Sears GT Series Installation Instructions Manual page 35

Geothermal
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IIIIIIIIIIIhlllllllllllllllllllllllllllllllllll
.............................................................................................................................................................................................................................................
IIIIIIIIIh,,,,,
........
_ ..........................................
S'I_I_
_IUI_
YELLOW"ALERT"
FLASH CODE 3
YELLOW"ALERT"
FLASH CODE4
YELLOW"ALERT"
FLASH CODE 5
YELLOW"ALERT"
FLASH CODE 6
YELLOW"ALERT"
FLASHCODE 7
YELLOW"ALERT"
FLASHCODE 8
Short Cycling
Compressor
is
running
only briefly
Locked
Rotor
Open Circuit
Open
Start Circuit
Current
only in run
circuit
Open
Run Circuit
Currentonlyln
start
circuit
Welded
Contactor
Compressor
always
runs
Low Voltage
Control
circuit
<
17VAC
YELLOW "ALERT"
FLASHCODE 9
].
Thermostat
demand
signal IS intermittent
2.
Time delay relay or control
board
defective
3.
If high pressure
switch
present go to Flash Code 2
information
4.
If low pressure
switch
present
go to Flash Code ]
information
1.
Run capacitor
has failed (may not be bad, verify)
2.
Low line voltage
(contact
utility
if voltage
at disconnect
is low)
Check wiring
connections
3.
Excessive liquid
refrigerant
in compressor
4.
Compressor
bearings
are seized
Measure
compressor
oil level
].
Outdoor
unit power
disconnect
is open
2.
Compressor
circuit
breaker
or fuse(s) is open
3.
Compressor
contactor
has failed open
Check compressor
contactor
wiring
and connectors
Check for cornpressor
contactor
failure
(burned,
pitted
or open)
Check wiring
and connectors
between
supply
and
compressor
Check for low pilot voltage
at compressor
contactor
coil
4.
High pressure switch
is open and requires
manual
reset
5.
Open circuit
in compressor
supply
wlnng
or
connections
6.
Unusually
long compressor
protector
reset time due to
extreme
ambient
temperature
7.
Compressor
windings
are damaged
Check compressor
motor
winding
resBtance
1.
Run capacitor
has failed (may not be bad, verify)
2.
Open circuit
in compressor
start wiring
or connections
Check winng
and connectors
between
supply
and
the compressor
"S'" terminal
3.
Compressor
start winding
is damaged
Check compressor
motor
winding
resistance
1.
Open circuit
in compressor
run wlnng
or connections
Check wiring
and connectors
between
supply
and
the compressor
IIR" terminal
2.
Compressor
run winding
Is damaged
Check compressor
motor
winding
resistance
1.
Compressor
contactor
has failed closed
2.
Thermostat
demand
signal
not connected
to module
1.
Control
circuit
transformer
is overloaded
2.
Low line voltage
(contact
utility
if voltage
at disconnect
Is low)
Check wiring
connections
Flash Code number
corresponds
to a number
of LED flashes, followed
by a pause and then repeated.
TRIP and ALERT LEDs
flashing
at same time means control
circuit
voltage
is too low for
operation
35

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