Question about Scotsman Ice Maker 600LB CM3 30inW Commercial Cubed Machine

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How do I fix the max harvest time shutdown - Scotsman Ice Maker 600LB CM3 30inW Commercial Cubed Machine

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  • Walter Kunesky
    Walter Kunesky May 21, 2011

    I can help what is the problem?

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The ice sensors are not sensing the ice fall.Wave your hand in front of them the bin full light should blink.If it doesnt clean eyes and conectors.If it still doesnt blink change them they are bad.

Posted on Apr 20, 2012

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Posted on Jan 02, 2017

jumptrout51
  • 3361 Answers

SOURCE: Ice Machine will not come out of harvest. There is

The door switch is most likely not resetting.

Posted on Jan 05, 2010

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Scotsman icemachine constantly freezing up no matter how small you put the setting?


Max harvest cycle just keeps it in a harvest longer. if you set the freeze setting to its lowest point and ice is still to thick then replace the freeze stat.

Feb 22, 2015 | Scotsman Ice Machine, Cuber, 1930 lb....

1 Answer

Sce170a-1a wont harvest


This machine has a cube size control. Which tells the machine when to go into a harvest. there is a harvest switch did you try to force it into a harvest and if you did, did it harvest. depending on ambient temperature from start of freeze cycle to harvest it should be making ice every 15 to 18 minuets and then go into a harvest. so start the ice machine and time it , run it for 18 minuets and force into a harvest. after ice drops check the ice bridge thickness. Bridge thickness should be about 3/16'' the ice dimple must not be DEEPER than 1/16". If this is good then we need to look at what is not working to harvest ice. The cube size control is a reverse - acting thermostat that controls the start of the timed freeze cycle. It must be set properly to prove the correct size cube bridge. When it is closed, an indicator light on the control board will be on. If you force it into a harvest and it harvest the ice with no problems and the ice is at the right thickness then replace the cube size control, but if dose not harvest the ice and you see the ice is at a good thickness and not to thick because if it is to thick it will freeze to every thing and will not drop. SYMPTOM. Unit freezes, but will not try to harvest. POSSIBLE CAUSE: Cube size control will not close; to check: Unplug water pump, switch unit OFF and then ON, in about 2 minutes the timed freeze light on the control board should be ON. PROBABLE FIX: If timed freeze light does not go ON, replace cube size control. SYMPTOM #2: Timed freeze light glows, but after 4 minutes unit dose not power hot gas nor purge valves Then replace control board.

Dec 15, 2013 | Scotsman Ice Maker CM3 30inW Cubed Ice...

1 Answer

Ice machine harvest two times and shut off


These unit time freeze time and harvest times and keeps track of them. If your freeze time exceeds 35 minutes or harvest time exceeds 3 minutes, it will place unit in lockout. The biggest cause for excessive time to harvest is the harvest valve not functioning properly, and undercharged unit or a dirty condenser. The most probable cause is a dirty condenser. Under charged units can be determined by checking compressor outlet temperature while running, it should be 150 to 190 degrees depending on atmospheric conditions present. If it is harvest valve, the downstream temperature will stay at or near compressor discharge temperature. It should cool down to ambient temperature in a few minutes after freeze cycle begins.

Nov 25, 2013 | Scotsman Ice Maker 600LB CM3 30inW...

1 Answer

Scottman cu3030 max harvest-retrying, flashing code #2


The machine will try to harvest 3 times before it shuts the machine down. Is the ice thick enough to open the curtain door? if the curtain dose not open the magnet switch then the machine dose not know it has harvested the ice and will keep trying to harvest. Is the ice coming off the evaporator plate during harvest or is it hung on the plate? if hanging on the plate then system needs to be cleaned. is the harvest assist plunger working?

Oct 30, 2013 | Scotsman Refrigerators

1 Answer

Max harvest retrying


Likely cause,
1. Ice bridge thickness too small, not enough ice to open curtain.
Solution, Check and adjust if needed.
2.Ice bridge thickness too large, ice frozen to evaporator frame.
Solution, Check and adjust if needed.
3. Purge valve dose not open, water melts ice bridge, not enough ice to open curtain.
Solution, Check purge valve.
4. Incomplete ice formation.
Solution, check water distribution for partially plugged holes.
5. Curtain out of position.
Solution, check curtain for swing restriction.
6. Curtain switch dose not open when curtain does.
Solution, Check switch with ohmmeter.
7. Machine in very cold ambient area.
Solution, Move machine to warmer location.
8. Hot gas valve dose not open.
Solution, Check hot gas valve, check controller using test mode.
9. Harvest assist probe out of position - ejector pin not retracted.
Solution, check harvest assist mechanism-spring should retract pin.
10. Damaged evaporator.
Solution, Check evaporator surface now would be a good time to make sure evaporator plate is not dirty this will cause ice to hang up on evaporator plate also check plate to make sure all cross points are not loose.
11. Fan motor stays on during harvest.
Solution, check controller using test mode.

Jul 18, 2013 | Scotsman HD22B-C0322MA-1B Hotel / Motel...

1 Answer

SCOTSMAN MODEL #CME506WS1F


You need to descale the water circuit according to manufactures instructions. Scale build up keeps the ice from releasing during harvest cycle. If overall ice thickness is to thick, rotate the ice bridge thickness screw at the top of the platen countercloclwise about 1/8 of a turn max between freeze cycles until desired thickness obtained. If you do not know the correct descale solution alway use a nickel safe descaling solution.

Dec 03, 2012 | Scotsman Ice Maker WBin Flake Style water...

1 Answer

Scottsman prodigy icemaker max harvest time codes-common causes.


my prodigy periodically flashes 2 which indicates slow harvest what does this mean?, is it common for time to time to flash 2, how do I correct it

Mar 14, 2012 | Scotsman Prodigy Air Cooled Cuber C0330SA...

1 Answer

It says harvest time maxed and no ice detected what tells machine to stop havest


Hi and welcome to FixYa, I am Kelly.

Download this manual and read page 19 carefully.

http://www.scotsman-ice.com/docs/uploaded/sct/manual/275m.pdf

I think you have a thermistor problem. But... there are several things that will cause the 8 minute max harvest time error. See the diagnostic lights chart on page 19.

Diagnostic Lights:

There are two RED diagnostic lights, one to indicate a water problem, and the other to indicate a refrigeration problem.

Both On all the time / Check for thermistor set unplugged or failed


Additionally see the troubleshooting chart on page 27 "Unit OFF for a harvest problem"


Also make sure to read page 15. The thermistor inputs are on connector #5 left side of the controller


Resets:

Note: The machine may be reset and restarted by

pushing and releasing the Off push button switch,

and then pushing and releasing the freeze push
button switch.

Lastly after a RESET read the initial start up procedures on page 12 right side with regards to the harvest cycle steps 1 - 8.

Thanks for choosing FixYa,
Kelly


Mar 10, 2011 | Scotsman Ice Machine - 290lb...

1 Answer

English instructions for saivod fhs186 ice maker


DO THE BASICS:
Change the water filter
Add ice machine cleaner and go by the directions.
What should be kept clean?
There are 5 things to keep clean:
1. The outside cabinet & door.
2. The ice storage bin.
3. The condenser.
4. The ice making system.
5. The ice scoop.
The ice storage bin should be sanitized
occasionally. It is usually convenient to sanitize the
bin after the ice making system has been cleaned,
and the storage bin is empty.
A sanitizing solution can be made of 1 ounce of
household bleach and two gallons of hot (950F. -
1150F.) water. Use a clean cloth and wipe the
interior of the ice storage bin with the sanitizing
solution, pour some of the solution down the drain.
Allow to air dry.

How to clean the condenser.
The condenser is like the radiator on a car, it has
fins and tubes that can become clogged. To clean:
1. Remove the kickplate.
2. Locate the condenser surface.
3. Vacuum the surface, removing all dust and lint.
Caution: Do not dent the fins.
4. Replace the kickplate.
Winterizing
1. Clean the machine as explained on the next
page.
2. Turn off the water supply.
3. Drain the water reservoir. See page 24, Spray
Pump Repair and follow the instructions to remove
the pump hose (step 2, bottom hose only).
4. Disconnect the incoming water line at the inlet
water valve.
5Remove control box cover and turn the timer
into the harvest cycle.
6. With the machine operating, blow air through
the inlet water valve; a tire pump could do the job.
7. Drain pump models should have about 1¤2 gallon
of RV antifreeze (propylene glycol) poured into the
ice storage bin drain.
Note: Automotive antifreeze must NOT be used.
8. Replace control box cover. Switch off and
unplug the machine.

CUBE ADJUSTMENTS
There are three items that may be adjusted: Cube
Size, Harvest Time, and Bin Level. Note: Cube
Size and Harvest Time adjustments should only be
done by a qualified service person.
Cube size control.
The cube size control should only be adjusted to
bring the cubes to the correct shape, the overall
size cannot be adjusted. Try to adjust the cube
size control when the ice machine is in the harvest
cycle, or in the first 10 minutes of the freeze cycle.
1. Open the door and remove the control box
cover.
2. Locate the cube size adjustment screw, and to
make fuller cubes, turn the screw clockwise about
1/4 turn. This will make the freezing cycle longer.
3. To shorten the freezing cycle and make cubes
that are not as full, turn the adjustment screw 1/4
turn counterclockwise.
4. After the next freezing cycle, the cubes should
have responded to the adjustment, if another
adjustment is required, do it early in the freeze
cycle.


Diagnostic Codes
Code Description
F - - - - - - - Freeze Cycle
F flashes- - - - Freeze Cycle is Pending
H - - - - - - - Harvest Cycle
H flashes- - - - Manual Harvest
b - - - - - - - Bin is Full
C - - - - - - - Clean Cycle
L - - - - - - - Board Locked
d - - - - - - - Test Mode
O - - - - - - - Off
E - - - - - - - Self Test Failed
1 flashes- - - - Max Freeze - Retrying
1 - - - - - - - Max Freeze Time Shut Down
2 flashes- - - - Max Harvest - Retrying
2 - - - - - - - Max Harvest Time Shut Down
3 - - - - - - - Slow Water Fill
4 - - - - - - - High Discharge Temp
5 - - - - - - - Sump Temp Sensor Failure
7 - - - - - - - Discharge Temp Sensor Failure
8 flashes - - - Short Freeze - Retrying
8 - - - - - - - Short Freeze - Thin ice
All 4 Upper Lights Flashing - Unit Remotely Locked Out

Jul 14, 2010 | Scotsman Ice Maker CM3 30inW Cubed Ice...

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