Customer Questions and Answers for Limit Switch by Whirlpool

Hello Dgarcia, at the top of the dispenser there is a half-moon cover that will slide upward and expose the mounting screw, once the screw is removed the dispenser assembly can be pulled out of the liner wall and the limit switch is on the back side,

Hello Joge, the dispenser switch is part WP12575501.

Hello Martha. You will need to check the micro switch in the dispenser and see if it is bad and will need to be replaced on the unit.

Bill, It's not going to be either, most likely. You'll want to start at the filter head assembly WP67004106 when you inserted the first filter, the bypass mechanism inside the assembly was damaged and won't let the water flow through the filter and down to the reservoir. Even though you insert the correct filter, the damage is done and still wont work.

Hello Jimmy. It sounds like the actuator pad 12593203B may be bad. However, you will need to check the limit switch in the unit. The pad has been permanently discontinued by the manufacturer and we don't know of any source or replacement for the part.

Hello Cliff, This is either a stuck micro-switch WP12575501 or a bad relay on the control board WP67003817.

Hello Dave. Make sure the water is turned on. If so, then it sounds like the water valve WP67006531 will need to be replaced on the unit.

Hello Tony. Yes, it sounds like the water valve may need to be replaced on the unit. If it is leaking, you will need to order and replace the valve on the unit. This is not to hard to replace and is accessed on the back of the unit.

Hi Tom. Dispenser Function. 1. The dispenser allows serving ice and water without opening the door. 2. Pressing the dispenser switch dispenses crushed or cubed ice or water. If ice is selected, the switch operates the door solenoid also. The door will close 5 seconds after the ice is dispensed. 3. If the freezer door is opened, the dispenser is deactivated. 4. If there is no OFF signal 3 minutes after the ice dispenser is activated, the auger and door solenoid are turned off. The auger will stop immediately, but the door will not close for another 5 seconds.5. The dispenser lamp turns on automatically if the crushed/cubed/water button is pressed or if the dispenser button is pressed. It will turn off automatically shortly thereafter.6. Selection function of water/crushed/cube ice 1) Select crushed/cubed/water. The display will show your selection. 2) If you select cubed ice, the auger is rotated to dispense cubes. 3) If you select crushed ice, the auger is rotated in the opposite direction to direct the cubes through the crusher.7. Water dispenser function 1) If you select water, the display will indicate water. 2) The water dispenser uses a solenoid connected directly to the water pipe. Pressing the dispenser switch operates the solenoid, which is at the right side of the back plate. All this numbered steps are out of the LG service manual. Tape the freezer door light switch shut. Make sure the wires are connected to it clean and tight and it interrupts the controls with the door open. Tape the door switch shut. Disconnect the auger motor connector and while pushing the ice actuator pad are you getting 120 vac to the motor ? IF so then the door switch is sending the voltage to the board. The actuator micro switch part # WP12575501 closes the circuit back to the fountain board and the auger motor gets the voltage from the wires connected to the board. You can ohm out both motor colors one at a time to the white (neutral wire) To see if the motor windings are OK. Ohm them out to the wire to the motor frame to insure the windings are not shorted to ground. (0-Ohms). The motor is part # WP67003226. The motor gears can freeze tight if the cavity demand temperatures are too cold.. Below -2°. It also uses a capacitor to allow the motor voltage to be efficient. If your meter does not have a capacitor scale, it can still be checked. Put the meter on R x 10,000 ohms. Checking the capacitor one direction of the leads will allow a pegged scale on a analog meter (Pointer scale). On a digital it will immediately reach 0-ohms (shorted), then it will bleed off slowly showing the capacitor good and finally reaching a "open". Then you reverse the leads and and a good capacitor reads open (not shorted). Make sure the capacitor is fully discharged before handling. It is part # WP65889-4. You can temporally connect the actuator paddle switch wires together to test and see if the motor now receives the 120 volts needed. Also you need the 120 volts on the opposite solid wire to the white wire as you also ask for crush. Just as you checked the blue and orange to the white wire ohmed individually, the same motor blue and orange wires need 120 vac to the white neutral wire each tested respectfully. Thank You.

Hi Tom. Look under the freezer top hinge cover at the wire connections. Unplug the connector and examine all pin connections to see if they are burnt or pushed out backwards out of the connector. If you have to bypass the connection, make sure that you use the correct or slightly larger wire size and have tight connections. Use a volt/ohm meter part #@ MA-DM1 to assist you in your diagnostics. Find the wiring diagram in the controls or the lower grill kick plate. Pop out the freezer door switch and see if the connections there are tight and the switch operates well. The 120 vac will come there on the red wire.This will tell you the wires from the fountain control board part # WP67004258 that sends the voltage to the auger motor part # WP67003226. Does the auger motor work in both directions as needed ? Beside the auger motor itself do you see a black capacitor part # WP65889-4 ? This may be the reason why the auger motor does not work. Be careful since all capacitors store electricity. Handle with gloves. Use a pair of needle nose pliers to momentarily discharge the capacitor terminals a few times to completely discharge it. If your ohm meter does not have a capacitor scale check it by putting the scale on R x 1 . The capacitor will read closed and slowly discharge down to open or infinity. The opposite way it will read open( infinity) too great of a area to measure. Thank You.