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3. Storingscode E3: Communicatiefout op printplaat van buitenunit
Knippert LED1 op de hoofdprintplaat van de
buitenunit?
JA
Hoofdprintplaat vervangen
NEE
Is de elektrische verbinding tussen de vermo-
gensprintplaat en CN4 van de hoofdprintplaat
OK?
NEE
Zorg voor een correcte verbinding
JA
Verwijder de elektrische verbinding tussen de
vermogensprintplaat en CN4 van de hoofdprint-
plaat. Meet u op de vermogensprintplaat CN1
tussen de 3e pen en de 4e pen 5 V?
JA
Hoofdprintplaat vervangen
NEE
Is de verbinding tussen IPM-module (positieve
pool) en CN12 van de vermogensprintplaat
OK?
NEE
Zorg voor een correcte verbinding
JA
Is de verbinding tussen IPM-module (negatieve
pool) en CN13 van de vermogensprintplaat
OK?
NEE
Zorg voor een correcte verbinding
JA
Meet u tussen CN12 en CN13 op de vermo-
gensprintplaat 277 - 345 V?
NEE
Vermogensprintplaat vervangen
JA
IPM-module vervangen
57
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