TM 9--2350--292--20--1
0140 00--9
PERSONNEL HEATER FAILS TO OPERATE PROPERLY -- CONTINUED
0140 00
W
Is 24 V dc present?
CONTINUED FROM STEP V
no
yes
CONTINUED ON NEXT PAGE
1. Place HEATER CONTROL switch to RUN
position (TM 9--2350--292--10).
2. Place multimeter red lead on heater control box
receptacle pin A and black lead to ground.
Check for voltage.
Replace HEATER CON-
TROL switch (WP 0248 00).
Verify fault is corrected.
X
Is continuity present?
no
yes
1. Place HEATER CONTROL switch to OFF
position (TM 9--2350--292--10).
2. Disconnect lead 402 from heater fuel pump.
3. Place one multimeter lead in control box
connector socket A and other lead in fuel pump
connector socket. Check for continuity.
Repair (WP 0290 00) or
replace (WP 0323 00)
lead 402 to fuel pump.
Verify fault is corrected.
Y
Does fuel pump operate?
no
yes
1. Reconnect harness 4W124 to heater control
box.
2. Disconnect harness 4W124 from personnel
heater.
3. Place HEATER CONTROL switch to RUN
position (TM 9--2350--292--10).
4. Place HEATER CONTROL switch to OFF
position (TM 9--2350--292--10).
Go to WP 0141 00
and troubleshoot
the fuel pump.