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Vaillant · ecoTEC pro
- Vaillant F.00F.00 indicates flow temperature sensor interruption. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.01F.01 indicates return temperature sensor interruption. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.10F.10 indicates flow temperature sensor short circuit. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.11F.11 indicates return temperature sensor short circuit. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.20F.20 indicates safety switch-off: temperature limiter. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.23F.23 indicates safety switch-off: temperature spread too large. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.24F.24 indicates safety switch-off: temperature increase too fast. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.25F.25 indicates safety switch-off: flue temperature too high. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.26F.26 indicates fuel valve not working. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.27F.27 indicates safety switch-off: flame simulation. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.32F.32 indicates fan fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.49F.49 indicates eBUS fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.61F.61 indicates fuel-valve actuation fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.62F.62 indicates fuel-valve switch-off delay fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.63F.63 indicates EEPROM fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.64F.64 indicates electronics/sensor fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.65F.65 indicates electronics temperature fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.67F.67 indicates electronics/flame fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.68F.68 indicates unstable flame-signal fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.70F.70 indicates invalid Device Specific Number fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.71F.71 indicates flow temperature sensor fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.72F.72 indicates flow/return temperature sensor fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.73F.73 indicates water pressure sensor fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.74F.74 indicates water pressure sensor fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.77F.77 indicates flue non-return valve/condensate pump fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.78F.78 indicates DHW outlet sensor interruption at an external controller. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.83F.83 indicates NTC temperature gradient fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.84F.84 indicates implausible NTC temperature difference fault. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.85F.85 indicates NTCs fitted incorrectly. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant Communication faultThe manual lists a communication fault between the display and the PCB in the electronics box. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.22F.22 indicates low water pressure in the heating installation and the boiler has stopped to protect itself. The manual notes that some shared-table codes may not be visible on every product variant.
- Vaillant F.28F.28 indicates that the ecoTEC pro could not establish a flame after three ignition attempts and has entered fault mode. The manual notes that some shared-table codes may not be visible on every product variant.
- Vaillant F.29F.29 indicates an operating failure after unsuccessful re-ignition, associated with intermittent interruption of the gas supply. The manual warns that some shared-table codes may not be visible on every product variant.
- Vaillant F.75F.75 indicates a pump or water shortage because the pressure increase is insufficient when the pump starts. The manual warns that some shared-table codes may not be visible on every product variant.
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