Jenn-Air Refrigerator Error Code HI — High Temperature Alert
What this means
Error HI on Jenn-Air refrigerators indicates the fresh food (refrigerator) compartment temperature has risen above the set threshold for an extended period. This is similar to the FF code but applies to the fresh food section rather than the freezer. Perishable foods may be at risk. Causes include a door left ajar, a failed evaporator fan, a defrost system problem causing ice buildup that blocks airflow, a failed damper that controls airflow from the freezer to the fridge section, or a compressor issue.
Alternate codes: Hi Temp, High Temp
Step-by-step fix
3 stepsDismiss the alert and check for obvious causes
Press any button to dismiss the HI alert. Check if the door was left ajar or if the door seal is not making full contact. Verify the temperature setting has not been accidentally changed to a warmer setting. Check if the fridge is overstocked, blocking air vents.
On Jenn-Air built-in refrigerators, the door seal can lose contact if the hinges have loosened. Check that the door closes firmly and the seal compresses evenly.
Check the air damper between freezer and fridge
Most Jenn-Air refrigerators have a motorized air damper that controls the flow of cold air from the freezer section into the refrigerator section. If this damper is stuck closed, cold air cannot reach the fridge even though the freezer is working fine. Listen for the damper motor or manually inspect the damper position.
If the freezer is cold but the fridge is warm, the damper is the most likely cause — it is a common failure point on Jenn-Air models.
Verify the evaporator fan and defrost system
Open the freezer and listen for the evaporator fan. If it is not running, cold air cannot circulate. Also check the evaporator coils for excessive frost — an iced-over evaporator blocks airflow to both compartments.
Press the door switch to simulate a closed door while listening for the fan. The fan is designed to stop when the door is open.
When to call a professional
If the damper, fan, and defrost system all appear functional, the refrigerant charge may be low due to a sealed-system leak. This requires professional diagnosis and repair.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Links may earn us a commission at no extra cost to you. We only recommend parts relevant to this repair.