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 30 mean on a Viessmann WB1A007 Boiler?
If your Viessmann Boiler displays Fault code 30, this indicates a short circuit in the boiler water temperature sensor. You should 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.
What to do if Viessmann WB1A007 shows fault F4 and gas train opens?
If your Viessmann Boiler displays fault code F4 and the gas train opens, check the gas train's control voltage (230 V) and the gas supply pressure.
What does Fault code 10 mean on a Viessmann WB1A007 Boiler?
If your Viessmann Boiler shows Fault code 10, it means there is a short circuit in the outside temperature sensor. Check the outside temperature sensor and its lead.
What to do if the fan in my Viessmann WB1A007 starts no after approx. 51 s?
If the fan in your Viessmann Boiler does not start after approximately 51 seconds, check the following: 1. The fan itself. 2. The fan connecting cables. 3. Power at the fan. 4. Fan control.
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 to do if Viessmann WB1A007 displays fault F4?
If your Viessmann Boiler is showing fault F4, check the ionisation current, the electrode adjustment, the condensate drain, and the gas line for airlocks.
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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