Continental Refrigerator Error Code Pr1: Regulation Probe Error
Pr1 on a Continental refrigerator or freezer with the Evco-type control is a Regulation Probe Error. The manual says the return air probe Pb1 is defective and that the reset is automatic. A technician should check the probe and its wiring.
Medium: the control loses its main temperature reading, which can upset cooling.
- Code
- Pr1
- Maker
- Continental
- Equipment
- Reach-in refrigerators
- Applies to
- Continental refrigerators and freezers with the Evco-type electronic control (probes Pb1-Pb3)
What does Continental error code Pr1 mean?
Pr1 is listed as the Regulation Probe Error in the alarm table for the Evco-type electronic control used on Continental refrigerators and freezers. Probe Pb1 is the regulation probe, which measures return air and is the reading the control uses to decide when to run the compressor. If the control cannot get a valid reading from Pb1, it shows Pr1. The manual's table gives the code, a one-line description and the reset type, which is automatic. That means the alarm should disappear on its own once the probe reads correctly again. The table gives no causes and no operator steps. Without a good regulation reading, the control cannot follow the setpoint in the normal way, so the cabinet may run too cold or too warm depending on how the control is set up to behave on a probe error. The manual does not say which.
Affected models and control systems
Pr1 is listed for Continental refrigerators and freezers with the Evco-type electronic control and probes Pb1 to Pb3, in the Alarm Codes and Reset Types table printed on page 2 of the operations manual. Pb1 is the regulation probe.
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
- Pr1 on the control display
- Cabinet temperature not shown or incorrect
- Compressor running or stopping without regard to the cabinet temperature
Possible causes
Likely causes — what usually sits behind error code Pr1 on this control. A technician confirms which one it is before any part is replaced.
- Pb1 probe connector loose or unplugged
- Probe cable damaged where it passes through the cabinet
- Probe element failed after moisture or age
Safe checks before calling for service
- Check the cabinet temperature with a separate thermometer.
- Watch whether the compressor runs steadily or stays off.
- Do not open the control or unplug the probe.
- Move food if the cabinet is warming or freezing items.
- Tell the technician that Pr1 is shown, with the thermometer reading and the time it began.
How a technician diagnoses error code Pr1
- Read the code and confirm Pr1 refers to Pb1, the return air probe.
- Check the probe connector and cable.
- Measure the probe resistance against its chart at the known temperature.
- Compare the Pb1 value with the other probes on the display.
- Replace the probe if it is open, shorted or out of range.
- Confirm the alarm resets automatically.
- Probe wiring ends at a control that sits near line voltage.
- Interpreting the probe values needs the control's parameter list.
- A probe replacement must be placed and calibrated as the unit expects.
How error code Pr1 differs from similar codes
Pr1 concerns the regulation probe Pb1. Pr2 and Pr3 on the same control cover the evaporator probe Pb2 and the ambient probe Pb3.
Technical reference
- Document
- Operations Manual - Electronic Control for Refrigerators and Freezers (Continental easy control)
- Edition
- REV. 07/22/2025
- Models / control
- Continental refrigerators and freezers with the Evco-type electronic control (probes Pb1-Pb3)
- Section
- Alarm Codes and Reset Types, printed p. 2; Loc/UnL appear only in How to Unlock the Keypad, p. 1
- 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 Continental reach-in refrigerator error codes
Can I keep using the cooler with Pr1?
Only with frequent temperature checks. The control has lost its main temperature reading.
Will Pr1 clear itself?
The manual lists the reset as automatic, so it clears when the probe reads correctly.
Is Pr1 the same as Pr2?
No. Pr1 is the regulation probe Pb1, while Pr2 is the evaporator probe Pb2.
Need help with Continental error code Pr1?
A technician confirms the cause on site and gives you the price in writing before any work starts.