TP-6881 7/15 57Section 4 Troubleshooting
4.6 Thermostat Information
8RESV(L), 10RESV(L), and 12RESV(L) generators
include a resettable thermostat in the air intake
compartment. The thermostat detects excess heat
inside the enclosure. If the thermostat trips, the
generator will shut down and the controller will display a
fault (underspeed, underfrequency, or undervoltage). If
the thermostat trips for some reason other than high
temperature (i.e. a nuisance trip), follow these steps to
reset the thermostat.
1. Disconnect the utility power to the generator by
opening (turning OFF) the corresponding circuit
breaker at the building’s distribution panel.
2. Open the enclosure roof.
3. Press the button on the thermostat to reset it. See
Figure 4-3 for the thermostat location.
4. Reconnect utility power to the generator set by
closing the circuit breaker in the distribution panel.
5. Reset the fault on the RDC2/DC2 controller. Refer
to the generator Operation Manual for instructions,
if necessary.
1
1. Thermostat
Figure 4-3 Thermostat Location
4.7 OnCue Plus Troubleshooting
See TP-6928, OnCueR Plus Software Operation
Manual, for troubleshooting instructions for the OnCue
Plus Generator Management System.
4.8 Fuel System Troubleshooting
Explosive fuel vapors.
Can cause severe injury or death.
Use extreme care when handling,
storing, and using fuels.
WARNING
The fuel system. Explosive fuel vapors can cause severe
injury or death. Vaporized fuels are highly explosive. Use
extreme care when handling and storing fuels. Store fuels in a
well-ventilated area away from spark-producing equipment
and out of the reach of children. Never add fuel to the tank
while the engine is running because spilled fuel may ignite on
contact with hot parts or from sparks. Do not smoke or permit
flames or sparks to occur near sources of spilled fuel or fuel
vapors. Keep the fuel lines and connections tight and in good
condition. Do not replace flexible fuel lines with rigid lines. Use
flexible sections to avoid fuel line breakage caused by
vibration. Do not operate the generator set in the presence of
fuel leaks, fuel accumulation, or sparks. Repair fuel systems
before resuming generator set operation.
Gas fuel leaks. Explosive fuel vapors can cause severe
injury or death. Fuel leakage can cause an explosion. Check
the LPG vapor or natural gas fuel system for leakage by using
a soap and water solution with the fuel system test pressurized
to 6--8 ounces per square inch (10--14 inches water column).
Do not use a soap solution containing either ammonia or
chlorine because both prevent bubble formation. A successful
test depends on the ability of the solution to bubble.
LPG liquid withdrawal fuel leaks. Explosive fuel vapors
can cause severe injury or death. Fuel leakage can cause
an explosion. Check the LPG liquid withdrawal fuel system for
leakage by using a soap and water solution with the fuel
system test pressurized to at least 90 psi (621 kPa). Do not
use a soap solution containing either ammonia or chlorine
because both prevent bubble formation. A successful test
depends on the ability of the solution to bubble.
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