User manual
25
Low Oil Pressure 
This service code is indicated by Low Oil Pressure scrolling 
across the digital display and two flashes on the wireless 
monitor. The unit is equipped with an oil pressure switch 
that uses normally closed contacts held open by engine oil 
pressure during operation. Should oil pressure drop below 
the 8 psi range, switch contacts close and the engine will 
shut down.
To remedy the low oil pressure condition, add the 
recommended oil to the FULL mark on the dipstick.
If the low oil pressure condition still exists, the engine will 
start, then shut down again. The service code code will 
appear. In this case, contact an authorized dealer.
Under Voltage
This service code is indicated by Under Voltage scrolling 
across the digital display and three flashes on the wireless 
monitor. This condition is caused by a restriction in the 
fuel flow, the electronic governing system not functioning 
properly, a broken or disconnected signal lead, a failed 
alternator winding, the control board circuit breaker is open, 
or the generator is overloaded.
To remedy the problem, contact your installer or an 
authorized dealer.
Over Voltage
This service code is indicated by Over Voltage scrolling across 
the digital display and three flashes on the wireless monitor. 
This feature protects devices connected to the transfer 
switch by shutting the generator down if the generator 
output voltage happens to increase above the preset limit. 
This condition is most likely caused by a failed voltage 
regulator, alternator excitation circuit or a load imbalance. To 
remedy the problem, contact your installer or an 
authorized dealer.
Engine Does Not Start
This service code is indicated by Engine Does Not Start 
scrolling across the digital display and four flashes on the 
wireless monitor. This feature prevents the generator from 
damaging itself if it continually attempts to start in spite 
of another problem, such as no fuel supply. Each time the 
system is directed to start, the unit will crank for 10 seconds, 
pause for 10 seconds, and repeat. If the system does not 
begin producing electricity after approximately 2 minutes, 
the unit will stop cranking.
The most likely cause of this problem is no fuel supply or 
incorrect fuel selector setting. See Fuel Selection Switch in 
the installation manual. Check the internal and external fuel 
shut off valves to ensure they are fully open. Other causes 
could be failed spark plug(s), a loose electronic governor 
connection, a failed engine ignition, or the engine air filter 
is clogged. You may need to contact your installer for 
assistance if you can’t remedy these problems.
Low Frequency
This service code is indicated by Low Frequency scrolling 
across the digital display and five flashes on the wireless 
monitor. This feature protects devices connected to the 
transfer switch by shutting the generator down if the engine 
runs slower than 55 Hz for three seconds. This condition is 
caused by a failed engine component, electronic govenor 
system, or by excessive loads on the generator. To resolve 
the problem, contact your installer or an authorized dealer.
Engine Overspeed
This service code is indicated by Engine Overspeed scrolling 
across the digital display and six flashes on the wireless 
monitor. This condition can be caused by a problem within 
the electronic govenor system.
To resolve the problem, contact your installer or an 
authorized dealer.
High Oil Temperature
This service code is indicated by High Oil Temperature 
scrolling across the digital display and seven flashes on the 
wireless monitor. The contacts of the temperature switch 
are normally open. If the engine temperature exceeds a 
predetermind temperature, the service code is detected and 
the engine shuts down.
Common causes for this condition include running the 
unit with an access doors removed, obstructed air inlet 
or exhaust port, or debris in the engine compartment or 
running unit with roof open.
To resolve the problem, let the engine cool down and remove 
any accumulated debris and obstructions. Ensure that the 
access doors are installed and the roof is closed whenever 
the unit is running. If problem persists, contact your installer 
or an authorized dealer.
Transfer Switch Service code
This service code is indicated by Transfer Switch Service 
code scrolling across the digital display (if transfer switch is 
equipped with service code detection) and eight flashes on 
the wireless monitor.
The most likely cause of this service code is a blown fuse in 
the transfer switch. To remedy the problem, contact your 
installer or an authorized dealer.
No Wireless Communication
This service code is indicated by No Monitor Communication 
scrolling across the digital display. The SERVICE NEEDED red 
LED on the wireless monitor will flash 20 fast pulses, pause 
5 seconds, and repeat if there is a loss in communication 
between the wireless monitor and the generator. 
To resolve the problem, move the wireless monitor closer to 
generator. Re-link if necessary.
Battery Charge Circuit
This service code is indicated by Battery Charge Circuit 
scrolling across the digital display. The most likely cause is 
an electrical problem with the control panel. To remedy the 
problem, contact your installer or an authorized dealer.
NOT 
for 
REPRODUCTION










