A pressure washer extension cord needs to be 14 AWG at 25 feet and 12 AWG at 50 feet for a typical 13-amp machine, outdoor-rated, run out flat rather than left on its drum — and, according to the three manufacturers whose manuals I read for this, ideally not there at all. Two of them
A pressure washer pulsating in your hands — a jet that hammers, judders or stutters instead of holding steady — comes down to six things: a partly blocked nozzle, air that was never purged, a worn pump valve, worn packings, an unloader that has stopped committing, or a supply hose delivering water in gulps. Taking
Pressure washer surging is a rhythmic rise and fall in pressure or engine speed, and the fastest way to find the cause is to notice exactly when it happens — with the trigger released, with the trigger held open, or regardless of the trigger. Those three answers point at three different parts, and the fixes
A new pressure washer pump with no pressure is almost never a faulty pump — it is nearly always air that was never purged, a shaft key that did not seat, or an unloader carried over from the machine you just took apart. You have already eliminated the expensive suspect by buying it. What is
A pressure washer surface cleaner not spinning has lost thrust, not power — the bar is turned by the recoil of its own two jets, so anything that blocks, shrinks, unbalances or starves those jets takes the motor away, and far and away the most common culprit is a single partly blocked nozzle you can
When a pressure washer total stop system misbehaves, the switch itself is usually innocent — it is watching for a pressure rise that never arrives because something downstream is leaking, and the machine is reporting that leak in the only language it has. That sentence covers two of the three ways these systems go wrong,
A pressure washer fuel leaking anywhere on the machine is a stop-work fault, not a weekend job: shut the fuel tap, leave the engine off, and do not pull the cord again until you know where the petrol is getting out. Almost every other fault on this site can wait until Saturday. This one sits
A pressure washer uneven spray pattern is a readable symptom: the shape the water makes tells you whether the orifice is partly blocked, physically damaged, worn past its service life, or simply the wrong tip for the machine. A gap in the fan is not the same fault as a forked jet, and a fan
Pressure washer pump noise sorts into six sounds a person can actually tell apart — gravel, a rhythmic knock, a metallic grind, a high whine, a regular tick and a low growl under load — and the quickest way to narrow yours down is to notice what the noise does when you let go of
A pressure washer hard to start on the eighth or tenth pull almost always has a stacked fault, not a single broken part — and the free fix, squeezing the trigger to dump the pressure the pump is still holding, happens before you touch the cord. An engine that eventually runs has spark, compression and
