Black Max BM80919 - Troubleshooting

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TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
Engine fails to start No fuel in tank
Spark plug shorted or fouled
Spark plug is broken (cracked porcelain
or electrodes broken)
Ignition lead wire shorted, broken, or
disconnected from spark plug
Ignition inoperative
Fill tank
Replace spark plug
Replace spark plug
Replace lead wire or attach to spark plug
Contact authorized service center
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 Detergent injection hose is not properly
submerged
High pressure nozzle attached
Insert injection hose into detergent
container or detergent bottle
Use low pressure nozzle (black) to apply
detergent
Pump doesn’t produce pressure Low pressure nozzle installed
Inadequate water supply
Trigger handle or spray wand leaks
Nozzle is clogged
Pump is faulty
Air in line
Replace with high pressure nozzle
Provide adequate water flow
Check connections and/or replace
trigger handle or spray wand
Clean nozzle
Contact authorized service center
Squeeze trigger on trigger handle to
remove air from line
Machine doesn’t reach high pressure Diameter of garden hose is too small
Water supply is restricted
Not enough inlet water
Wrong nozzle is attached
Replace with 3/4 in. garden hose
Check garden hose for kinks, leaks, and
blockages
Open water source full force
Attach the high pressure nozzle