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TP-7092 2/2174 Section 5 Troubleshooting
5.6 Thermostat
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working on the generator set.
Remove the negative (- ) lead first
when disconnecting the battery.
Reconnect the negative (- ) lead last
when reconnecting the battery.
WARNING
Disabling the generator set. Accidental starting can
cause severe injury or death. Before working on the
generator set or equipment connected to the set, disable the
generator set as follows: (1) Press the generator set off/reset
button to shut down the generator set. (2) Disconnect the
power to the battery charger, if equipped. (3) Remove the
battery cables, negative (- ) lead first. Reconnect the negative
(- ) lead last when reconnecting the battery. Follow these
precautions to prevent the starting of the generator set by the
remote start/stop switch.
Hot engine and exhaust system.
Can cause severe injury or death.
Do not work on the generator set until
it cools.
WARNING
Servicing the exhaust system. Hot parts can cause
severe injury or death. Do not touch hot engine parts. The
engine and exhaust system components become extremely
hot during operation.
The generator sets include a resettable thermostat. See
Figure 5-2 for the thermostat location in the air intake
area, near the fuel system. 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). Check for blocked air inlets and exhaust
outlets. Then follow these steps to reset the thermostat.
Procedure 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 and secure it with the roof
stay on the left side of the enclosure.
3. Remove the air intake panel. See Figure 5-2.
4. Press the button on the thermostat to reset it.
5. Replace the air intake panel.
6. Reconnect utility power to the generator set by
closing the circuit breaker in the distribution panel.
7. Reset the fault on the controller. Refer to Section
2.5 for instructions, if necessary.
1. Thermostat location
2. Thermostat reset button
1
2
Figure 5-2 Thermostat
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