Kohler K-856-AH Guide De Propriétaire page 14

Troubleshooting (cont.)
User Keypad and Pump
Symptoms
2. Motor starts, but all
jets are not
functioning.
3. User keypad is
illuminated, but does
not respond to
buttons or outer ring.
4. User keypad
indicator bar keeps
scanning at
power-up.
5. User keypad is
illuminated, but
pump will not start.
6. Motor runs but
pump will not prime
(cavitates).
7. Pump stops before
18 minutes.
8. Pump does not
automatically stop
after 22 minutes.
9. Pump will not turn
off when the power
button on user
keypad is pressed.
10. Pump operates but
variable speed
feature does not
work.
11. Bath water cools
while pump is
operating.
1023275-5-C
Probable Causes
A. Jet is closed.
B. Jet not installed correctly.
C. Jets are blocked.
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. 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.
Recommended Action
A. Rotate jet trim counterclockwise to
open.
B. Reinstall jet; check for O-ring damage.
C. Remove blockage.
A. Reset GFCI or RCD.
B. Check wiring for proper connections.
Replace wiring harness if necessary.
C. Replace user keypad.
D. Replace control.
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.
14 Kohler Co.