First question, When was it properly cleaned? Most ice machine problems come from lack of or insufficient cleaning. Here is a copy of the operation manual to check;
https://download.partstown.com/is-bin/intershop.static/WFS/Reedy-PartsTown-Site/-/en_US/manuals/MAN-Q-Under-Counter-Series_iom.pdf
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Is the machine level? If not the ice deflector may not be returning at the end of cycle. telling the machine that the bin is full even when empty.
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Are the ice sheets normal with about a 1/8 bridge? If not the thickness sensor needs cleaning. This can also cause a lock out.
Safety lock outs occur from
60 min. freeze cycle.
f the harvest time reaches 3.5 minutes, the control board automatically returns the ice machine to the freeze cycle. 3 cycles outside the time limit = Safety Limit (must be MANUALLY reset).
You can determine which caused the lockout by looking at the control board before shutting off and restarting. harvest LED. It will be blinking. Watch it as you move the power switch to off, and back on. It will blink either 1 or 2 times. I is long freeze time. 2 is long harvest time.Â
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Oh yea, what is the ambient temp around the machine. They will not work well if cold.