Vaillant ecoTEC plus VU GB 5-5 Series Installation And Maintenance Instructions Manual

Also see for ecoTEC plus 1006 VU GB 1006/5-5: Installation and maintenance instructions

Contents

Vaillant ecoTEC plus VU GB 5-5 Series Installation And Maintenance Instructions Manual Manual pdf 31 page image

Inspection and maintenance 90020134823_07 ecoTEC plus Installation and maintenance instructions 319. Remove the plugs (12) and (13) from the fan motor bypushing in the latching lug.10. Remove the plug from the gas valve assembly (10).11. Remove the plug from the upper safety cut-out (8).12. Undo the screws (6) on the burner door.13. Remove the complete gas-air mixture unit (5) from theheat exchanger (7).14. Check the burner and the heat exchanger for damageand dirt.9.6 Cleaning the heat exchanger1. Protect the electronics box against sprayed water.12. Remove the lower section of the condensate trap toensure that any existing condensate neutraliser doesnot become damaged.3. Rinse away any loose dirt in the heat exchanger (1)with a sharp jet of water or use a plastic brush.◁ The water flows out of the heat exchanger throughthe drain.4. Install the condensate trap.9.7 Checking the burner14321. Check the surface of the burner for damage. If you no-tice any damage, replace the burner, including the seal(→ Page 35).2. Check the insulating mat (2) on the burner door. If younotice any signs of damage, replace the insulating mat(→ Page 35).9.8 Replacing the ignition and ionisationelectrodes1Caution.Risk of material damage caused by dam-age to the ignition and ionisation elec-trodes.The electrodes may become damaged duringinstallation.▶ Install the new electrodes only after firstinstalling the gas-air mixture unit.