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Goodman MSG-18HRN1W User Manual

Goodman MSG-18HRN1W
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22
Be sure all the wires (including power wires and connection wires)
are OK
Install good ones
Check for AC (208-230V) power supply outputs to outdoor
control board
Check if AC (208-230V) exists at primary coil
of outdoor (and indoor) of transformer
Outdoor (or indoor)
control board
is Defective
Check if AC 12V exists at secondary coil
in the outdoor control board
Take off the secondary plug of transformer, and then check if AC
12V exists at secondary coil ofoutdoor (and indoor) transformer
Outdoor (or indoor)
control board
is Defective
Outdoor (or indoor) transformer is defective
Yes
Yes
Yes
No
No
No
No
Yes
Diagnostic Chart (for 18k & 24k Models)
If, after energizing the unit, no indicator is lit and the unit cannot be operated, see the following chart.
TROUBLESHOOTING

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Goodman MSG-18HRN1W Specifications

General IconGeneral
BrandGoodman
ModelMSG-18HRN1W
CategoryAir Conditioner
LanguageEnglish

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