Eliwell’s latest firmware (v3.5+) now requires a dynamic exclusive password generated by the (available only to authorized service centers). However, for the legacy SMP5500 (the most common unit on the market), the static exclusive password -19 remains the golden ticket.
What the SMP5500 is
Read-only access or basic setpoint modifications.
Unlike a simple admin password, the “Exclusive” password on the SMP5500 unlocks . These are NOT listed in the standard user or installer manuals. They include:
This includes crucial settings like sensor types (PTC, NTC, PT1000), digital input configurations, and relay output mappings. eliwell+smp5500+password+exclusive
If a custom password is lost, manual overrides require accessing the hardware configuration link or using specialized Eliwell software tools (such as DeviceManager) via a TTL or RS485 serial connection to flash or read the current parameter map. 2. Remote Software Lockouts
Applying offsets to sensor readings to correct for long cable runs or minor sensor deviations. Compressor and Regulation Protection ( CPr )
A: Possibly, with the MFK 100 tool and FREE Studio software, which are intended for authorized personnel with the correct application files.
Basic everyday operations, such as viewing current temperatures, acknowledging alarms, or checking system status. Eliwell’s latest firmware (v3
Understanding how to navigate this exclusive programming architecture ensures safe configuration and optimal system calibration. Eliwell SMP5500 Core Menu Structure
What or prompt is currently on the screen?
Use the UP or DOWN arrows until the label PASS appears on the display.
If you are currently troubleshooting a specific error code or need help setting up a unique relay map on your controller, let me know. To help me give you the exact steps, please share: The specific you are trying to modify. Unlike a simple admin password, the “Exclusive” password
Access to parameter settings on the SMP 5500 is restricted by two standard password levels to prevent unauthorized changes:
When the display prompts for a code (often ), use the arrows to set the value to 22 . Press set again to gain access.
When attempting to enter the —especially to adjust the PAr/COnF (Configuration) or PAr/OPt (Operating) parameters—the controller will prompt for a security code. 1. The Default/Common Password
Fan duty cycles during defrost, fan activation thresholds based on evaporator probes. Alarms & Safety
In the world of industrial refrigeration and HVAC, the Eliwell SMP5500 stands as a titan of reliability. This programmable controller is the brain behind countless cold rooms, display cases, and industrial freezers. However, for every technician who has faced a locked screen or a "Password" request at a critical moment, the struggle is real.
Default codes are always printed in the physical technical datasheet or installation booklet bundled inside the original box.