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Viessmann B1HA - User Manual

Viessmann B1HA
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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

  • B
    Benjamin WelchAug 27, 2025
    What does fault code 50 mean on my Viessmann Boiler?
    • K
      Katherine FletcherAug 27, 2025
      If your Viessmann Boiler displays fault code 50, it indicates a short circuit in the cylinder temperature sensor. You should check the sensor.
  • J
    Joseph HarrellAug 27, 2025
    How to fix fault F9 on a Viessmann B1HA?
    • W
      Wendy TaylorAug 27, 2025
      To address fault F9 on your Viessmann Boiler, check the fan, the fan connecting cables, the power at the fan, and the fan control.
  • V
    Victoria WrightAug 27, 2025
    Why does my Viessmann B1HA burner stop and restart quickly?
    • A
      Alejandro DunnAug 27, 2025
      If your Viessmann Boiler burner stops below the set boiler water temperature and restarts immediately, check the flue system for tightness (flue gas recirculation) and the gas flow pressure.
  • A
    Amanda RyanAug 28, 2025
    What does fault code 51 mean on my Viessmann B1HA Boiler?
    • W
      watsonjamesAug 28, 2025
      If your Viessmann Boiler displays fault code 51, it means there is a short circuit in the outlet temperature sensor. Check the sensor.
  • R
    Robin SparksAug 28, 2025
    What does fault code 30 mean on my Viessmann B1HA Boiler?
    • D
      Daniel WalkerAug 28, 2025
      If your Viessmann Boiler displays fault code 30, it indicates a short circuit in the boiler water temperature sensor. Check the boiler water temperature sensor.
  • L
    Lisa Woods MDAug 29, 2025
    What does fault code 10 mean on my Viessmann Boiler?
    • S
      shawnwrightAug 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.
  • A
    Austin SmithAug 29, 2025
    What does fault code 38 mean on my Viessmann B1HA?
    • S
      Scott HaynesAug 29, 2025
      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.
  • K
    kwongAug 30, 2025
    What does fault code 18 mean on my Viessmann B1HA Boiler?
    • I
      imathewsAug 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.
  • E
    esmithAug 31, 2025
    What to do if Viessmann B1HA Boiler shows fault F4?
    • G
      Gregory SmithAug 31, 2025
      If your Viessmann Boiler displays fault code F4, indicating no flame signal, you should inspect the ionisation electrode and its connecting cables. Also, verify the gas pressure, gas train, ignition, ignition module, and condensate drain. After these checks, press the "Reset" button.
  • D
    dannycastilloAug 25, 2025
    How to troubleshoot fault F4 on a Viessmann B1HA Boiler?
    • J
      Jamie BirdAug 25, 2025
      If your Viessmann Boiler is showing fault F4, check the ignition module connection.

Viessmann B1HA Specifications

General IconGeneral
ModelB1HA
Fuel TypeNatural Gas
Efficiency95% AFUE
Heat Exchanger MaterialStainless Steel
MountingWall-mounted
Control SystemVitotronic control system
Boiler TypeWall-mounted condensing boiler

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