Troubleshooting - Sub-Zero PRO 48 Use & Care Manual

TROUBLESHOOTING

Troubleshooting
UNIT OPERATION
No lights or cooling.
• Verify power is on.
• Verify electrical power to unit and home circuit breaker
is on.
No lights in refrigerator or freezer.
• Door may have been left ajar which has disabled lights
to eliminate excess heat. If lights are out, close door for
one hour. If lights are still out, contact Sub-Zero factory
certified service.
• LED interior lighting must be replaced by Sub-Zero
factory certified service.
Frost, condensation or ice build up inside unit.
• Verify condenser is clean.
• Verify door/drawer is closing properly.
• Verify door/drawer has not been left ajar.
• Verify door/drawer gasket does not have rips or tears. If
it does, contact Sub-Zero factory certified service.
• If icing is heavy, turn unit off and use a hair dryer to melt
ice. Hair dryer should be set on low and kept moving
at all times. Once ice has melted, wipe up water with a
cloth or paper towel.
High temperatures, unit runs excessively or unit giving off
too much heat.
• Verify condenser is clean.
• Verify door/drawer is closing properly.
• Verify door/drawer has not been left ajar.
• Increased ambient temperatures may cause compres-
sors to run longer.
• If temperature display shows 38° and 0°, but is not
cooling, unit may be in showroom mode. Contact
Sub-Zero Customer Care at 800-222-7820.
ICE PRODUCTION
No ice.
• Verify appears in freezer external display.
• Verify ice maker has been on for at least 24 hours.
• Verify freezer temperature near 0°F.
• Verify ice container is properly installed.
• Verify ice maker arm in down position.
• Verify water is being supplied to unit.
• Verify water filter has been replaced within the last 12
months and installed properly.
• Verify water filter has been removed if a reverse osmosis
filtration system is being utilized.
• Verify is not flashing. If flashing, contact Sub-Zero
factory certified service.
Blue or green ice.
• Possible copper supply line corrosion. Contact plumber
to clean or replace.
Black flecks in cubes.
• Stop use and contact Sub-Zero factory certified service.
Bad taste.
• Defrost freezer and clean with soap and water.
• Place coffee grounds or charcoal briquettes in freezer to
absorb odor.
Hollow cubes.
• Clean condenser. Contact Sub-Zero factory certified
service if unresolved.
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