Diagnostic Chart - Chamberlain HD620EV Manual

DiagnosticChart
Your garagedoor opener is programmedwithself-diagnostic capabilities. T he UPand DOWNarrowson the garagedoor opener flashthediagnosticcodes.
DIAG NOSTIC CODE SYMPTO M SOLUTIO N
Up Arrow DownArrow
Flash(es) Flash(es)
1 1 The garagedoor openerwill notcloseandthe light Safetysensorsare notinstalled,connected,or wiresmaybe cut. Inspect s ensorwiresfor a
bulbsflash, disconnectedor cutwire.
1 2 The garagedoor openerwill notcloseandthe light There is a shortor reversedwire for thesafetysensors.Inspect s afetysensorwire at all stapleand
bulbsflash, connectionpoints,replacewire or correct a s needed
1 3 The door controlwill notfunction. The wiresfor the door controlare shortedor thedoor controlis faulty.Inspect s afetysensorwire atall
staplepointsandconnectionpointsand replacewire or correctas needed.
1 4 The garagedoor openerwill notcloseandthe light Safetysensorsare misalignedor were momentarilyobstructed. R ealignbothsensorsto ensureboth
bulbsflash. LEDsare steadyand notflickering.Makesurenothingis hangingor mountedon the doorthatwould
interruptthe sensor'spathwhiledosing.
1 5 Door moves6-8" stopsor reverses. Manuallyopenand closethe door.Checkfor bindingor obstructions, suchasa brokenspringor door
lock,correctas needed.Checkwiring connectionsat travelmoduleand at the logicboard.Replace
travelmodule ifnecessary.
No movement, o nly a single dick. Manuallyopenand closethe door.Checkfor bindingor obstructions, suchasa brokenspringor door
lock,correctas needed.Replacelogicboardif necessary.
Openerhurnsfor 1-2 secondsnomovement. Manuallyopenand closethe door.Checkfor bindingor obstructions, suchasa brokenspringor door
lock,correctas needed.Replacemotorifnecessary.
1 6 Door coastsafter ithas cometo a completestop. Programtravelto coastingpositionor have door balancedby a traineddoor systems technidan.
2 1-5 No movement, o r sound. Replacelogicboard.
3 2 Unable tosetthe travelor retainposition. Checktravel modulefor proper assembly, r eplaceif necessary.
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