TM 9-4120-370-14
TO 35E9-229-1
TABLE 3-1. TROUBLESHOOTING (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. COMPRESSOR DOES NOT START IN COOL MODE. (NO COOLING) (Conditioned air fans operate, but
NOTE
If power has just been connected to unit, a short (30 minute maximum during very cold
weather) warm up period is required. When compressor reaches a safe operating tem-
perature, it will come on automatically if the mode selector switch is in the COOL mode.
Step 1. Check to see if HIGH or LOW PRESSURE CUTOUT switch has tripped.
PUSH and release TO RESET.
NOTE
If cutout switch(es) continue to trip, contact unit maintenance.
Step 2. Check operation of mode selector switch.
Turn switch to OFF, then reset to COOL.
NOTE
Allow 30 seconds time delay before compressor starts.