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67
TROUBLESHOOTING GUIDE - CONTINUED
SYMPTOM
PROBABLE CAUSE
N. (2-Motor) High or low speed is too slow.
Belt tension spring broken or loose.
Loose pulley.
Motor voltage too low.
Belt worn out.
Defective motor.
O. (Inverter w/Single Motor) Motor in Wash
Step. Will not start.
Door not properly closed or safety switch not re-
leased. Check for obstructions, check safety door
switch.
P. (Inverter w/Single Motor) Motor in Extract
Step. Will not start.
Motor overload, variable frequency drive overload.
Reset Drive, measure motor / drive current.
Q. (Inverter w/Single Motor) Will not start and no
error appears either on operator panel or drive
display panel.
Extract relay operates but no drive response,
drive displays a frequency but no motor response.
Check circuit from PLC to terminals on drive. Mo-
tor leads disconnected or loose. Check connec-
tions from drive to motor.
R. (Inverter w/Single Motor) Will not accelerate. Low line voltage, check line voltage, do not exceed
load rating of machine.
Extract step programmed incorrectly, reduce load if
material is very water absorbent.
Loss of speed command voltage at terminal
drive, check DC voltage between points D/A CHø
VO+zero and less than 10 VDC for the drive to ac-
celerate the motor.
S. (Inverter w/Single Motor) Accelerates too
fast.
Acceleration parameters of drive or control is set
incorrectly. Check parameters for agreement with
factory settings.
T. (Inverter w/Single Motor) Motor overheating. Line voltage low, low voltage puts extra strain on
motor.
Faulty or incorrect type of motor, check nameplate
for proper motor type and size.
Load too heavy, reduce load keep within rating of
machine.
U. Excessive vibration.
Mounting bolts loose.
Laundry load not balanced.
V. Water fill valve fails to close.
Foreign material in fill valve.
Defective level switch.
Verify configuration settings for water levels.
W. Water does not maintain its level.
Material in drain valve holding it open. Check drain.
Air leaking between the pressure bowl and the
pressure transducer. Verify connections are tight.
X. Door does not open.
Too much water in cylinder.
Time delay after extract not complete.
Defective door pin solenoid or control relay.
Brokenwire or bad connection.
Y. Door does not close properly.
Damaged door.
Door seal not seating properly.