Sub-Zero Refrigerator Error Code CL: Clean Condenser... | appliancefaults.com

Technical Background:

The Sub-Zero's main control unit (MCU) monitors the condenser temperature. The 'CL' code is triggered when the unit calculates run time versus condenser temperature thresholds. These thresholds are intended to remind the user of routine condenser coil maintenance. The MCU sends voltage to the condenser fan. If temperature or fan performance readings are out of range after a set period, the CL error is shown.

Symptoms:

The Sub-Zero refrigerator displays a 'CL' error code. The unit may be running warmer than usual, or the compressor may be running excessively.

Possible Causes:

Dirty condenser coils restricting airflow.
Failed condenser fan motor.
Faulty temperature sensor near the condenser.
Software glitch in the main control board (MCU).
Wiring harness issue between the condenser fan and the MCU.
Restricted airflow around the refrigerator.

Solution:

1

Disconnect power to the Sub-Zero refrigerator at the breaker panel (LOTO).
2

Locate the condenser coils (typically behind a lower access panel or at the top).
3

Use a condenser coil brush or vacuum cleaner with a brush attachment to thoroughly clean the condenser coils. Remove all dust and debris.
4

Inspect the condenser fan motor for proper operation. Manually spin the fan blade – it should rotate freely. If it doesn't, or if it's noisy, replace the fan motor.
5

Check the voltage to the condenser fan motor with a multimeter (typically 120V AC). If no voltage is present, trace the wiring back to the main control board.
6

After cleaning and inspection, reconnect power to the refrigerator.
7

Reset the 'CL' error code according to the Sub-Zero user manual (usually involves pressing and holding a specific button combination). If unsure, consult the manual for instructions.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any maintenance or repairs. Use proper Lock-Out Tag-Out (LOTO) procedures. High voltage components are present inside the unit.

Prevention:

Clean the condenser coils every 6-12 months using a condenser brush or vacuum with a brush attachment. Ensure adequate airflow around the refrigerator.

Expert Tip:

After cleaning the condenser coils and resetting the code, monitor the condenser fan motor for a few days to ensure it's running smoothly and that the 'CL' code doesn't reappear. Sometimes, a second cleaning is required. Sub-Zero service mode can often provide more detailed diagnostics on fan motor operation and temperature readings. Consult the service manual for entry instructions, which usually involve a specific button sequence.

Frequently Asked Questions

•How do I access the condenser coils on my specific Sub-Zero model?

Refer to your Sub-Zero model's service manual. Generally, they are located behind a kick plate or service panel at the bottom front, or on top of the unit. You might need a 1/4-inch nut driver or a Phillips head screwdriver.

•What voltage should I expect to see at the condenser fan motor?

Typically, the condenser fan motor will operate on 120V AC. Use a multimeter to measure the voltage across the fan motor terminals. If you're not comfortable working with electricity, contact a qualified technician.

•Where can I find a replacement condenser fan motor for my Sub-Zero refrigerator?

You can purchase replacement parts from authorized Sub-Zero parts distributors, appliance parts retailers, or online retailers. Have your model number handy when ordering to ensure you get the correct part.

Sub-Zero Refrigerator Error Code CL: Clean Condenser Reset Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the condenser coils on my specific Sub-Zero model?

•What voltage should I expect to see at the condenser fan motor?

•Where can I find a replacement condenser fan motor for my Sub-Zero refrigerator?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: