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Troubleshootin
g
Error
Code
Error
Location
Type Name
Cause Solution
Short circuit
of motor
wiring.
Check wiring t
othemotor
to ensure no ba
re wires
are touching a
nd that
no wires are sh
orted to
ground.
Motor will no
t rotate.
Replace motor. See
system repair manual.
A4NM
MCM
ALARM High Motor
Current
Chemical pump is stuck
Repair or replace chemical
pump. See system repair
manual.
A7CH
Hose ALARM Unexpected
Relay Current
Shorted HPTCM. Replace Module. See
system repair manual.
A7DA Boost A
A7DB Boost B
ALARM Unexpected
Heater Current
Shorted L
PTCM.
Replace M
odule. See
System Re
pair manual.
Turned of
f main power
switch wi
th heaters and
motor ON
.
Turn off h
eat and motor
power at A
DM before
turning
off the main power
switch.
Turned o
n hose circuit
breaker
with hose heat
on.
Turn on c
ircuit breaker
with hos
e heat off.
Failed to power off after
loading software.
Power off after software
downloaded.
A7DH Hose ALARM Unexpected
Heater Current
Shorted HPTCM. Replace Module. See
system repair manual.
Tripped circuit breaker. Visually check circuit
breaker for a tripped
condition.
A8DA
A8DB
A8DH
Boost A
Boos
tB
Hose
ALARM No Heater
Current
Loose/broken
connection.
Chec
k heater wiring for
loo
se wires.
76 3A1705J