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Manual 26185
TecJet 110 Fuel Metering System
Woodward
33
WARNINGS
Warning Description
Possible
Cause
Possible
Actions
Fuel Gas
Temperature
Sensor Low
The Fuel Gas
Temperature sensor
has failed to a low
value and the default
fuel gas temperature
is being used instead.
Internal fault.
Replace valve.
Input Voltage
High
The battery voltage
seen by the valve is
above the limit
specified in the
manual.
Faulty battery or supply.
Faulty or no battery
charger.
Improper wiring.
Check battery or supply for
correct operation.
Check battery charger for
correct operation.
Check wiring for correct
size, length, contacts,
fuses.
Input Voltage
Low
The battery voltage
seen by the valve is
below the limit
specified in the
manual.
Faulty battery or supply.
Faulty or no battery
charger.
Improper wiring.
Check battery or supply for
correct operation.
Check battery charger for
correct operation.
Check wiring for correct
size, length, contacts,
fuses.
PWM Flow
Demand High
The PWM flow
demand exceeds the
PWM flow demand
maximum duty cycle
fail limit.
PWM wiring problem.
PWM frequency is out of
range.
PWM duty cycle is out of
range.
Check the PWM input
wiring for shorts, open
connections and
intermitted contacts.
Verify that the PWM
frequency from the ECM is
within specified limits.
Ensure that the PWM
signal is within the
configured range. The
service tool displays the
PWM frequency, duty
cycle, and range limits.
PWM Flow
Demand Low
The PWM flow
demand is below the
PWM flow demand
minimum duty cycle
fail limit.
PWM wiring problem.
PWM frequency is out of
range.
PWM duty cycle is out of
range.
Check the PWM input
wiring for shorts, open
connections and
intermitted contacts.
Verify that the PWM
frequency from the ECM is
within specified limits.
Ensure that the PWM
signal is within the
configured range. The
service tool displays the
PWM frequency, duty
cycle, and range limits.
Содержание TecJet 110
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