Eliwell Smp5500 Error Codes [top] -

The SMP5500 interface uses specific icons and LEDs to provide real-time status: At least one alarm is currently active.

These are the most common errors. The SMP5500 uses NTC (Negative Temperature Coefficient) probes.

These errors appear when the controller’s internal logic is compromised. eliwell smp5500 error codes

Before diving into specific codes, it is critical to understand how the SMP5500 communicates errors.

. No communication between the Master and Slave devices in a network; check data cables and addresses. Clock/Battery Error The SMP5500 interface uses specific icons and LEDs

Shorted or interrupted probe; probe settings out of nominal range; parameter H00 (probe selection) is set incorrectly.

| Code | Description | Typical Cause | Solution | | :--- | :--- | :--- | :--- | | | Evaporator fan lock / Overload | Fan motor thermal switch triggered or rotation sensor missing. | 1. Check fan motor bearings. 2. Reset manual fan thermal switch. 3. Verify Fc (Fan configuration) parameter. | | dF | Defrost timeout | Defrost lasted longer than dt (Max defrost duration) without terminating. | 1. Check defrost heater/valve. 2. Verify evaporator probe (Pb2) is working—termination not detected. 3. Increase dt (typical: 45 min for electric, 30 min for hot gas). | These errors appear when the controller’s internal logic

Below is the complete list of error codes you will encounter on the SMP5500. They are categorized by the system component that triggers them.

Indicates a fault on probe Pb1, typically the cell temperature probe.

| Symptom | Action | | :--- | :--- | | Recurring EE after power cycle | (Memory chip failing) | | P1 persists with new probe & wiring | Replace (Analog input damaged) | | Relay clicks but compressor doesn't start (no error) | Repair (External contactor may be bad; controller is likely fine) | | rtC error with correct battery | Replace (RTC oscillator dead) |