Troubleshooting Heater; Troubleshooting Radio - Datsun 510 Workshop Manual

TROUBLE SHOOTING HEATER
Condition
Hot air does not
come
out
Motor does
not
operate
Fan cannot be
rotated
smoothly by
hand
Hot air does
Dot
come
out
although
lesfJ
fan is
rotating
Air
temperature
is low
Hot wate
r
does not
circulate
Water tem
perature
is
low
Water
leakage
rom
heater
Defective
defroster
Vibrating
noise
Probable
cause
Open or
short circuit of feed
harness
Defective switch
Defective
motor
Fin is
clogged
Slow rotation of fan
Looseness of fan stallation
Defective water pump
Bending or clogging
of connectir g
hose
Defective
hot
water cock
Air is left in the hose
Defective thermostat
Defective
water hose
Loose
clipping
of water hose
Defective
cylinder
head
gasket
Improper soldering
of heater
core
Defroster
hose
is removed
Bend
or
break of
defroster hose
Looseness of heater
BUpport
Looseness
of
each
fixing
screw
TROUBLE SHOOTING RADIO
IIectricalSpteJD
Corrective action
Check and repair
wiring
harness
Replace
switch
Replace
motor
Clean fin
Replace motor
Repai
r
Repair water pump
Check
or
clean
piping
Repair
Purge
air out of hose
Replace thermostat
Replace
water hose
Retighten
clip
Replace
gasket
Solder
leaking position
Correct connection
Correct
or
replace
Tighten completely
Retighten
each
screw
Condition Probable
cause
Corrective action
Pilot
lamp
does
Melt away fuse
Replace
not
light
when
Improper
connection of
cable
or
Inspect
and
tighten
switch is
on
connector
Broken pilot lamp
Replace
Improper
switch
operation
Repair
or
replace
Pilot
lamp lights
but
sound does
not
come
out
Improper connection
of
antenna
Improper
connection
of
speaker
Improper
circuit
of radio
itself
Tighten
Tighten
Consult Service
Shop
of
radio
manufacturer
85