Question about Refrigerators
hesr are several possible solutions i was able to get ideas for you ok
best regards michael
check and see if the fill tube is frozing. mayying times that freeze.
I have a GE side - icon1.gif Quote: ..if this does not work check the optic board sunds like the problem is a bad PC optic boards because power to the ice maker comes through theses boards.
- The PC board kit Part number: AP3137510
Posted on Sep 12, 2009
The main reasons this icemaker goes into fault mode are:
ELECTRONIC CONTROL BOARD AND INTERNAL COMPONENTS — The Electronic Control Board is secured by three Phillips screws within the control housing. All wiring uses plug-on terminals. The electronic control board contains two hall effect sensors (similar to electronic reed switches) which are activated by one magnet attached to the end of the ejector arm to determine if the motor has reached the “home” position and one magnet attached to the sensing arm to determine if the “feeler” or sensing arm has reached the fully extended position. (Ice has not prevented it from moving outward to the fully extended position).
THE SENSING ARM OR “PADDLE” moves laterally or horizontally (not up and down)
THE THERMISTOR is mounted in the mold body directly behind the control housing. It has two functions: 1) to measure ice temperature during freezing, 2) to determine water level during the fill cycles. (This icemaker can have up to 3 fill cycles: 1st fill is 5.1 seconds, 2nd fill, if needed, is 2.5 seconds and 3rd fill, if needed, is 2.4 seconds) The thermistor is looking for a temperature in excess of 39.6°F (4°C) to terminate the fill cycles. Once this temperature is reached, or is exceeded, the icemaker will start the freeze cycle. If after the third fill, and the temperature has not reached 39.6°F, the control will override this requirement and the icemaker will automatically enter the freeze cycle.
THE FREEZE CYCLE is the period of time where the icemaker is waiting for the cubes to freeze solid. This is based on an algorithm programmed into the electronic control board. The electronic control board makes these calculations once per second and monitors the thermistors’ current or present resistance value as well as the rate of resistance change. This will take into account the various environmental conditions that vary the freeze times, such as control settings, door openings, room temperature, etc., but the average cycle is said to be 75 minutes to drop the 7 cubes in the icemaker mold.
THE HARVEST CYCLE begins when the freeze algorithm (programmed into the electronic control board) has been satisfied and the sensor arm is out or fully extended. If the arm is in the “in” position when harvest is to begin, a delay of 3 minutes will be added once the arm is moved to the extended position to allow for drawer type ice buckets to be removed for this amount of time without starting a harvest cycle. This 3 minute delay will begin again if the arm goes back to the “in” position anytime during the delay period. This arm is spring loaded to go to the “out” position unless it is being held in the “in” position by an obstacle such as an ice cube.
At the beginning of the Harvest Cycle, the mold heater will activate. One second later the motor will start. The heater will remain on until the mold temperature reaches 35.6°F (2°C) and a minimum of 20 seconds have elapsed. If necessary, the heater will cycle within a range of 32°F “cut in” to 35.6°F “cut out”.
To assure that the motor makes a complete revolution, the control checks to see if the motor is not “home” for at least 10 seconds and the sensor arm is “in” for at least 10 seconds. When the ejector then reaches the “home” position, this completes the harvest cycle and the motor will turn off. If the harvest cycle, which consists of one complete revolution, is not completed within 7 minutes, the control will assume that a cube is blocking the completion of the cycle and will initiate a “Harvest Fix Mode”. If the Harvest Cycle is not complete within 30 minutes, the electronic control board will assume some other problem occurred and will enter the “Fault Mode” which will cause the LED to start blinking in an 1/2 second “on” 1/2 second “off” pattern.
THE HARVEST FIX MODE occurs when the harvest cycle is not completed within 7 minutes, as mentioned earlier. This is achieved by raising the mold temperature to 68°F “cut off” temperature, with a 59°F “cut in” temperature. During this mode the motor will cycle off 10 seconds per minute of cycle time. If the motor reaches home position, a second revolution of the ejector will occur to verify that there is no more blockage. At this point, the control board will initiate another freeze cycle without a water fill to avoid a double shot of water from entering the mold. As mentioned earlier, the control will enter a Fault Mode if a harvest cycle (including a harvest fix mode) is not complete within 30 minutes.
POTENTIAL CAUSES FOR A HARVEST CYCLE TO TAKE LONGER THAN 30 MINUTES AND THUS ENTER A FAULT MODE (LED BLINKS):
Posted on Sep 12, 2009
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Posted on Jan 02, 2017
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