What does fault code 18 mean on my Viessmann WB1A007 Boiler?
If your Viessmann Boiler displays fault code 18, it indicates a lead break in the outside temperature sensor. Check the outside temperature sensor and lead.
What does fault code 38 mean on my Viessmann Boiler?
If your Viessmann Boiler displays fault code 38, it indicates a lead break in the boiler water temperature sensor. Check the boiler water temperature sensor.
What does fault code 10 mean on my Viessmann Boiler?
If your Viessmann Boiler displays fault code 10, it indicates a short circuit in the outside temperature sensor. Check the outside temperature sensor and lead.
How to solve control unit issues with no increase set value in Viessmann WB1A007 Boiler?
If the control unit of your Viessmann Boiler is not increasing the set value, increase the set value and ensure heat is being drawn off.
What to do if Viessmann WB1A007 burner shuts down below set temperature?
If your Viessmann Boiler burner shuts down below the set boiler water temperature and restarts immediately, check the flue system for tightness to prevent flue gas recirculation. Also, inspect the condensate drain and verify the gas flow pressure.
What does fault code 38 mean on Viessmann Boiler?
If your Viessmann Boiler displays fault code 38, which indicates a lead break in the boiler water temperature sensor, check the boiler water temperature sensor.
How to fix fault F9 on a Viessmann Boiler?
To address fault F9 on your Viessmann Boiler, check the fan, the fan connecting cables, the power at the fan, and the fan control.
What does fault code 50 mean on my Viessmann WB1A007 Boiler?
If your Viessmann Boiler displays fault code 50, it indicates a short circuit in the cylinder temperature sensor. You should check the sensor.
What to do if my Viessmann WB1A007 shows displayed fault code 52?
If your Viessmann Boiler is showing fault code 52, check the connections and lead to the flow sensor. If necessary, replace the sensor.
What to do if my Viessmann WB1A007 Boiler shows fault F4?
If your Viessmann Boiler displays fault code F4, there are several potential solutions: * Check the ignition module connection. * Check the gas train (control voltage 230 V) and the gas supply pressure. * Check the ionisation current, the electrode adjustment, and the gas line for air-locks.
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