What to do if fault messages (F.xx) appear on my Vaillant Water Heater?
If fault messages (F.xx) appear, try these steps: First, rectify the fault after referring to the table in the appendix or using the check programmes. If that doesn't work, press the restart button (max. three times). If the problem persists, contact customer service.
How to fix radiators not heating up sufficiently at the default setting on my Vaillant Water Heater?
If radiators do not heat up sufficiently at the default setting, set the pump to the maximum speed.
General| Model | ecoFIT pure 835 |
|---|---|
| Category | Boiler |
| Type | Combination Boiler |
| Output | 35 kW |
| Efficiency | 94% |
| Dimensions (H x W x D) | 700 x 390 x 295 mm |
| ERP Rating | A |
| Mounting | Wall-mounted |
| Fuel Type | Natural Gas |
| Central Heating Flow Temperature Range | 30 - 80 °C |
| Warranty | 5 years |
Defines the product's proper and prohibited uses for heating and hot water generation.
Specifies required professional training and skills for installation and maintenance personnel.
Crucial safety warnings for gas, electricity, flue gas, high temperatures, and handling.
Specifies suitable locations for installing the boiler, including room types and zones.
Defines required safety distances around the boiler for ventilation and access.
Details specific positioning requirements for the external flue terminal.
Essential preliminary steps before installing the boiler and system connections.
Details the correct procedures for connecting gas and water supply lines.
Provides detailed instructions for connecting the condensate drain, including material and fall.
Covers the correct installation and connection of the air/flue pipe system.
Outlines procedures for safe and correct electrical connections by qualified personnel.
Guides the essential initial setup procedures using the benchmark checklist.
Covers critical steps for ensuring water quality and proper system filling.
Warns about and addresses issues related to low water pressure in the heating system.
Critical procedure for verifying and adjusting gas settings by a competent person.
Ensures proper function and safety of the air intake and flue gas exhaust system.
Verifies that the gas flow rate is within specified parameters for optimal performance.
Measures and verifies the gas supply pressure at the reference test point.
Assesses combustion efficiency by measuring CO2 levels.
Provides guidance on identifying and resolving common operational faults and error codes.
Step-by-step instructions for replacing various faulty components of the boiler.
To Next Page
