Troubleshooting - Black Max BM80917 Operator's Manual

PROBLEM
Engine fails to start
Engine hard to start
Engine lacks power
Detergent fails to mix with spray
Pump doesn't produce pressure
Machine doesn't reach high pressure 1. Diameter of garden hose is too

TROUBLESHOOTING

POSSIBLE CAUSE
1. No fuel in tank
2. Spark plug shorted or fouled
3. Spark plug is broken (cracked
porcelain or electrodes broken)
4. Ignition lead wire shorted, broken,
or disconnected from spark plug
5. Ignition inoperative
6. Engine lubricant is low
1. Water in gasoline
2. Weak spark at spark plug
3. Engine throttle lever is in MIN
position
1. Dirty air filter
1. Detergent injection hose is not
properly submerged
2. High pressure nozzle attached
1. Low pressure nozzle installed
2. Inadequate water supply
3. Trigger handle or spray wand
leaks
4. Nozzle is clogged
5. Pump is faulty
6. Air in line
small
2. Water supply is restricted
3. Not enough inlet water
4. Wrong nozzle is attached
Page 14 — English
SOLUTION
1. Fill tank
2. Replace spark plug
3. Replace spark plug
4. Replace lead wire or attach to spark
plug
5. Contact authorized service center
6. Check lubricant level and, if
necessary, add engine lubricant as
described earlier in this manual
1. Drain entire system and refill with
fresh fuel
2. Contact authorized service center
3. Move engine throttle lever to MAX
position
1. Clean or replace air filter
1. Insert injection hose into detergent
container or detergent bottle
2. Use low pressure nozzle (black) to
apply detergent
1. Replace with high pressure nozzle
2. Provide adequate water flow
3. Check connections and/or replace
trigger handle or spray wand
4. Clean nozzle
5. Contact authorized service center
6. Squeeze trigger on trigger handle to
remove air from line
1. Replace with 3/4 in. garden hose
2. Check garden hose for kinks, leaks,
and blockages
3. Open water source full force
4. Attach the high pressure nozzle