Brand: Worcester
Category: Boiler
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for TR 100
Uploaded: April 20, 2026, 7:33 p.m.
Warranty Information
The warranty period is 24 months.
The TR 100 is a programmable room thermostat with a digital time switch for controlling gas heating units. It allows for automatic switching between heating and economy modes based on pre-set times. Key operations include setting the desired room temperature, activating continuous heating or economy modes, and programming daily heating and economy start/stop times. The device also offers features like frost protection and can be integrated with external sensors or remote control switches.
Troubleshooting and error codes
| Malfunction | Cause | Elimination |
|---|---|---|
| Set room temperature not reached | Thermostat valve(s) installed in the room where the regulator is mounted | Thermostat valve to be replaced by a hand valve or completely open the thermostat valve(s) |
| Flow temperature of the heating unit set too low | Set the flow temperature to a higher value | |
| Set room temperature exceeded | Mounting location of the regulator is inappropriate, e.g. outside wall, close to a window, draught | Select a more appropriate mounting location or use an external temperature sensor (accessory) |
| Too high variation in room temperature | Temporary influence of external heating sources on the regulator e.g. by insolation, room lighting, TV, fireplace, etc. | Select a more appropriate mounting location or use an external temperature sensor (accessory) |
| Rise in temperature instead of reduction | Time of day is set incorrectly at the time switch | Check the setting |
| Too high room temperature in economic operating mode | High regenerative capacity of the building | Select an earlier starting time for economic operating mode |
| Wrong or no regulation | Wrong wiring of the regulator | Check the wiring according to the circuit diagram and correct if necessary |
| No display or the colon is not indicating | Very short power failure | Switch off and on the heating unit main switch |