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Gary DelacruzAug 28, 2025
What causes fault code A7 on a Viessmann B2TF?
- CcarlosjimenezAug 28, 2025
If your Viessmann Boiler displays fault code A7, it means the programming unit is faulty. Replace programming unit.
What causes fault code A7 on a Viessmann B2TF?
If your Viessmann Boiler displays fault code A7, it means the programming unit is faulty. Replace programming unit.
How to resolve fault code 59 on a Viessmann B2TF Boiler?
If your Viessmann Boiler displays fault code 59, it indicates a lead break in the outlet temperature sensor. Check sensor.
Why is my Viessmann Boiler displaying fault code 51?
If your Viessmann Boiler displays fault code 51, it indicates a short circuit in the outlet temperature sensor. Check sensor.
What should I do if my Viessmann B2TF Boiler shows fault code 58?
If your Viessmann Boiler displays fault code 58, it indicates a lead break in the cylinder temperature sensor. Check sensors.
What does fault code 50 mean on a Viessmann Boiler?
If your Viessmann Boiler displays fault code 50, it indicates a short circuit in the cylinder temperature sensor. Check the sensors.
How do I fix fault code 28 on my Viessmann B2TF?
If your Viessmann Boiler displays fault code 28, it indicates a lead break in the system flow temperature sensor. Check the low loss header sensor.
What does fault code E0 mean on a Viessmann B2TF Boiler?
If your Viessmann Boiler displays fault code E0, it indicates a fault with an external LON subscriber. Check connections and LON subscribers.
What to do if Viessmann B2TF displays fault code 38?
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.
Why is my Viessmann B2TF showing fault code 30?
If your Viessmann Boiler displays fault code 30, this indicates a short circuit in the boiler water temperature sensor. Check the boiler water temperature sensor.
What does fault code 18 mean on my Viessmann Boiler?
If your Viessmann Boiler displays fault code 18, it indicates a lead break in the outside temperature sensor. Check the outside temperature sensor.
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