SRL
--
1200 --- SRL
--
6000 (60Hz)
6
English
7
Troubleshooting
Z
Compressor
noisy
yes
Compressor
components
deteriorated
CP
compressor
thermal protec-
tion alarm
Compressor
winding
with partial
loss of
insulation
Repair or
replace
compressor
Z
no
Condenser
dirty or
obstructed
yes
Clean
condenser
yes
Lt Low evaporation temperature alarm
Ld Low dew point alarm.
Fan
always
working
(PV pressure
switch fault)
no
Low
cooling
air
temperature
Increase
cooling air
temperature
yes
Excessive thermal load
(air flow, inlet temperature)
Ht
High
temperature
alarm
no
yes
no
Hot gas
valve
not calibrated
Replace
pressure switch
Z
yes
Calibrate
valve
Z
yes
no
no
no
yes
High
dew point
warning
HP
high pressure
alarm
no
Fan
pressure switch
(PV) not set
Replace
pressure switch
Z
yes
no
Low
current
absorption
No
refrigerant.
Recharge
Z
yes
no
Request external assistance
Decrease
compressed
air quantity
temperature
yes
no
Condenser
dirty or
obstructed
Clean
condenser
yes
no
Low
current
absorption
Replace
pressure switch
Z
no
yes
Excessive
thermal load
(inlet air flow,
temperature)
no
no
yes
Condenser
dirty or
obstructed
Fan
does not turn
(PV pressure
switch fault)
Replace fan
Z
Fan
fault
no
no
no
yes
yes
yes
Cooling
air
high
temperature
Decrease
cooling air
temperature
Cooling
air
high
temperature
LP Low
pressure
alarm
no
LP
Low pressure
switch fault
Replace
pressure
switch
Z
yes
FAULT
CAUSE
REMEDY
Liquid line
solenoid valve
closed
no
Replace
the coil
Z
yes
