The manual dedicates three pages to safety. These are the top four absolute rules:
| Error Code / Light | Meaning | Likely Cause | Manual’s Fix | | :--- | :--- | :--- | :--- | | | Inlet Thermistor Failure | Sensor open or shorted | Check resistance of inlet probe (10k ohm at 77°F). Replace probe. | | E-02 | Outlet Thermistor Failure | Sensor open or shorted | Check outlet probe wiring. Replace if cracked from over-temp. | | E-03 | Flow Switch Error | Switch stuck open (no flow) or stuck closed (flow always detected) | Remove and inspect paddle for lime scale. Test continuity across terminals 1 & 2. | | E-04 | Heater Over-Temp | Outlet exceeded 200°F (93°C) | Manual high-limit reset button on the side of the tank. Also check for stuck contactor. | | E-05 | Heater Runaway | Elements heating without call for heat | Replace solid-state relay (SSR) immediately. Dangerous. | | E-06 | Low Incoming Water Temp | Inlet < 100°F (38°C) for > 60 seconds | Increase building water heater temp. Install booster heater upstream. | | Red LED flashes 2x | Scale Detection | The board detected a 20% drop in flow due to scale buildup | Descale the unit immediately (see maintenance section). |
Ensure the incoming water pressure is maintained at 20 ± 5 PSI for optimal operation. 3. Operating Instructions Ecolab Ecotemp 12 Manual
Hard water scale is the #1 killer of the Ecotemp 12. Scale acts as an insulator, causing the heating element to overheat and crack.
The Booster unit must be installed in a frost-free room to prevent internal component damage. The manual dedicates three pages to safety
While high-temp machines use heat to sanitize, they still use detergents and rinse aids. Ecolab chemicals are highly concentrated.
Units like the Booster 12 ensure water temperatures reach the required 180°F for proper sanitization. | | E-02 | Outlet Thermistor Failure |
The Ecotemp program is designed for professional kitchens that require a consistent, high-level clean with zero capital investment.
| Part Description | Ecolab Part Number | Notes | | :--- | :--- | :--- | | Heating Element (12kW, 240V) | 123456-01 | Kit includes gasket. | | Flow Switch Assembly | 789012-02 | Includes paddle and o-ring. | | Control Board (Digital) | 345678-03 | Version 3.0 or higher required for 2020+ models. | | Outlet Thermistor (Probe) | 567890-04 | High-temp rated. | | Solid State Relay (SSR) | 901234-25 | 25 Amp DC control. | | High-Limit Thermostat (Manual Reset) | 234567-88 | Trips at 200°F. |
Once installed, the manual teaches you how to read the LED display and status lights.
It uses integrated diaphragm pumps for precise chemical dispensing, which lowers manual handling and ensures consistent cleaning results.