FLYGT CAS - Channel B Troubleshooting; Channel C Troubleshooting

9
Channel B
No
Connect the multimeter to Check the supply voltage.
terminals 19 and 20. Contact an ITT Flygt service shop.
(NOTE! Correct polarity ±.)
Is the voltage 10.8 – 12V DC?
Yes
No
Disconnect the sensor and Contact an ITT Flygt service shop.
the RUN-switch. Does the
pilot lamp 52 light?
Yes
No
Connect the resistor, 330 Ω Contact an ITT Flygt service shop.
1/2 watt (or reference sensor)
between terminals 19 and 20.
Does the pilot lamp 51 go out ?
Yes
No
Is B-alarm activated within Contact an ITT Flygt service shop.
5 seconds ?
Yes
No
Disconnect the resistor Contact an ITT Flygt service shop.
(or reference sensor).
Reset B-alarm. Activate the
RUN-function by jumpering
24 and 25.
Is B-alarm activated after
about 30 seconds?
Yes
Channel C
No
Disconnect the sensor from Contact an ITT Flygt service shop.
terminals 26 and 27.
Is C-alarm activated?
Yes
Yes
Can C-alarm be reset Contact an ITT Flygt service shop.
manually?
No
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