An ice machine control board failure is a common issue that can lead to several problems. The control board manages all the machine’s functions, including water flow, temperature regulation, and ice production cycles. If the control board is faulty, it may need to be replaced, which can restore the machine’s performance. Regular maintenance and power surge protection can help prevent control board failure and extend the life of your ice machine. Learn more about our ice machine repair services:
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Main Issues If Ice Machine Control Board Failure
Description and Troubleshooting of Problems
The Control Board Is Not Functioning Correctly
The control board in an ice machine manages all the functions necessary for proper operation. If the control board malfunctions, it can disrupt specific cycles, fail to recognize a sensor, trigger an error code, or even halt the machine entirely. Common causes of control board failure include power surges, a faulty component shorting out the board, water or condensation damage, or poor power connections. Depending on the brand and model, error notifications may differ: modern machines typically display error codes, while older models may stop operating and signal issues using LED indicators on the board. In some cases, specific components of the control board, such as relays, capacitors, or fuses, may fail due to a power surge. When this happens, the board might cease functioning entirely without showing an error.
The Control Board Is Not Working Due to a Power Surge
This is a very common issue, especially during storms, hurricanes, or heavy rains when the power suddenly goes out or cycles off and back on within seconds. These situations often cause power surges, which can damage the control board. To prevent this, we recommend turning off the power during such events, waiting until the situation stabilizes, and only then restoring power. This precaution can help protect your ice machine and keep it running smoothly.
Power Issue
We often see situations where an ice machine partially starts but does not function correctly, and the cause can be insufficient power from the outlet. For example, an ice machine may require 120W to operate properly, but if it only receives 85W, the display might work, and some processes might begin, but the machine won’t function as it should. This issue could be due to a problem with the circuit breaker not fully engaging, leading to unstable voltage in the power supply.
Error Codes on the Display
Most ice machines are equipped with a diagnostic code system to indicate issues with specific components. These codes might appear as blinking patterns on the display or LED lights on the control board. While not always perfectly accurate for self-diagnosis, these codes provide critical insights for technicians. For example, an error might indicate delayed ice production or incorrect temperature. However, the root cause could range from a faulty temperature sensor providing inaccurate readings, to a compressor failing to create adequate pressure, or even a control board misinterpreting sensor data. Proper diagnosis is essential, as the actual issue might also involve the harvest sensor or other components. Only after a thorough inspection can we pinpoint and address the exact cause of the ice machine’s malfunction.
Repair Cost
| Control board replacing | $380 – $480 |
| Replacing the fuse on the control board | $350 – $480 |
| Error codes repairing process | $220-$580 |
The price to repair an ice machine depends on factors such as the make and model, as well as the severity of the issue.
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14 Comments
The error code on my Sub-Zero ice machine is EC40. Could you please tell me what it means and if there is anything I can do to fix it myself?
The EC40 error code on your Sub-Zero ice machine typically points to a water supply issue, like a clogged filter or malfunctioning water valve. While you can replace a clogged filter yourself, it’s best to have a professional inspect and repair the machine if the issue continues. This prevents further damage and ensures proper functioning.
Can you come to Bradenton to repair my ice machine?
Yes, we can definitely come to Bradenton to repair your ice machine. Just let us know a convenient time, and we’ll schedule a visit.
Please, visit this page: https://appliancerepairteodor.com/contacts/
My Hoshizaki ice machine is showing an E21 error but is still making ice. Should I be concerned?
The E21 error on Hoshizaki ice machines is typically related to issues with the freeze or ice harvest cycle. While the machine may continue to operate, this could lead to reduced efficiency or potential damage over time. We recommend having a technician inspect and address the issue.
If the control board is damaged due to a power surge, is it enough to simply replace the fuse, or do you need to replace the entire board?
Hi Lone! No, simply replacing the fuse may not be sufficient. Power surges often damage not only the fuses but also other components of the board, such as relays, capacitors, or even the microchip itself. If important components of the board are damaged, a full replacement of the board will be necessary. To accurately determine if other components of the board are damaged, it’s recommended to perform a diagnostic check with a professional who can inspect all parts of the control board and other machine components.
What should I do if the control board failed again just a month after replacement?
Hi Ethan! If the new board burned out that fast, something else in the machine is likely causing the issue — like a bad fan motor, pump, or even unstable power. You’ll need a full diagnostic to find the real cause, otherwise you’ll just keep burning through boards.
How long does it take to replace an ice machine control board?
Hi Matthew! If the part’s in stock, the swap usually takes about 1–2 hours tops. But if the tech needs to order the board, you’re looking at a couple days wait for the part plus the install time.
Is it worth installing a surge protector or UPS to protect the control board?
Hi Andrew! Definitely. It can save your machine during storms or voltage spikes. It’s a small investment that can stop you from blowing another $400+ on a new board.