Installation Guide

Troubleshooting (cont.)
Air System
Symptoms Probable Causes Recommended Action
E. Control is shorted internally. E. Replace the control.
3. 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
user keypad to control is loose,
disconnected, or damaged.
B. Check wiring for proper
connections. Replace the wiring
harness if necessary.
C. User keypad does not work. C. Replace the 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.
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 ″User keypad is
illuminated, but does not respond
to icons or outer ring.″ and ″Blower
motor will not start.″
6. Blower motor starts, some
but not all airjets are
bubbling.
A. Blower motor speed is too low. A. Increase speed set point to blower
motor.
B. Blower air inlet is blocked. B. Clear blower air inlet.
C. Blower motor does not work. C. Replace the blower motor.
D. Blower motor discharge is
blocked.
D. Clear blockage.
E. Airjets are clogged. E. Use a small between-the-teeth
dental brush and white vinegar.
Dip the brush in the vinegar, brush
the hole, rinse the brush in clean
water, and then use the wet rinsed
brush to rinse the hole.
F. Some zones are closed. F. Operate all zones.
7. Blower motor runs but no
air bubbles are formed.
A. Blower air inlet is blocked. A. Clean blower air inlet.
B. Airjets are clogged.
B. Use a small between-the-teeth
dental brush and white vinegar.
Dip the brush in the vinegar, brush
the hole, rinse the brush in clean
water, and then use the wet rinsed
brush to rinse the hole.
C. Blower motor does not work. C. Replace the blower motor.
D. Control does not work. D. Replace the control.
8. Blower motor operates,
air bubbles are formed,
zone controls work, but
variable speed feature
does not work.
A. Blower air inlet is blocked. A. Clear blower air inlet.
B. Loose, disconnected, or
damaged wiring harness.
B. Check wiring for proper
connections. Replace the wiring
harness if necessary.
C. User keypad does not work. C. Replace the user keypad.
D. Blower motor does not work. D. Replace the blower motor.
E. Control does not work. E. Replace the control.
9. Blower motor won’t turn
off when the Power icon
on user keypad is
pressed.
A. User keypad does not work. A. Replace the user keypad.
B. Loose, disconnected, or
damaged wiring harness.
B. Check wiring for proper
connections. Replace the wiring
harness if necessary.
C. Control does not work. C. Replace the control.
1208018-2-D 16 Kohler Co.