Vaillant AROTHERM VWL ../2 A series Operating Instructions Manual

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Vaillant AROTHERM VWL ../2 A series Operating Instructions Manual Manual pdf 16 page image

6 Troubleshooting16 Operating instructions aroTHERM 0020151761_043. Do not clean the product with a high-pressure cleaner.4. At regular intervals, check that nobranches or leaves have gatheredaround the product.5.6.2 Checking the maintenanceplanDanger!Risk of injury and risk of ma-terial damage due to neg-lected or incorrect mainten-ance and repairs.Neglected or incorrect mainten-ance work or repairs may leadto personal injury or damage tothe product.▶ Never attempt to carry outmaintenance work or repairson the product.▶ Employ an authorised heat-ing specialist company tocomplete such work. We re-commend making a mainten-ance agreement.1. Regular inspection/maintenance ofyour product by a competent personis a prerequisite for ensuring that thesystem is constantly ready and safefor operation, reliable and has a longservice life.NoteFailure to carry out mainten-ance and repair work, and non-compliance with the specifiedinspection, maintenance andreplacement intervals, leads toa loss of potential guaranteeclaims. We recommend makinga maintenance agreement witha competent person.2. The maintenance intervals depend onthe local conditions and the use of theproduct.3. Have parts that are relevant to thefunction and safety replaced by a com-petent person.5.7 Having the producttemporarily decommissioned▶ If, during long periods of absence, thepower supply to the dwelling and to theproduct is interrupted, have the heat-ing system drained by your competentperson or have it sufficiently protectedagainst frost.6 Troubleshooting6.1 Reading the fault messageFault 01/3Back42Coding resistorDeleteFault messages have priority over all otherdisplays and are shown instead of the ba-sic display. If several faults occur at thesame time, these are each displayed al-ternately for two seconds each.▶ If your product displays a fault mes-sage, contact a competent person.▶ To find out more information about thestatus of your product, call up the "LiveMonitor" (→ Page 13).