-free Hotline, 1-866-474-6664.
CauseSolution
Supply voltage below minimum requirement.Verify that only the pressure washer is running on this circuit.
System has residual pressure.Turn the device OFF, pull the trigger on the spray gun to release pressure, and then turn the device back ON.
Voltage loss due to the extension cord.Unplug any extension cords attached and plug the unit directly into the outlet.
Residual friction among components. The device might hum.Disconnect water supply and power ON for 2 to 3 seconds. Repeat this procedure a few times, or until the motor starts.
CauseSolution
Water supply is OFF.Turn on the water supply.
Kink in the garden hose.Remove the kink in the garden hose.
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