5Operating instructions ecoTEC plus 937 / 0020031573_023 Instructions on operation3.1 Factory guarantee3.1.1 Two years guarantee for ecoTEC plus unitsVaillant is committed to rectify any manufacturing faultswhich arise during the first 24 months after installation.A prerequisite for the effectiveness of the guarantee inthe second year is that, one year after installation, anannual inspection is carried out by a CORGI registeredmaintenance engineer. The costs for this annual serviceare not included in the guarantee.3.1.2 Registering with usRegistration is simple. Simply fill in the card for guaran-tee registration and send it back to Vaillant within30 days after installation. Your details will be automati-cally entered into the Vaillant guarantee plan.h Note!A receipt is not issued.3.1.3 Immediate helpIf a fault arises on your Vaillant boiler please contactyour installer initially since the guarantee conditions sti-pulate that his expertise must be made use of.If you cannot contact your installer then contact VaillantService Solutions on the phone number 0870 6060 777.3.2 Intended useThe Valliant ecoTEC plus 937 is a state-of-the-art appli-ance which has been constructed in accordance with re-cognised safety regulations. Nevertheless, there is a riskof injury or death to the user or others and damage tothe appliance or other property in the event of misuseor use for which the appliance is not intended.The units are intended as heat generators for sealedhot-water central heating installations and for centralhot water preparation. Any other use or extended use isconsidered to be improper. The manufacturer or sup-plier is not liable for any resulting damage. The useralone bears the risk.Intended use includes the observance of the operatingand installation manual and all other applicable docu-ments, as well as adherence to the maintenance and in-spection conditions.a Caution!Any improper use is forbidden.3.3 Care• Clean the exterior of your appliance with a damp clothand a little soap.h NoteDo not use scouring or cleaning agents, whichmight damage the housing or plastic fittings.3.4 Recycling and disposalBoth your Valliant ecoTEC plus 937 boiler and its pa-ckaging consist mainly of recyclable raw materials.3.4.1 EquipmentDo not dispose of your Valliant ecoTEC plus 937 boileror any of its accessories with household waste. Makesure the old appliance and any accessories are disposedof properly.3.4.2 PackagingPlease leave the disposal of the transport packaging tothe qualified servicing company which installed the ap-pliance.h NotePlease observe the applicable national legal re-gulations.Instructions on operation 3