What LO Means
LO is the opposite of HI — the zone is running colder than its set point long enough to trigger an over-cooling alert, which risks the zone dropping toward freezing for whites stored at the low end of their range.
Common Causes of LO
- Zone temperature setting was changed lower than intended
- Temperature control circuit has failed, over-driving the compressor for that zone
🔧 One Safe Check You Can Try
Check the zone's temperature setting hasn't been bumped lower than intended, since this is sometimes a settings issue rather than a fault.
⚠ Why You Shouldn't Go Further Than That
- If the setting is correct and LO persists, a stuck-on compressor circuit needs a technician to diagnose.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.