Siemens LMV51.140C1 - LMV5 will Not Start (Stays in Phase 12)

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