Turn “OFF” machine, and purge pump by squeezing trigger gun until a steady flow of water emerges through the nozzle. Turn power nozzle to high- pressure position.Ĭheck that hoses and fittings are airtight. Power nozzle is in low- pressure position. Replace with a 1” (25 mm) or 5/8” (16 mm) garden hose.Ĭheck garden hose for kinks, leaks and blockage. ( ensure when you turn on the unit, trigger gun is at “on” position). Switch off pressure washer, squeeze trigger gun waiting for a steady flow of water emerge from spray nozzle, then turn on the unit. Tripped pressure washer temperature breaker Drain fuel tank fill with fresh fuel.Ĭraftsman 138.75275 pressure washer troubleshooting Edit PROBLEMĮlectrical outlet does not sup- ply adequate power.

Spark plug wire not connected to spark plug.ħ. If engine still “bogs down”, contact local service facility.Įngine will not start or starts and runs rough.Ĥ. Rotate detergent shut-off valve to “On” position.Įngine runs good at no-load but “bogs” when load is added. Detergent shut-off valve is in “Off” position.ġ. High pressure hose is blocked or leaks.ġ. Pump has following problems: failure to produce pressure, erratic pressure, chattering, loss of pressure, low water volume.ħ. – Flow regulation control is set to low pressureĬheck to see that water supply is on full force or use stationary water source.Īdjust detergent metering valve to desired setting.Ĭlean filter in suction nozzle Clean nozzleĬraftsman 580.7523 pressure washer troubleshooting Edit Problem Stop engine, press trigger of gun, start engine and run unit while depressing trigger

The unloader valve kit includes the O-ring and all parts needed for the repair.įollow these steps to replace a Briggs & Stratton, Husqvarna, Troybilt, Snapper or Craftsman pressure washer unloader valve.Craftsman 1750 pressure washer troubleshooting Edit Faultĭrain tank and refil tank with fresh, clean fuelĬonnect spark plug wire Replace spark plug If the pressure washer unloader valve isn’t working, replace it using the manufacturer-approved gas pressure washer part. When pressure builds up in the pump because the unloader valve isn't opening as it should, the engine can't continue to turn the pump shaft so the engine dies. The engine stalls when you're not using the wand. This symptom occurs when the unloader valve sticks open. Nozzle water pressure decreases quickly after you press the wand trigger. This happens when the unloader valve clogs or sticks shut. The thermal release valve opens and sprays steam water from the pump. When you let go of the trigger on the wand, the unloader valve opens to recirculate pressurized water to the pump, so the water won't overhead and damage the pump.Ĭommon symptoms that indicate you need to replace the pressure washer unloader valve include: This step-by-step repair guide explains how to replace a pressure washer unloader valve.

Craftsman 1800 4.5 quantum power washer