DRAFT
TM 5-4210-249-13&P-2
0181
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 1.
Install test lead between black wire at circuit breaker 15 and ground. Remove
thermostat switch (WP 0605). Check for continuity across black/blue wire, from
thermostat switch, terminal blue wire, to a known good ground.
If there is no continuity, replace black/blue wire.
Step 2.
Remove test lead, and check for continuity from blue wire at thermostat switch terminal
to a known good ground.
If there is continuity, replace black/blue wire.
Step 3.
Check for continuity across purple wire from thermostat switch to junction box terminal
block.
If there is no continuity, replace purple wire.
Step 4.
Check for continuity across white wire, from junction box terminal block to a known
good ground.
If there is no continuity, replace white wire.
Step 5.
Check for continuity across green wire, from junction box terminal block to a known
good ground.
If there is no continuity, replace green wire.
NOTE
Circuit breaker may appear to be in ON position when tripped. To make sure circuit
breaker is not tripped, reset circuit breaker by switching it to OFF position then back to ON
position.
Step 6.
Reset circuit breaker 15, and check for continuity across circuit breaker 15.
If there is no continuity, replace circuit breaker 15 (WP 0360).
0181-3
