Operating instructions

TM 11574A-OI
3-65
Step Probable Cause Remedy
5 Power assembly failure. Refer to section 3-10b(10).
If fault is not corrected proceed to step 6.
6 Loss of element/bulb charge. Refer to section 3-10b(10).
If fault is not corrected proceed to step 7.
7 Broken capillary. Refer to section 3-10b(10).
If fault is not corrected proceed to step 8.
8 Foreign material in valve. Refer to section 3-10b(10).
If fault is not corrected proceed to k (2).
(2) High suction pressure with low superheat.
Step Probable Cause Remedy
1 Superheat setting too low. Refer to section 3-10b(10).
If fault is not corrected proceed to step 2.
2 External equalizer line plugged ice holding
valve open.
pen external equalizer line IAW
3-b10(10)(e).
If fault is not corrected proceed to step 3.
3 Foreign material in valve. Refer to section 3-10b(10).
If fault is not corrected proceed to step k (3).
(3) Liquid slugging in compressor.
Step Probable Cause Remedy
1 Superheat setting too low. Refer to section 3-10b(10).
If fault is not corrected proceed to step k (4).
(4) Fluctuating suction pressure.
Step Probable Cause Remedy
1 Improper bulb location or installation. Refer to section 3-10b(10).
If fault is not corrected proceed to step 2.
2 Low superheat setting. Refer to section 3-10b(10).