Generac pressure washer troubleshooting

Generac pressure washers are a kind of modern cleaning equipment, which is widespread due to its reliability and durability. However, during operation, these pressure washers will inevitably wear out, which over time, can lead to their breakage and repair. One of the most common problems is the reduction of pump performance. It is connected directly to “no pressure” problem resulting in the reduction of the washing equipment efficiency. This one and other problems, as well as solutions are in the troubleshooting table below.

ProblemCauseCorrection
Pump has following problems: failure to produce pressure, erratic pressure, chattering, loss of pressure, low water volume.1. Nozzle in low pressure mode.1. Pull nozzle backward for high pressure mode.
2. Water inlet is blocked.2. Clear inlet.
3. Inadequate water supply.3. Provide adequate water flow.
4. Inlet hose is kinked or leaking.4. Straighten inlet hose, patch leak.
5. Clogged inlet hose strainer.5. Check and clean inlet hose strainer.
6. Water supply is over 100°F.6. Provide cooler water supply.
7. High pressure hose is blocked or leaks.7. Clear blocks in outlet hose.
8. Gun leaks.8. Replace gun.
9. Nozzle is obstructed.9. Clean nozzle.
10. Pump is faulty.10. Contact Generac service facility.
Detergent fails to mix with spray.1. Detergent siphoning tube is not submerged.1. Insert detergent siphoning tube into detergent.
2. Chemical filter is clogged.2. Clean or replace filter/detergent siphoning tube.
3. Dirty in-line filter.3. See “Check In-Line Filter" on page 12.
4. Nozzle is in high pressure mode.4. Push nozzle forward for low pressure mode.
Engine runs good at no- load but “bogs” when load is added.Engine speed is too slow.Move throttle control to FAST position. If engine still “bogs down", contact Briggs service facility.
Engine will not start; or starts and runs rough.1. Dirty air cleaner.1. Clean or replace air cleaner.
2. Out of gasoline.2. Fill fuel tank.
3. Stale gasoline.3. Drain gas tank; fill with fresh fuel.
4. Spark plug wire not connected to spark plug.4. Connect wire to spark plug.
5. Bad spark plug.5. Replace spark plug.
6. Water in gasoline.6. Drain gas tank; fill with fresh fuel.
7. Overchoking.7. Open choke fully and crank engine.
8. Excessively rich fuel mixture.8. Contact Briggs service facility.
9. Intake valve stuck open or closed.9. Contact Briggs service facility.
10. Engine has lost compression.10. Contact Briggs service facility.
Engine shuts down during operation.Out of gasoline.Fill fuel tank.
Engine lacks power.Dirty air filter.Replace air filter.
Engine “hunts” or falters.Choke is opened too soon.Move choke to halfway position until engine runs smoothly.

Error codes and troubleshooting