Piper PA-34-200T Seneca II User Manual

PIPER
SENECA
II SERVICE
MANUAL
TABLE XIV-IV.
TROUBLESHOOTING
CHART
(PROPELLER
DEICER
SYSTEM)
Cause
Trouble
Remedy
Ammeter shows zero cur-
rent. (All 4 phases of
the 2 minute cycle.)
Tripped
circuit
breaker
switch.
Locate
and
correct
short
before setting
circuit
breaker.
No
power
from
airplane.
Circuit
breaker
switch
faulty.
Ammeter
faulty.
(If
some
or all deicers
heat
with
ammeter
at zero,
re-
place the ammeter.)
Open
ammeter
to timer.
If no
voltage
into
switch.
locate
and correct
open.
If
no voltage
at switch
output
with
voltage
at
switch
input,
replace
the
switch.
If
voltage
is
satisfactory
at switch
output,
go to
next
step.
Test
for voltage
up to
and out
of ammeter.
If
low
or zero
output
and
input
satisfactory,
re-
place ammeter.
If
no
voltage
to ammeter,
lo-
cate
and fix open
between
switch
and
ammeter.
Disconnect
harness at
timer and check voltage
at Pin
B (of harness)
to
ground. If none, locate
and correct
open.
ACCESSORIES AND UTILITIES
Reissued:
10/11/79
3B9
Island Enterprises

Piper PA-34-200T Seneca II Specifications

General

Brand	Piper
Model	PA-34-200T Seneca II
Category	Tools
Language	English