TM 9-2350-277-20-1
PERSONNEL HEATER MALFUNCTIONSContinued
0086 00
4Y
1. Turn HEATER SWITCH to ON. Do not stop at OFF position.
2. Do blower and pump stay on?
YES
NO
4YN
1. Replace heater ON/OFF/START
switch. See task: Repair heater
control box (WP 0702 00).
2. Verify no faults found.
5Y
1. Does heater continue producing hot air for 10 minutes?
YES
NO
5YN
1. Replace heater (WP 0703 00 or
WP 0704 00).
2. Verify no faults found.
6Y
1. Listen to heater blower.
2. Turn HI/LO switch to HI.
3. Does blower speed increase?
YES
NO
GO TO AY (PAGE 0086 00-3)
7Y
1. Feel heater hot air outlet.
2. Has air temperature increased?
YES
NO
7YN
1. Shut off heater (see your -10).
2. Replace heater (WP 0703 00) or
(WP 0704 00).
3. Verify no faults found.
8Y
NOTE
Heater will automatically shut off when air inlet
temperature is 60 degrees or above. This is normal.
1. Run heater on HI for 10 minutes.
2. Does heater continue producing hot air?
YES
NO
8YN
1. Shut off heater (see your -10).
2. Replace heater (WP 0703 00 or
WP 0704 00).
3. Verify no faults found.
9Y
1. Turn HEATER SWITCH to OFF.
2. Does blower remain on?
YES
NO
9YN
1. Heater does not purge.
2. Replace heater (WP 0703 00) or
(WP 0704 00).
3. Verify no faults found.
0086 00-2