Troubleshooting - Black Max BM905530 Operator's Manual

PROBLEM
Engine will not start.
Engine hard to start.
Engine lacks power.
AC receptacle does not work.
Generator makes a "spark
knock" or "pinging" noise.
If problem persists after trying the above solutions, contact customer service or a qualified service center for assistance.
NOTICE:
As the equipment owner, you are responsible for the performance of the required maintenance listed in the
Maintenance section It is recommended that you retain all receipts covering maintenance on your equipment. Neglecting
or failing to perform the required maintenance may increase emissions, decrease fuel efficiency, degrade performance,
cause irreversible engine damage and/or void your warranty.

TROUBLESHOOTING

POSSIBLE CAUSE
No fuel.
Stale gasoline or water in gasoline.
Lubricant level is low.
Fuel valve is OFF.
Spark plug faulty, fouled, or improperly
gapped.
Choke lever is in RUN position.
Engine stored without treating or draining
gasoline, or refueled with bad gasoline.
Dirty fuel filter.
CO sensor LED is flashing red, indicating
a CO hazard.
CO sensor LED is flashing yellow and/
or making an audible chirp, indicating a
sensor fault.
Water in gasoline.
Weak spark at spark plug.
Air filter element clogged.
Engine stored without treating or draining
gasoline, or refueled with bad gasoline.
Circuit breaker is tripped.
GFCI is tripped.
Item plugged in is defective.
An occasional light "knocking" or "pinging"
under heavy load is not a cause for concern.
However, if the knocking or pinging oc-
curs under normal load at a steady engine
speed, the problem may be with the brand
of gasoline being used.
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SOLUTION
Fill fuel tank.
Drain entire system and refill with fresh fuel.
Engine is equipped with Low Oil Shutoff.
If engine lubricant level is low, it must be
filled before unit will start. Check engine
lubricant level and fill, if necessary.
Turn fuel valve ON.
Replace spark plug.
Move choke lever to START position.
Drain fuel and carburetor. Refuel with fresh
gasoline.
Replace fuel filter or contact a qualified
service center.
Leave area immediately and relocate to
an open outdoor area. Ventilate area thor-
oughly before occupying again. Ensure the
generator is located in an open outdoor
area at least 20 feet away from all doors,
windows, and occupied spaces, and point
exhaust away from occupied structures.
The CO sensor needs to be repaired or
replaced. Contact customer service or a
qualified service center for assistance.
Drain entire system and refill with fresh fuel.
Replace spark plug or contact a qualified
service center.
Check air filter element. Clean or replace
as needed.
Drain fuel and carburetor. Refuel with fresh
gasoline. If problem continues, contact a
qualified service center.
Reset the AC circuit breaker.
Reset the GFCI.
Try a different item.
Switch to a different brand of gasoline,
making sure that the octane rating is 86
or higher. If problem continues, contact a
qualified service center.