If the pressure washer is broken, do not rush to call the master. Before looking for breakage, check whether all the parts are correctly assembled, whether the water is switched on, whether the device is connected to electricity? Many causes of malfunctions can be eliminated on your own. The table of troubleshooting shows the most frequent causes of breakages and options for their elimination.
Black Max BM801700 pressure washer troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pressure washer does not start when trigger is depressed | Power cord not connected to power source | Connect the power cord to a live 120V AC, 60 Hz AC receptacle. |
| Switch is off | Turn switch on. | |
| GFCI is tripped | Press reset button on the GFCI plug. | |
| House/shop circuit breaker is tripped | Reset house/shop breaker. Make sure pressure washer is connected to an individual branch circuit only. If using an extension cord, make sure it is heavy enough to carry the current of the pressure washer. | |
| Water pressure in hose | Squeeze trigger to relieve water pressure. | |
| Pump doesn’t produce pressure | Inadequate water supply | Provide adequate water flow. |
| Spray wand leaks | Check connections and / or replace wand. | |
| Nozzle is clogged | Clean nozzle. | |
| Pump is faulty | Contact authorized service center. | |
| Air in line | Squeeze trigger on spray wand to remove air from line. | |
| Water inlet filter is clogged or dirty | Remove the water inlet filter, rinse with warm water, then replace in unit. | |
| Machine doesn’t reach high pressure | Diameter of garden hose is too small Water supply is restricted | Replace with 3/4 in. garden hose. |
| Not enough inlet water Hose is leaking Kink in hose | Check garden hose for kinks, leaks, and blockages. | |
| Open water source full force. | ||
| Replace hose. | ||
| Eliminate kinks in hose. | ||
| No detergent | Soap tank is empty | Add additional detergent to tank. |
| Water supply is inadequate or clogged | Check garden hose for kinks, leaks and blockages. | |
| Wrong nozzle is attached | Attach blue soap nozzle. | |
| Wand leaks | O-ring needs replacing | Replace o-ring. If this does not correct the problem, contact your authorized service center to purchase a new wand. |
Black Max BM80919A pressure washer troubleshooting
| PROBLEM | CAUSE | SOLUTION |
|---|---|---|
| Engine fails to start | No fuel in tank | Fill tank |
| Water pressure in hose | Squeeze trigger to relieve water pressure Replace spark plug Replace spark plug | |
| Spark plug shorted or fouled | Replace lead wire or attach to spark plug Contact authorized service center | |
| Spark plug is broken (cracked porcelain or electrodes broken) | ||
| Ignition lead wire shorted, broken, or disconnected from spark plug | ||
| Ignition inoperative | ||
| Engine hard to start | Water in gasoline Weak spark at spark plug | Drain entire system and refill with fresh fuel |
| Contact authorized service center | ||
| Engine lacks power | Dirty air filter | Clean or replace air filter |
| Detergent fails to mix with spray | Spray selector on the 6-in-1 Change- Over Nozzle is set to either the 40°, 25°, or 0° setting | Rotate the spray selector on the 6-in-1 Change-Over Nozzle to either the short range detergent or long range deter- gent setting. |
| Detergent tank is empty | Add detergent to detergent tank | |
| Pump doesn’t produce pressure | Spray selector on the 6-in-1 Change- Over Nozzle is set to either the short range detergent or long range detergent setting. | Rotate the spray selector on the 6-in-1 Change-Over Nozzle to either the 40°, 25°, or 0° setting |
| Inadequate water supply | Provide adequate water flow | |
| Trigger handle or spray wand leaks | Check connections and / or replace trigger handle or spray wand | |
| Nozzle is clogged | Clean nozzle | |
| Air in line | Pull trigger on trigger handle to remove air from line | |
| Hose is leaking | Replace hose | |
| Kink in hose | Eliminate kinks in hose | |
| Choke in ON (START) position | Move choke to OFF (RUN) position | |
| Pump is faulty | Contact authorized service center | |
| Machine doesn’t reach high pressure | Diameter of garden hose is too small | Replace with 3/4 in. garden hose |
| Water supply is restricted | Check garden hose for kinks, leaks, and blockages | |
| Not enough inlet water | Open water source full force | |
| Spray selector on the 6-in-1 Change- Over Nozzle is set to either the short range detergent or long range detergent setting. | Rotate the spray selector on the 6-in-1 Change-Over Nozzle to either the 40°, 25°, or 0° setting |