Insufficient water flow, incorrect flow direction, defective flow switch.
Fan does not idle after auto reset (incorrect fan rpm). Reset button (pressed while burner is OFF) with emissions test switch turned to “hand symbol”īurner control switches to lockout. Setting mode for maximum or minimum rated input active for 30 minutes already Vitotronic 300 / Vitotronic 300-K, with Vitotronic 300 / Vitodens 200-W / Vitocontrol-S, with Vitotronic 100. Reset button pressed repeatedly or while burner is runningīoiler operates with high boiler water temperatureĮmissions test switch turned to “hand symbol” for 30 minutes alreadyīoiler operates with continuous relay test Code 0F is only displayed in the fault history. Please follow these safety instructions closely to prevent accidents and material losses. Vitodens 200 Boiler Error Codes Fault Codeīasic level of air pressure threshold in standby mode not correct Vitodens 300 Type WB3A ,49and66kW Gas fired wall mounted condensing boiler natural gas and LPG version VITODENS 300 5862 570 GB 5/2004 Dispose after installation.
Listed below are the common Viessmann fault codes as described by the boiler manufacturer along with a possible cause.
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