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Viessmann B1KA - User Manual

Viessmann B1KA
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Operating Instructions
VITODENS
100-W
5784 570 - 02 05/2017
Vitodens 100-W
B1HA Series and B1KA Combi Boiler
Wall-Mounted, gas-fired condensing boilers
On demand domestic hot water with Combi boiler
Read and save these instructions
for future reference.
IMPORTANT
Please file in Service Binder
Heating input: 21 to 125 MBH
6.2 to 36.6 kW
WARNING
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
WARNING
Improper installation, adjustment, and/
or operation could cause carbon monoxide
poisoning resulting in injury or loss of life.
This product must be installed and serviced
by a professional service technician who is
experienced and qualified in hot water boiler
installation and gas combustion.
Do not store or use gasoline or other
ammable liquids in the vicinity of this
or any other appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliances.
Do not touch any electrical switches,
do not use any phone in your building.
Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
If you cannot reach your gas supplier,
call the re department.
Installation and service must be
performed by a quali ed installer,
service agency or the gas supplier.
H

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Questions and Answers

  • J
    Justin StevensAug 30, 2025
    What does fault code 18 mean on my Viessmann B1KA?
    • L
      Leslie HardingAug 30, 2025
      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.
  • J
    jgalvanSep 7, 2025
    What does Fault code 30 mean on a Viessmann Boiler?
    • E
      Ernest GoodwinSep 7, 2025
      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.
  • E
    Erin HenryAug 29, 2025
    What does fault code 10 mean on my Viessmann B1KA Boiler?
    • F
      Felicia FrazierAug 29, 2025
      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.
  • J
    Jennifer RiosSep 18, 2025
    What to do if Viessmann B1KA Boiler shows fault F4 and gas train opens?
    • S
      shannon14Sep 18, 2025
      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.
  • C
    Cynthia TaylorSep 8, 2025
    What does Fault code 10 mean on a Viessmann B1KA Boiler?
    • A
      April HamiltonSep 8, 2025
      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.
  • J
    Joshua GomezSep 12, 2025
    What to do if the fan in my Viessmann Boiler starts no after approx. 51 s?
    • D
      dillonjimSep 12, 2025
      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.
  • K
    Kevin CookSep 16, 2025
    What to do if Viessmann B1KA Boiler burner shuts down below set temperature?
    • W
      William HamiltonSep 16, 2025
      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.
  • J
    Jessica SmithSep 23, 2025
    What to do if Viessmann Boiler displays fault F4?
    • J
      Jenna WilsonSep 23, 2025
      If your Viessmann Boiler is showing fault F4, check the ionisation current, the electrode adjustment, the condensate drain, and the gas line for airlocks.
  • R
    Rodney RiveraAug 26, 2025
    What to do if my Viessmann B1KA shows displayed fault code 52?
    • C
      Caleb NelsonAug 26, 2025
      If your Viessmann Boiler is showing fault code 52, check the connections and lead to the flow sensor. If necessary, replace the sensor.
  • J
    Joe FlemingAug 25, 2025
    What to do if my Viessmann B1KA shows fault F4?
    • P
      Patricia BryantAug 26, 2025
      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.

Viessmann B1KA Specifications

General IconGeneral
BrandViessmann
ModelB1KA
CategoryBoiler
LanguageEnglish

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