TM 10-3930-641-20
ELECTRICAL SYSTEMS TROUBLESHOOTING (CONT)
(Sheet 1 of 2)
PROBLEM NO. 7
HEATERS
FLOOR HEATER BLOWER MOTOR DOES NOT WORK
POWER switch ON
The floor heater fan is controlled by a switch with a built-in indicator lamp. This lamp should be a 5D19 Bulb. If this bulb is burned out, it is possible
that a 12 volt bulb was installed by mistake.
The floor heater receives its power from fuse 6, first fuse from left in Right Hand Instrument Panel.
FLOOR HEATER CIRCUIT
Go on to Sheet 2