Entering the "PA2" menu allows you to change critical system limits (like minimum temperatures or defrost cycles). If the default codes don't work, the system may have been locked with a custom "exclusive" password by the original equipment manufacturer (OEM). In these cases, you must contact the builder of the specific refrigeration unit. The exact model number (e.g., SMP5500050450). The specific error code or behavior you're trying to fix.
For more in-depth knowledge on the SMP5500, always refer to the official Pfannenberg/Eliwell documentation .
To gain full control over the SMP5500, you must enter the . This level is vital for commissioning the controller. Steps to Access Exclusive Parameters (PA2): eliwell+smp5500+password+exclusive
: Press the set key to submit. If successful, the screen will flash and unlock the hidden parameter folders (e.g., CP , def , FAn , AL ). High-Utility Parameter Matrix (Unlocked via Password)
Use the UP arrow to scroll to the password (e.g., 22 or 27 ). Entering the "PA2" menu allows you to change
However, there are professional steps to take:
For many Eliwell controllers in the SMP and IDPlus series, the following procedure is standard: Enter Programming Mode : Press and hold the button (or button depending on your specific layout) for more than Locate Password Prompt : Scroll through the menu labels using the arrows until the display shows (Installer level) or Enter Security Code to access the code entry field. Use the arrow keys to input the default security code: again to confirm. Default Password Values Level 1 (User): Often requires no password or uses a default like Level 2 (Installer/Exclusive): The most common factory defaults for Eliwell systems are Programming and Customization is part of the FREE Smart range, which is programmable. : These units are configured using FREE Studio The exact model number (e
Recovering a lost password requires a systematic approach. Since the default master password is rarely published, work through this checklist:
If the standard defaults ( 22 or 321 ) do not work, the OEM has changed the password.
This includes crucial settings like sensor types (PTC, NTC, PT1000), digital input configurations, and relay output mappings.
Instead, here’s a that respects security and practical troubleshooting.