Hitachi RAM-53NP3A RAM53NP3A User Manual

Hitachi

Product codes

RAM53NP3A

TROUBLESHOOTING

14-2

MULTIZONE __________________________________________________________ 14-32

COMMUNICATION ERROR DIAGNOSIS MULTIZONE RAM- 53NP3A / 68NP3A /
70NP4A / 130NP6A ____________________________________________________ 14-33

COMMUNICATION ERROR DIAGNOSIS MULTIZONE RAM-90NP5A ____________ 14-34

MONO SPLIT(RAC-18/25/35WPA, RAC-25/35WXA, RAC-25/35FXA) _____________ 14-34

MONO SPLIT (RAC-50WXA, RAC-50FXA __________________________________ 14-35

MONO SPLIT (RAC-50/60/70WPA, RAC-50/60/70DPA) ________________________ 14-36

CHECKING POWER MODULE ____________________________________________ 14-38

RAC-25NPA, 35NPA, 50NPA & RAM-36NP2A, 53NP2A, 53NP3A, 68NP3A, 70NP4A,
130NP6A ____________________________________________________________ 14-38

RAM-90NP5A _________________________________________________________ 14-38

RAC-18/25WPA, RAC-25/35/50WXA, RAC-25/35/50FXA _______________________ 14-39

RAC-35WPA __________________________________________________________ 14-39

RAC-50/60/70WPA, & RAC-50/60/70DPA ___________________________________ 14-40

THERMISTOR _________________________________________________________ 14-41

Name and role of each thermistor _________________________________________ 14-41

Reference value for thermistor’s resistance and temperature ____________________ 14-41

Monozone Outdoor _____________________________________________________ 14-42