Troubleshooting (cont.)
User Keypad and Pump
Symptoms
3. User keypad indicator bar
keeps scanning at
power-up.
4. User keypad is
illuminated, but pump
will not start.
5. Motor runs but pump will
not prime (cavitates).
6. Pump stops before 18
minutes.
7. Pump does not
automatically stop after 22
minutes.
8. Pump will not turn off
when the power button
on user keypad is
pressed.
9. Pump operates but
variable speed feature
does not work.
10. Bath water cools while
pump is operating.
11. Noisy operation.
Kohler Co.
All manuals and user guides at all-guides.com
Probable Causes
A. Control program is locked.
B. Wiring harness from user
keypad to control is loose,
disconnected or damaged.
C. User keypad does not work.
D. Control does not work.
A. Power cord from pump to
control is loose, disconnected or
damaged.
B. Pump does not work.
C. Control does not work.
A. Pump is shimmed too high.
B. Small air leak at pump inlet.
C. Motor/pump does not work.
D. Control does not work.
A. GFCI or RCD tripped.
B. Suction is blocked.
C. Jets are blocked.
D. Motor overheated and
protection device activated.
A. 20-minute timer inadvertently
disabled.
A. User keypad does not work.
B. Control does not work.
A. Motor/pump does not work.
B. Control does not work.
A. Water temperature above 104°F
(40°C).
B. Heater is turned off on user
keypad.
C. Wiring from heater to control is
loose, disconnected or damaged.
D. Heater does not work.
E. Control does not work.
A. Pump banding straps have not
been cut.
B. Dry or dislodged jet O-ring
(squeal).
11
Recommended Action
A. Reset GFCI or RCD.
B. Check wiring for proper
connections. Replace wiring
harness if necessary.
C. Replace user keypad.
D. Replace control.
A. Check wiring for proper
connections.
B. Replace pump.
C. Replace control.
A. Lower pump/control to subfloor
level.
B. Securely tighten nut(s) on intake
side of pump.
C. Replace motor/pump.
D. Replace control.
A. Identify source of fault, and correct.
Reset GFCI or RCD.
B. Remove obstruction.
C. Remove blockage.
D. Check for blockage at suction
and/or jets. Remove blockage and
allow motor to cool.
A. See service manual.
A. Replace user keypad.
B. Replace control.
A. Replace motor/pump.
B. Replace control.
A. Allow bath water to cool.
B. Turn heater on.
C. Check wiring for proper
connections.
D. Replace heater.
E. Replace control.
A. Cut pump banding straps with tin
snips.
B. Remove jet, replace and lubricate
O-ring, and reinstall jet.
1023246-5-C