What Temperature Alarm Means
JennAir's documentation describes this as an Over-Temp Alarm that helps avoid food spoilage and high energy costs by sounding an alert when refrigerator temperatures stay at unusually high levels — on new installs it repeats roughly every 1.5 hours until the fridge drops below 48°F (9°C) and the freezer below 15°F (-9°C).
Common Causes of Temperature Alarm
- A newly installed or recently reset refrigerator still cooling down to its normal operating range
- Doors left open, or opened frequently, preventing the unit from holding temperature
- A genuine cooling system problem (failed compressor, blocked condenser airflow, or a refrigerant issue) if the alarm persists well beyond a normal cooldown period
🔧 One Safe Check You Can Try
Press the "Over Temp" indicator on the display to silence the alert, and if this is a new installation, allow the unit up to 24 hours to reach normal operating temperature before treating a persistent alarm as a problem, per JennAir's own guidance.
⚠ Why You Shouldn't Go Further Than That
- If the alarm persists beyond a reasonable cooldown window, diagnosing a genuine cooling problem means accessing sealed refrigerant-system parts, which isn't safe or legal for anyone but a certified technician to open.
- Silencing the alarm repeatedly without addressing a real cooling problem risks losing an entire refrigerator's worth of food before the issue becomes obvious another way.
- The compressor and condenser sit near line-voltage connections at the rear of the unit, making an unsupervised inspection back there a shock risk.
- Misdiagnosing a persistent alarm as "just settling in" when it's actually a failing compressor delays a repair until the unit stops cooling entirely.
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.
Technical Reference
- Code
- Temperature Alarm
- Appliance
- JennAir refrigerator
- Maker documentation
- JennAir owner manuals and use & care guides
- Checked
- September 2026
Code meanings can change between control generations. Before acting on a code, match the full model number on your appliance's rating label against the manual for that model. We are an independent repair service, not affiliated with Whirlpool Corporation.