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Download Vaillant VRT 340f Installation manual
Transcript
11 Start-up 11.2 Service/diagnostics level Access the service/diagnostics level by pressing the P button and the dial. • Press the P button and the dial simultaneously for approx. 3 seconds. First, a heating request for 50 °C is triggered to test communication with the boiler. Then you can select all the test options by pressing or rotating the dial. When you press the P button the display returns to basic mode. 34 Installation instructions VRT 340f
