Brötje Short cycling

Boiler frequently cycles on and off with short run times, no error code

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Oversized boiler, Incorrect control settings, Low system water volume, Thermostat hysteresis too small

Safety: Adjust only user-accessible settings unless you are a trained technician.

1. Check room thermostat: Increase the differential/hysteresis if adjustable to reduce rapid cycling.
2. Adjust heating curve: Lower the heating curve slightly so the boiler runs longer at lower output.
3. Increase system volume: In some cases, adding a buffer tank or additional radiators can help; consult a heating engineer.
4. Pump setting: Ensure the pump is set appropriately to distribute heat quickly.

Medium 3/5

Room Thermostat / Controller

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