Kohler Bath Whirlpool K-812-H2 User Manual download pdf (Page 9)

Troubleshooting (cont.)

Symptoms Probable Causes Recommended Action

2. Motor starts, but all jets

are not functioning.

A. Jet is closed. A. Rotate jet trim counterclockwise to

open.

B. Jet not installed correctly. B. Reinstall jet; check for O-ring

damage.

C. Jets are blocked. C. Remove blockage.

3. User keypad is

illuminated, but does not

respond to buttons or

outer ring.

A. Control program is locked. A. Reset GFCI or RCD.

B. Wiring harness from user

keypad to control is loose,

disconnected or damaged.

B. Check wiring for proper

connections. Replace wiring

harness if necessary.

C. User keypad does not work. C. Replace user keypad.

D. Control does not work. D. Replace control.

4. User keypad indicator bar

keeps scanning at

power-up.

A. Control program is locked. A. Reset GFCI or RCD.

B. Wiring harness from user

keypad to control is loose,

disconnected or damaged.

B. Check wiring for proper

connections. Replace wiring

harness if necessary.

C. User keypad does not work. C. Replace user keypad.

D. Control does not work. D. Replace control.

5. User keypad is

illuminated, but pump

won’t start.

A. Power cord from pump to

control is loose, disconnected or

damaged.

A. Check wiring for proper

connections.

B. Pump does not work. B. Replace pump.

C. Control does not work. C. Replace control.

6. Motor runs but pump

won’t prime (cavitates).

A. Pump is shimmed too high. A. Lower pump/control to subﬂoor

level.

B. Small air leak at pump inlet. B. Securely tighten nut(s) on intake

side of pump.

C. Motor/pump does not work. C. Replace motor/pump.

D. Control does not work. D. Replace control.

7. Pump stops before 18

minutes.

A. GFCI or RCD tripped. A. Identify source of fault, and correct.

Reset GFCI or RCD.

B. Suction is blocked. B. Remove obstruction.

C. Jets are blocked. C. Remove blockage.

D. Motor overheated and

protection device activated.

D. Check for blockage at suction

and/or jets. Remove blockage and

allow motor to cool.

8. Pump does not

automatically stop after 22

minutes.

A. 20-minute timer inadvertently

disabled.

A. See service manual.

9. Pump won’t turn off

when the power button

on user keypad is

pressed.

A. User keypad does not work. A. Replace user keypad.

B. Control does not work. B. Replace control.

10. Pump operates but

variable speed feature

does not work.

A. Motor/pump does not work. A. Replace motor/pump.

B. Control does not work. B. Replace control.

11. Bath water cools while

pump is operating.

A. Water temperature above 104°F

(40°C).

A. Allow bath water to cool.

Kohler Co. 9 1019460-5-C

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Kohler Bath Whirlpool K-812-H2 User Manual Page 9

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