Rheem GEN20AD-E Guide D'utilisation page 21

Reset Service Code Detection System
The operator must reset the service code detection system
each time it activates. To do so, press the control board OFF
button for 5 seconds. Once the display turns off, leave it off
for at least 30 seconds. Remedy the service code condition,
then return the home generator to service by pressing and
holding the control board AUTO button and installing the 15
Amp fuse (if removed).
Low Battery Voltage
This service code is indicated by Low Battery Voltage
scrolling across the digital display. This condition occurs if
the battery voltage drops below the preset value. Causes for
this problem may be a service code battery or battery charge
circuit. See Battery Charge Circuit.
Remove the 15 Amp fuse and disconnect the battery from
the generator. Test the battery voltage. If voltage meets
specifications, take the battery to a local battery store for
analysis. Or contact your local service center for assistance.
Reinstall the battery (replace if necessary - see Battery in
Final Installation Considerations in the installation manual).
Then reset the service code detection system, as described
earlier.
Low Oil Pressure
This service code is indicated by Low Oil Pressure scrolling
across the digital display. 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 will appear. In
this case, contact an authorized dealer.
Under Voltage
This service code is indicated by Under Voltage scrolling
across the digital display. 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.
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Over Voltage
This service code is indicated by Over Voltage scrolling
across the digital display. 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. 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 ed engine ig ed engine ig
is clogged. You may need to contact your installer for u may need u may nee
assistance if you can't remedy these problems. if you can't r f you can't
Low Frequency equency quency
This service code is indicated by Low Frequency scrolling s service cod service c
across the digital display. This feature protects devices across the di cross the di
connecte connected connected to the transfer switch by shutting the generator
down i down if the engine runs slower than 55 Hz for three seconds. own i
This This condition is caused by a failed engine component, This
. In
e electronic governor 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. This condition can be caused by a
problem within the electronic governor system.
To resolve the problem, contact your installer or an
authorized dealer.
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k plug(s), a l plug(s), a
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