D | IAG | N O | STIC CHA | RT |
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1 | FL AS | H |
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| Symptom: | O ne or bot h of theindicator | lightson theIR Beams | are not on |
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IR Beams |
| wire ope | n |
| steadi ly. |
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| •Inspectsensorw ires foran electricalshort(eg. stapleinwire), correctwiring |
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(broken | or disc onnect ed). |
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| polarity (black/w hitew ires reversed), brokenordisconnectedwires,replace/attach |
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| as needed. |
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| OR |
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| •Disconnectallwires fromthe | opener. |
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| •Rem ove beams from brackets and shorten |
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| back each ofsensor. |
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2 | FL A | SH | ES |
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| •Re- attach sending eye to openerusingsh ortenedwiresIfsendingeye. indicator |
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| lightg lows steadily,attach the receiving eye. |
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IR Be a ms | wireshorted or |
| •Alignbeams.Ifthe | indicatorligh | ts glow, replace thewires forthebeams.Ifthe |
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blac | k/white wirereversed. |
| sensorindicatorligh | ts do notligh t, replace theIR Beams. |
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3 | FL A | SH | ES |
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| Symptom: | LE D | isnot liton do | or control. |
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| •Che ck polarityofth e wire connectiontothe opener. |
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Door | c ontrol or |
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| •Inspectdoorcontrol/wires foran electricalshort(eg. stapleinw ire),replaceas |
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wireshorted. |
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| needed. |
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| •Disconnectw ires atdoorcontrol,touch wirestogetherIfopeneractivates,replace. |
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| doorcontrol. |
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| •Ifopenerdoes notactivate, disconnectdoorcontrolw iresfromopenerMomentarily. |
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| shortacrossredand wh ite terminalsw ithjumperwire.Ifopeneractivates,replace |
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| doorcontrolw ires. |
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4 | FLA | SHES |
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| Symptom: | Sendi ng indic ator light glows steadily, receivingindicator lightis |
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IR Be a ms | slightly |
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| dim or flas hing. |
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| •Rea lign receiving eye sensor,clean lens and securebrackets. |
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misa ligned |
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(dim or flashingLED | ). |
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5 | FLA | SHES |
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| Symptom: | The RP M | Sensor = | Short | (6- 8") . |
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P os sibleRPM | sensor |
| •Unp lug | unito reset.Try to operate opener,check diagnosticcode. |
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| •Ifitisstillflash ing 5 | times and openermoves | mm | theAPE |
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failureUnpl. ugto | reset. |
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| (A bsoluteP ositioning E ncoder)may need tobe replaced,fordetailscontactyour |
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| Cha mberlain M | erlin ProfessionalDea ler. |
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6 | FLA | SHES |
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| Symptom: | D oor | willnot ope n or close |
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Possible A PE | erroron |
| •Turn th e powe roffand remove the StandbyPower Unit(S PU) | ifinstalled. |
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| •Tu rnpowe rback onand plug | the SPU | back in.Ifopenerfailstooperatecorrectly |
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startup. |
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| afterresetting, contactyourC h amberlain MerlinProfessionalDealer |
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7 | FL AS |
| HE | S |
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| Symptom: | D oor | fails to open | a llthe way |
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Ov er c urrent |
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| •Turn th e powe roffand remove the SPU | ifinstalled. |
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| •Tu rnpowe rback onand plug | the SPU | back inifinstalledIfopenerfailsto. |
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| operate correctlyafterresetting | contactyourChamberlainMerlin Professional |
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| Dea ler. |
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1 0 | to15 | FLAS | HES |
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| Symptom: | O pe ner wilnot ope | n or close thedoor |
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| •Co ntactyourC ha mberlainM erlin ProfessionalDealer. |
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System Fai lure |
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| •Re porth e numberofflash es as the faultreference. |
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15
