Sub-Zero Refrigerator Water Tastes Like Plastic or... | appliancefaults.com

Technical Background:

Sub-Zero refrigerators use a complex system of water filtration and delivery. The water is filtered before being dispensed or used for ice production. The water filter and water lines are designed to be food-grade and inert. However, manufacturing residues, contaminants, or degradation of plastic components can affect water quality.

Symptoms:

The water dispensed from your Sub-Zero refrigerator tastes like plastic or chemicals. This can be a persistent issue or occur intermittently. Ice cubes may also have the same off-taste.

Possible Causes:

New water filter not properly flushed
Contaminated or old water filter
Plastic components leaching chemicals into the water line
Water line contamination from external source
Improperly sanitized ice maker components

Solution:

1

Turn off the refrigerator and locate the water filter housing.
2

Remove and inspect the water filter. Note the date of system. If older than 6 months, replace it with a new, genuine Sub-Zero filter.
3

If the filter is new, flush the water dispenser for 5 gallons (approximately 20 liters) to remove any manufacturing residue. Use a measuring cup to verify.
4

Disconnect the water line at the refrigerator's inlet valve using a 5/16-inch nut driver. Check for sediment or discoloration.
5

Sanitize the ice maker components by running a cleaning cycle according to the Sub-Zero user manual.
6

Reconnect the water line, ensuring a secure connection. Turn on the refrigerator and test the water dispenser.
7

If the taste persists, contact a qualified appliance technician.

Safety Warning:

Always disconnect power to the refrigerator at the breaker panel before performing any maintenance. Use Lock-Out Tag-Out (LOTO) procedures. The water inlet valve operates on 120V AC. Avoid contact with live electrical components.

Prevention:

Replace the water filter every 6 months, even if it doesn't appear dirty. Regularly flush the water dispenser. Sanitize the ice maker according to the manufacturer's instructions. Consider using a pre-filter on the main water line to the refrigerator.

Expert Tip:

Some Sub-Zero models have a diagnostic mode that allows you to manually cycle the water valve and ice maker. Consult the service manual for your specific model to access this mode and assist with troubleshooting.

Frequently Asked Questions

•How do I access the diagnostic mode on my Sub-Zero refrigerator?

The procedure varies depending on the model. Refer to your service manual or search online for your specific model number and 'service mode' instructions. Typically, it involves a sequence of button presses on the control panel.

•What type of water filter should I use for my Sub-Zero refrigerator?

Only use genuine Sub-Zero water filters. Aftermarket filters may not meet Sub-Zero's specifications and could damage the refrigerator or affect water quality.

•How do I sanitize my Sub-Zero ice maker?

Consult your user manual for the specific sanitization procedure for your model. Generally, it involves adding a cleaning solution to the ice maker bin and running a cleaning cycle.

Sub-Zero Refrigerator Water Tastes Like Plastic or Chemicals: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the diagnostic mode on my Sub-Zero refrigerator?

•What type of water filter should I use for my Sub-Zero refrigerator?

•How do I sanitize my Sub-Zero ice maker?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: