To Next PageTo Next PageWhy is my Viessmann Vitotron 100 not providing enough heat?
If your Viessmann Boiler is not providing sufficient heat output, the issue could stem from the heating elements or the control panel setup. Check the resistance on the heating elements. Also, ensure the control panel is set up for the correct kW and number of heating elements through the advanced settings.
Why are my rooms too cold with my Viessmann Vitotron 100 Boiler?
Several factors could be at play. First, check if the heating system is actually switched on. Ensure the mains isolator (usually outside the boiler room) and the MCB in your power distribution board are both ON. If you're using a room temperature controller, the settings might be incorrect; try setting a higher boiler water temperature or room temperature, depending on your controller model. Also, if DHW priority is enabled, wait until the DHW cylinder is heated. Air in the heating system can also cause this, so bleed the radiators. Finally, if the display shows "Fault", contact your heating contractor and provide the fault code.
Why is “Outlet temp.” blinking on my Viessmann Vitotron 100?
If both “Outlet temp.” is blinking on your Viessmann Boiler, it indicates a failure of the outlet temperature sensor or a loose connection. Check the connections. If necessary, replace the HC-DN 15 sensor.
What does it mean when “Inlet temp.” blinks on my Viessmann Boiler?
If both “Inlet temp.” blinks on your Viessmann Boiler, it indicates a failure of the inlet temperature sensor, placing the electric boiler in a failure condition. Check the connection or replace the thermistor sensor.
What to do if the “PSI” indicator is blinking on my Viessmann Vitotron 100 Boiler?
If the “PSI” indicator is blinking on your Viessmann Boiler, it could be due to insufficient pressure (below 7 psi) or a pressure sensor failure. First, switch the controller to pressure view and increase the system pressure above the minimum required 7 psi. If the display shows - -, it indicates a pressure sensor failure, and you should contact an authorized service person.
Why is the “GPM” indicator blinking on my Viessmann Boiler and how to fix it?
If the “GPM” indicator is blinking on your Viessmann Boiler, it could be due to several reasons: a blocked pump, a blocked electric boiler, a blown fuse, or a failure of the pump or flow sensor. Here's what you can do: * Unblock the pump by unscrewing the screw on the pump housing and manually moving the pump rotor. * Purge the installation, pump, and electric boiler to remove any air bubbles. * Check the 1 amp fuse on the control panel. * Check the power supply for the circulating pump. If these steps don't resolve the issue, contact an authorized service person or the seller.
How to troubleshoot when the “Heating status” is off on a Viessmann Vitotron 100 Boiler?
If the heating status is off on your Viessmann Boiler, it could be due to no thermostat connection or a control board failure. Ensure the thermostat is calling for heat and is above the ambient temperature set point. Verify the connections on the thermostat. Also, check the fuse on the control panel (glass fuse 6.3 x 32 mm 2A).
What does it mean when the circulator indicator blinks on my Viessmann Vitotron 100 Boiler?
If the circulator indicator is blinking on your Viessmann Boiler, it indicates a lack of water flow (less than 2.1 GPM minimum). Adjust the flow characteristics as needed to ensure sufficient water flow.
What does it mean when the “Heating status” blinks on my Viessmann Vitotron 100 Boiler?
If the “Heating status” is blinking on your Viessmann Boiler, it means the unit is in off-peak mode and not heating. This is due to electric utility off-peak control.
Why are all the indicators off on my Viessmann Vitotron 100 Boiler control panel?
If all indicators on the control panel of your Viessmann Boiler are off, it could be due to no power to the electric boiler. Check for 240 VAC on the electric boiler's main connection terminals. Also, try resetting the manual safety high limit. If the problem persists, contact an authorized service person.
General| Heat Exchanger Material | Stainless Steel |
|---|---|
| Fuel Type | Natural Gas or Propane |
| Control System | Vitotronic Control Unit |
| Weight | Approx. 42 kg |
| Water Pressure | Max. 3 bar |
| Max Water Temperature | 85°C |
| Type | Condensing Boiler |
