North Star M165938N - Manual (Page 39)

Troubleshooting
39
TROUBLESHOOTING
Problem Possible Causes Possible Remedies
Engine will not start. a) Low oil level.
b) Fouled spark plug.
c) Out of fuel.
d) Stop switch in OFF position.
e) Battery disconnected or dead.
f) Fuel selector switch is OFF position. a) Fill crankcase to proper oil level.
b) Clean or replace spark plug.
c) Fill fuel tank.
d) Place switch in ON position.
e) Charge or replace battery.
f) Place switch in desired location (Gasoline or
LP/NG).
Voltage too low. a) Engine speed too slow.
b) Generator is overloaded.
a) Bring generator to a qualified technician for
adjustment.
b) Reduce the load. (See Power Load Planning
& Mgt. section of this manual.)
Circuit breaker trips. a) Defective load connected to generator.
b) Defective receptacle.
c) Generator overloaded.
a) Disconnect load.
b) Replace receptacle.
c) Reduce the load. (See Power Load Planning
& Mgt. section of this manual.)
Voltage too high. a) Engine speed too high. a) Bring generator to a qualified technician for
adjustment.
Generator overheating. a) Generator is overloaded.
b) Insufficient ventilation. a) Reduce the load. (See Power Load Planning
& Mgt. section of this manual.)
b) Make sure there is at least 3 feet of clearance
on all sides of generator.
No output voltage. a) Defective load connected to generator.
b) Broken or loose wire.
c) Defective receptacle.
d) Defective stator.
e) Defective rotor.
f) Defective capacitor. a) Disconnect load.
b) Bring generator to a qualified technician for
repair.
c) Replace receptacle.
d) Bring generator to a qualified technician for
repair.
e) Bring generator to a qualified technician for
repair.
f) Bring generator to a qualified technician for
repair.
Engine lacks power or
sputters. a) Generator is overloaded.
b) Dirty air filter.
c) LP/NG hose is connected to the wrong
carburetor inlet.
d) Fouled spark plug. a) Reduce the load. (See Power Load Planning
& Mgt. section of this manual.)
b) Clean or replace air filter.
c) For LP, the hose should be on the left inlet.
For NG, the hose should be on the right inlet.
d) Clean or replace spark plug.
Engine shuts down
during operation. a) Out of fuel.
b) Low oil level. a) Fill fuel tank.
b) Fill crankcase to proper oil level.
Engine will not start on
gasoline. a) Engine out of fuel.
b) Engine cold.
c) Vacuum hose is loose. a) Refuel engine.
b) Choke engine.
c) Reattach vacuum hose. Item 29 on
Exploded View.
Engine will not start on
LP or Natural Gas. a)Load Block needs adjustment
b) Battery is low on charge causing engine to
crank at a lower rpm.
c) Inlet fuel pressure is incorrect.
d) Engine choke lever is in the choke position.
e) Fuel lockoff valve upstream of the
generator set is turned off. a) See page 8 of this manual.
b) Recharge battery.
c) Inlet fuel pressure should be within 7”-11” water
column, or 4-6 oz.
d) Move the choke lever to the open position.
Never choke the engine when operating on LP or
NG fuel.
e) Open valve.
Engine sputters when
switching from gasoline
to LP or Natural Gas. a) This is normal operation. a) Run the unit with the fuel switch in the NONE
position for several seconds until the engine
begins to hunt. Then move the switch to the
LP/NG position.