![]() ![]() ![]() Toll-Free (877) 853-3288 Service Call Overview.Most problems can be solved using the Installation, Start-up/Service and respective accessory manuals that are supplied with the boiler. Pay special attention to the coding address “000:_”, “OB8:_”, “045:_”. Using the information collected in Step 1, go over the programming of the control unit using the updated product manual. Copies of all Quick Start-up Guides must be kept in the Vitodens 200 Service Binder.įor boilers that have already been in service for some time, see the following steps. Following all steps in the Quick Start-up Guide would resolve up to 90% of the issues. There are Quick Start-up Guides for each respective boiler size and version. Record the boiler model number, gas type, venting type, system layout connected to boiler, accessory and equipment used (Low-Loss Header (LLH), mixing valves, etc).įor models WB2-24/32, and 44/60 there is now a version 2.0 in addition to the existing version 1.0.įor new installations, the first tool is always the Quick Start-up Guide. A copy is attached at the end of this document for convenience. Please use the Vitodens Diagnostics sheet if possible. Troubleshooting Steps When the Customer Calls It is important to avoid this assumption. ![]() When troubleshooting the Vitodens 200 avoid jumping to the premature conclusion that parts such as VR20, LGM etc., or the boiler are defective.Complete burner assembly (some due to damage of the inlet air damper).From our own experience, we have replaced the following components on the boilers in the following order:.The control needs between 2 and 60 seconds to process and transfer data. When changing the coding addresses the boiler must be restarted (power ON/OFF) at least once for the changes to take effect.Combustion flue gases and air intake (for direct vent systems).Inlet gas pressure (static and running).The following are items that do require measurements: Only a few measurements without burner calibrations need to be performed on the boiler.Off-grid power supply such as generators, battery back-up.Power supply issues (reversed polarity, improper grounding, Ground Fault Interrupted supply, or unstable power supply).Wrong pump designation, coding or assignment.Air in the gas line (specifically for LP).Wrong programming (coding) match to connected system.Air in the water system (at start-up, air must be purged completely for at least 1 hour). ![]()
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