Siemens LMV52.240B1 - LMV5 will Not Start (Stays in Phase 12)

LMVSeriesTechnicalInstructions 
DocumentNo.LV5‐1000
SCCInc. Page11 Section7
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LMV5WillNotStart(StaysinPhase12)
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1. EnsurethattheLMV5isinautomaticmodethroughthefollowingmenupath:
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ManualOperation>Autom/Manual/Off=Automatic
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2. The burner will not start if the safety loop is open.Verify that there is 120 VAC on both
terminalsX3‐03.1andX3‐04.1.
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3. Verifythatthereis120VACatburnerswitchinputterminalX5‐03.1.
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4. VerifythattheLMV5isnotinalarm.Ifso,correcttheissuecausingthealarmandresetthe
fault.
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5. Verifythatignitionpositionsaredefinedforallactivatedactuators,includingtheVSD.This
canbedonethroughthefollowingmenupath:
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Params&Display>RatioControl>Gas/OilSettings>SpecialPositions>IgnitionPos
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6. Verifythattheactualvalueoftheboilerislessthantheswitchonthresholdoftheburner
(setpoint+SD_ModOn).
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