Viessmann FS Series - User Manual

Questions and Answers

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Nicholas AbbottAug 13, 2025
Why is my Viessmann Refrigerator running constantly?
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  longmatthewAug 13, 2025
  Your Viessmann Refrigerator might be running constantly due to several reasons. The coldroom might be filled to capacity, in which case you should store less or at a higher temperature, while observing storage dates and shelf-life. The door of the coldroom might have been open too long, so store less or allow warm goods to cool to room temperature before storing. The ambient temperature could be too high, so reduce it. Blocked suction and exhaust vents could also be the cause, so maintain a minimum free space of 250 mm in front of all openings. Finally, a dirty evaporator or condenser could be the culprit, so clean the fins with a brush and vacuum cleaner.
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williamsandreaAug 17, 2025
How to fix a Viessmann Refrigerator that is not running?
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  dhinesAug 17, 2025
  If your Viessmann Refrigerator isn't running, it could be due to an interrupted power supply or a defective regulator. Check the plug and fuses. If the problem persists, it is advisable to contact a specialist.
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Caleb FloydAug 20, 2025
What to do if Viessmann Refrigerator runs constantly and has ice deposits?
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  mistymartinezAug 21, 2025
  If your Viessmann Refrigerator runs constantly and the evaporator has ice deposits, it could be due to the door being open too long. Try to only open the door for brief intervals. Another reason might be uncovered fluids being stored inside; make sure to cover any fluids. Also, the defrosting cycles might not be optimal. You can initiate manual defrosting. If necessary, shorten or extend the defrosting time.
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Daniel SpenceAug 25, 2025
What does Error Code F3 mean on my Viessmann Refrigerator?
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  Jasmine FosterAug 25, 2025
  Error Code F3 on your Viessmann Refrigerator indicates that the high pressure pressostat has been activated. Check the condenser for contamination and clean if necessary. Also, check to see if the condensing ventilator is running and reduce the ambient temperature.
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Ashley HammondAug 28, 2025
What does Error Code F4 mean on my Viessmann FS Refrigerator display?
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  Stanley PierceAug 28, 2025
  Error Code F4 on your Viessmann Refrigerator indicates that the coldroom standard temperature has been exceeded or is too low. Check the evaporator for contamination and clean if necessary. Also check the evaporator for icing and initiate manual defrosting if required. Ensure that the evaporator ventilator is running.
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Peter LopezSep 1, 2025
What to do if Alarm light is flashing Error Code F5 in Viessmann FS?
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  tuckercherylSep 1, 2025
  Error Code F5 on your Viessmann Refrigerator indicates that the door contact switch is not connected or the coldroom door has been open for more than four minutes. Put the sliding switch on the control panel into the position without door contact switch or close the door.
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Tony ZimmermanSep 5, 2025
What does Error Code F1 mean on a Viessmann Refrigerator?
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  Michael RodriguezSep 5, 2025
  Error Code F1 on your Viessmann Refrigerator indicates a short circuit in the temperature sensor. Replace the temperature sensor.
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Paige CortezSep 9, 2025
What does Error Code F2 mean on my Viessmann Refrigerator?
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  Matthew TorresSep 9, 2025
  Error Code F2 on your Viessmann Refrigerator indicates that the temperature sensor is broken, and the coldroom temperature is above 50°. Replace the temperature sensor.