69
SERVICING
Compressor and outdoor
f
.
Low pressure s witch
trip 3 times within same
thermostat demand.
Ther mostat demand is
present.
Integrated control
module diagnostic/status
LED displ ay sho ws the
indicated code .
displays error message .
L
1
Low Pressure
Cut Out
Loc kout
(3 Tr ips)
LPS
01
Low refrigerant
charge .
Restr iction in
liquid line.
Indoor blower
motor failure.
Indoor
thermostat set
extremely lo w.
Ve rify refr igerant
charge; adjust as
needed.
Chec k for
restr icted liquid
line; repair/replace
as needed.
Chec k indoor
blower motor ;
repair/replace as
needed.
Chec k low
pressure switch;
repair/replace as
needed.
Chec k indoor
thermostat setting.
Turn power OFF pr ior
to repai r.
Must clear f ault by
cycling 24V AC to
control.
Replace with correct
replacement par t(s).
Four consecutiv e
compressor protector tr ips
with average r un time
between trips greater than
1 minute and less than 15
minutes.
Low pressure and high
pressure switches are
closed.
Integrated control
module diagnostic/status
LED displ ay sho ws the
indicated code .
0
2
High Side
Fault
HIGH SIDE
FA ULT
02
Bloc ked
condenser coil.
Outdoor fan not
running.
Chec k and clean
condenser coil.
Chec k outdoor
fan motor ; repair/
replace as
needed.
Chec k outdoor
fan motor wir ing;
repair/replace as
needed.
Chec k outdoor
fan motor
capacito r; replace
as needed.
Turn power OFF pr ior
to repai r.
Fault will clear after 4
consecutiv e nor mal
cycles .
Fault ma y be cleared
by cycling 24V AC to
control.
Replace with correct
replacement par t(s).
Compressor and outdoor
f
.
Ther mostat demand is
present.
Integrated control
module diagnostic/status
LED displ ay sho ws the
indicated code .
0
2
High
Pressure
Cut Out
Tr ip
02
Bloc ked
condenser coil.
Outdoor fan not
running.
Chec k and clean
condenser coil.
Chec k outdoor
fan motor ; repair/
replace as
needed.
Chec k outdoor
fan motor wir ing;
repair/replace as
needed.
Chec k outdoor
fan motor
capacitor ; replace
as needed.
Turn power OFF pr ior
to repai r.
Replace with correct
replacement par t(s).
Compressor and outdoor
f
.
Low pressure s witch
trip 3 times within same
thermostat demand.
Ther mostat demand is
present.
Integrated control
module diagnostic/status
LED displ ay sho ws the
indicated code .
displays error message .
L
2
High
Pressure
Cut Out
Loc kout
(3 Tr ips)
HPS
02
Bloc ked
condenser coil.
Outdoor fan not
running.
Chec k and clean
condenser coil.
Chec k outdoor
fan motor ; repair/
replace as
needed.
Chec k outdoor
fan motor wir ing;
repair/replace as
needed.
Chec k outdoor
fan motor
capacitor ; replace
as needed.
Turn power OFF pr ior
to repai r.
Must clear f ault by
cycling 24V AC to
control.
Replace with correct
replacement par t(s).
Digit 3
Digit 2 Digit 1
