LG CT12 NR2 - Page 87

- 87 -
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4. Trouble Shooting
1VSQPTF
+VEHFXIFUIFSUIFXBZWBMWFQBSU
IBTBOZGBVMU
*UFNTGPSDIFDLJOH
$IFDLUIFXPSLJOHWPMUBHFPGUIFXBZ
WBMWF
$IFDLUIFXBZWBMWFDPJMSFTJTUBODF
$BVUJPO8IFOUIFNFBTVSFNFOUJTNBEFJOUIFTUBUFUIBUUIFFMFDUSJDJUZJTBQQMJFEDIFDLUIFUFTUFS
GPSCFJOHJOUIFNFBTVSFNFOUNPEFBOECFDBSFGVMUPBWPJEQPTTJCMFTIPSUPGUIFQBSUTPUIFS
UIBOUIFNFBTVSJOHQBSU
Ⲽ5IFNFBTVSFNFOUTIPVMECFNBEFBUUIFUJNFUPTUBSUIFBUJOHNPEFPQFSBUJPOBOEBUUIFUJNFPG
TUBOECZBGUFSPQFSBUJPO
⶯ Checking the output voltage of CN-4way (refer to next page)
⶯ Check the 4-way.valve coil resistance.
4FUUIFUFTUFSJO"$7PMUBHF.PEFBOEDIFDLUIFDVSSFOU
$IFDLUIFPVUQVUWPMUBHFCFUXFFOCPUIFOETPG$/8BZ$POOFDUPS
5IFTUBOEBSEPGOPSNBMWPMUBHFJT7Ⰽ
*GUIFNFBTVSFNFOUJTEJGGFSFOUGSPNUIFTUBOEBSESFQMBDF1$#"
4FUUIFUFTUFSJO3FTJTUBODF.PEFBOEDIFDLUIFDVSSFOU
.FBTVSFUIFSFTJTUBODFCFUXFFOUIFCPUIFOETPGBTJOHMFVOJUPG8BZWBMWFDPJM
5IFTUBOEBSEPGOPSNBMSFTJTUBODFJT⽪Ⰽ
*GUIFNFBTVSFNFOUJTEJGGFSFOUGSPNUIFTUBOEBSESFQMBDF8BZWBMWFDPJM
8BZ7BMWF$IFDL
6.7 Troubleshooting Outdoor Error
CH 21 (DC Peak / Comp IPM Fault)