Randell Prep Table Error Code HI / Hi: High Temperature Alarm
HI on the Carel controller, or Hi on the Danfoss, is the high temperature alarm on Randell 8000-290 and 9000W-290 prep tables. Check pan temperature with a food thermometer right away and move perishable food to another cooler if it is warm. Call us if the alarm does not clear after the cabinet recovers.
High: food in the pans may be outside the safe range while the alarm is active.
- Code
- HI (Carel) / Hi (Danfoss)
- Maker
- Randell
- Equipment
- Prep tables
- Applies to
- Carel controller (8000-290 / 9000W-290) and Danfoss controller (8000-290 / 9000W-290)
What does Randell error code HI mean?
The controller compares the cabinet temperature with a high limit, and when the cabinet stays above it, the alarm shows. It reads HI on the Carel controller and Hi on the Danfoss. The meaning is the same on both: the cabinet is warmer than its high limit, so sandwich and salad ingredients in the pans may be outside the safe range. This alarm does not name the cause, because several different things push a table over the limit. The usual ones are a door left open, a dirty condenser, a poor gasket, or a large load of warm product. A failing cooling system gives the same alarm, which is the case worth ruling out when the simple causes do not apply. The maker's list covers door and lid sealing including gaskets, condenser coil cleanliness and airflow, evaporator ice and fan operation, and the probe reading and alarm limit setting. Sorting the alarm into one of those four groups is what a service visit does.
Affected models and control systems
This applies to Randell 8000-290 and 9000W-290 series prep tables, with the Carel controller showing HI and the Danfoss controller showing Hi.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- HI or Hi on the display
- Pans warm to the touch
- Condensation on lids and well liner
- A compressor running for long periods without catching up
Possible causes
Listed in Randell's documentation
- Door and lid sealing, including gaskets
- Dirty condenser coil or restricted airflow
- Evaporator ice or a fan that is not running
- Probe reading or alarm limit setting
Other likely causes — what usually sits behind error code HI on this control. A technician confirms which one it is before any part is replaced.
- Several full pans of warm product added at once during prep
- Lids left propped open during a rush
- Evaporator fan stopped so the cold air stays at the coil
Safe checks before calling for service
- Check pan temperature with a food thermometer right away.
- Move perishable food to another cooler if it is warm.
- Inspect door and drawer sealing and close everything fully.
- Call us to schedule service if HI does not clear after the cabinet recovers, and tell us which controller the table has.
How a technician diagnoses error code HI
- Read the display and confirm Carel HI or Danfoss Hi.
- Check pan temperature with a reference thermometer against the display.
- Inspect gaskets, lids and door switches for leaks.
- Inspect the condenser coil and the fan.
- Check the evaporator for ice and confirm the evaporator fan runs.
- Verify the alarm limit and probe, then test the refrigeration system if the simple causes are ruled out.
- If the cause is a failing cooling system, the work involves refrigerant and line-voltage parts in a table with a flammable refrigerant.
- Food safety limits make correct diagnosis important, because a table that appears fixed may still be warm inside.
- Alarm limits are set in the controller, and a wrong value can hide a real problem.
How error code HI differs from similar codes
HI and Hi are the same alarm on two controllers. Door, condenser and probe codes can appear along with it.
Technical reference
- Document
- Randell 8000-290 & 9000W-290 Series Prep Tables Operator Manual, PP MNL1803 Rev. I (12/25), Carel / Danfoss controller codes
- Edition
- PART NUMBER PP MNL1803, REV. I (12/25)
- Models / control
- Carel controller (8000-290 / 9000W-290) and Danfoss controller (8000-290 / 9000W-290)
- Section
- Carel Controller Codes and Danfoss Controller Codes tables, Service/Troubleshooting, printed pp. 5-6
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Randell prep table error codes
Why is it HI on one table and Hi on another?
The Carel controller shows HI and the Danfoss shows Hi, but both mean the same thing.
Can warm product trigger the alarm?
Yes, a large load of warm product can lift the cabinet above the limit and then it recovers.
What if the food is warm?
Move it to another cooler and follow your food safety rules for the time it was out of range.
Need help with Randell error code HI?
A technician confirms the cause on site and gives you the price in writing before any work starts.