Installation Guide

Troubleshooting (cont.)
Bath System
Symptoms Probable Causes Recommended Action
1. Blower user keypad does
not illuminate when
Power icon is pressed or
the outer ring is rotated.
A. No power to control. A. Check wiring and connect power.
B. Ground-Fault Circuit-Interrupter
(GFCI) or Residual Current
Device (RCD) tripped.
B. Reset GFCI or RCD. If it trips
again, refer to ″Ground-Fault
Circuit-Interrupter (GFCI) or
Residual Current Device (RCD)
trips when bath is turned on.″
C. Wiring harness from blower
user keypad to control is loose,
disconnected or damaged.
C. Check wiring for proper
connections. Replace the wiring
harness if necessary.
D. Blower user keypad does not
work.
D. Replace the blower user keypad.
E. Control does not work. E. Replace the control.
2. Ground-Fault
Circuit-Interrupter (GFCI)
or Residual Current
Device (RCD) trips when
bath is turned on.
A. Electrical harness is wet or
damaged.
A. Check for wet connections. Dry the
connections and repair the leak.
Check for insulation or connector
damage. Replace the harness if
damaged.
B. Electrical wiring to the bath
junction box is wet or damaged;
or the power amperage is
inadequate.
B. Have a qualified electrician
diagnose and correct the problem
in accordance with applicable
building and electrical codes; or
increase the power amperage to 20
A.
C. Electrical wiring to the bath
power cord is wet or damaged.
C. Have a qualified electrician
diagnose and correct the problem
in accordance with applicable
building and electrical codes.
D. Blower motor is shorted
internally.
D. Replace the blower motor.
E. Control is shorted internally. E. Replace the control.
3. Blower user keypad is
illuminated, but does not
respond to icons or outer
ring.
A. Control program is locked. A. Reset GFCI or RCD.
B. P5 plug assembly harness from
blower user keypad to control is
loose, disconnected, or
damaged.
B. Check wiring for proper
connections. Replace the wiring
harness if necessary.
C. Blower user keypad does not
work.
C. Replace the blower user keypad.
D. Control does not work. D. Replace the control.
4. Blower motor will not
start.
A. Power cord from blower motor
to control is loose, disconnected,
or damaged.
A. Check wiring for proper
connections.
B. Blower motor does not work. B. Replace the blower motor.
C. Control does not work. C.
Replace the control.
5. Blower motor stops
running and will not
immediately restart.
Blower keypad is
illuminated.
A. Blower motor overheated and
protection device activated.
A. Check for blockage at air inlet.
Remove blockage and allow motor
to cool. Refer to ″Blower user
keypad is illuminated, but does not
respond to icons or outer ring.
Blower motor will not start.″
1204120-2-A 20 Kohler Co.