The eberle instat 6 user manual english devotes a full section to error handling. Here’s the essential table:
| Code | Meaning | Solution | |------|---------|----------| | E1 | Internal sensor fault (open circuit) | Replace thermostat or sensor | | E2 | Internal sensor short circuit | Check for moisture/damage – replace unit | | E5 | External sensor fault (optional) | Check external sensor wiring or disable in P## | | Battery icon flashing | Backup battery low (clock will reset on power loss) | Replace CR2032 battery on PCB (requires opening unit) | | Flame symbol on but room cold | Relay stuck or wiring issue | Check voltage at terminal 2. If 0V, thermostat faulty. If 230V, boiler problem. | | Display blank | No power or internal fuse blown | Check circuit breaker, then test L-N voltage. |
General reset: To reset all settings to factory defaults (schedule, parameters, time) – Press and hold Clock + Auto/Manual for 10 seconds until all segments flash, then release.
The Eberle Instat 6 is a sophisticated, programmable electronic room thermostat designed for precise temperature control in residential and light commercial heating systems. It is commonly paired with gas boilers, oil-fired boilers, underfloor heating actuators, or electric heating systems. Unlike simple bi-metal thermostats, the Instat 6 offers: eberle instat 6 user manual english
This manual focuses on hardware version 6.x and common variants (Instat 6, Instat 6R, Instat 6RF).
Danger: 230V AC present. Only for qualified installers.
The Eberle Instat 6 uses screw terminals on the rear. Ensure correct wire gauge (0.5-2.5 mm² solid or stranded). The eberle instat 6 user manual english devotes
| Terminal | Label | Description | |----------|-------|-------------| | N | Neutral (mains input) | 230V AC neutral | | L | Live (mains input) | 230V AC live | | 1 | Common (COM) | Relay common contact | | 2 | Normally Open (NO) | Relay NO – closes on heat call | | 3 | Normally Closed (NC) | Not used in most heating systems | | (S1, S2) | External sensor | Optional floor sensor (if equipped) |
Common wiring example for 2-wire boiler (voltage-free):
For 3-wire (230V switching):
Always refer to your boiler manual and the wiring diagram sticker inside the Instat 6 terminal cover.
Before diving into the buttons, it is important to understand what this device does. The Instat 6 is a digital time and temperature controller. Unlike a simple dial thermostat that just maintains a temperature, the Instat 6 allows you to program different temperatures for different times of the day.
Key Features:
The Eberle Instat 6 is a microprocessor-based heating controller designed to regulate room temperature using a PI control algorithm (proportional-integral). It is typically used for:
Key Features:
