The Rensa Servicewijzer is the app for the service technician of central heating boilers, boilers and ventilation units. Find the correct (replaceable) part with the barcode reader during your repair or maintenance job, get real-time price and stock information and / or place an order immediately. With the Rensa Servicewijzer you can: - Consult fault codes per device - Quickly find the right part with the barcode reader - Transfer ordered orders directly to Rensa as an order - View an overview