Independent appliance repair service. We are not affiliated with, authorized by, sponsored by, or endorsed by JennAir.
JennAir and related trademarks are the property of their respective owners.
Seeing LO on your JennAir refrigerator? It usually points toward low temperature / door. This independent guide from JennAir Appliance Repair covers symptoms, cautious checks, and clear next steps — without sending you to a factory “authorized” desk.
Reviewed by Marcus Hale · Last reviewed August 11, 2026
Written by
Marcus Hale Appliance Repair Content SpecialistPublished August 9, 2026Updated August 11, 2026Technically reviewed August 11, 2026
Reviewed Wording follows cited JennAir service literature; confirm decode on your exact model.
Status/indicator message commonly seen on JennAir / Whirlpool-family controls; confirm wording in your use & care guide.
Error codeLO
ApplianceRefrigerator
Affected model seriesTypical on JennAir built-in / column; always confirm generation
Quick answer
LO · Low temperature / door · JennAir refrigerator — independent plain-language overview.
Model compatibility: JennAir reuses codes across series and model years, so LO may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Typical reading on JennAir controls: LO may indicate a low-temperature alarm or a door/switch related display depending on the control. Confirm doors/drawers are fully closed and setpoints are reasonable. Never assume one forum post or generic chart overrides your rating-plate model. Independent technicians at JennAir Appliance Repair test the live appliance rather than guessing from the code alone.
Signs
Symptoms you may notice
The refrigerator shows LO and cooling seems off
Temperatures drift while LO is displayed
LO appears alongside unusual cooling behavior
Why it happens
Possible causes
A cooling-performance issue (varies by model)
A sensor or control affecting cooling
Airflow or door-seal problems reducing performance
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Confirm the vents inside are not blocked by items
Confirm the door seals and closes properly
Note actual temperatures if you can measure them
Note any leak, odor, breaker trip, or unusual heat alongside the code
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Please avoid
What not to attempt
Do not open internal panels or access high-voltage components
Do not bypass door locks, safety switches or interlocks
Get help
When to call a technician
If LO persists after the safe checks above, contact a qualified appliance technician with your model and serial numbers. This site is independent repair guidance — not official JennAir service.
Seeing this code on your JennAir appliance?
Book a specialist visit for a clear estimate and approval before any repair. Independent service — not affiliated with JennAir.
Column or French-door running warm, frosting unevenly, or pooling water? We diagnose JennAir refrigeration inside the install and restore stable temperatures.
Power failure (PF) — the unit lost power and is alerting you that temperatures may have risen during the outage. Check food safety, confirm the outlet and breaker,…
LO may indicate a low-temperature alarm or a door/switch related display depending on the control. Confirm doors/drawers are fully closed and setpoints are reasonable.
You may clear the display once you have photographed it and completed only the manual’s user steps. Persistent LO means diagnosis by JennAir Appliance Repair, not more DIY cycling.
Never assume one forum post or generic chart overrides your rating-plate model. Independent technicians at JennAir Appliance Repair test the live appliance rather than guessing from the code alone.
No. JennAir Appliance Repair publishes independent repair guidance for homeowners. For manufacturer documentation use producthelp.jennair.com and your model manual — then book an independent technician if the fault continues.
