9.4.2 Outdoor unit trouble shooting
9.4.2.1 E0(Outdoor EEPROM malfunction) error diagnosis and solution
Error Code
E0
Malfunction decision
conditions
PCB main chip does not receive feedback from EEPROM chip
Supposed causes
●
Installation mistake
●
PCB faulty
Trouble shooting:
If the EEPROM chip
is welded on PCB,
replace the PCB
directly. Otherwise,
check whether the
EEPROM chip
plugged in PCB well?
Yes
No
Yes
Insert the EEPROM well
Replace the outdoor main board
Outdoor EEPROM malfunction
EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.
For the location of EEPROM chip, please refer to the below photos.
Outdoor PCB(M3OC-30HRFN1-M)
Содержание M2OC-18HFN1-M
Страница 19: ...8 Wiring Diagrams 8 1 Wiring diagram of 1 drive 2 outdoor M2OC 18HFN1 M M2OD 18HFN1 M...
Страница 20: ...PCB board of M2OC 18HFN1 M M2OD 18HFN1 M...
Страница 21: ...IPM board of M2OC 18HFN1 M...
Страница 22: ...IPM board of M2OD 18HFN1 M...
Страница 23: ...8 2 Wiring diagram of 1 drive 3 outdoor M3OD 27HRDN1 M M3OC 30HRFN1 M...
Страница 24: ...PCB board of M3OC 30HRFN1 M...
Страница 25: ...IPM board of M3OC 30HRFN1 M...
Страница 26: ...PCB board of M3OD 27HRDN1 M...
Страница 27: ...IPM board of M3OD 27HRDN1 M...
Страница 28: ...8 3 Wiring diagram of 1 drive 4 outdoor M4OC 36HRFN1 M...
Страница 29: ...PCB board of M4OC 36HRFN1 M...
Страница 30: ...IPM board of M4OC 36HRFN1 M...
Страница 31: ...PFC board of M4OC 36HRFN1 M...
Страница 66: ...IPM for dual tri zone IPM for qua zone P N for dual tri zone...
Страница 67: ...P N for qua zone...
Страница 68: ...bridge rectifier for dual tri zone bridge rectifier for qua zone...
Страница 69: ...Remark Measure the DC voltage between and port The normal value should be 190V 250V...
Страница 71: ...Two ports of the inductance Inductance...
Страница 72: ......
Страница 77: ......
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Страница 96: ...6 EXV check Disconnect the connectors...
Страница 97: ...Resistance to EXV coil Color of lead wire Normal Value Red Blue About 50 Red Yellow Brown Orange Brown White...
Страница 98: ...Red Blue Red Yellow...
Страница 99: ...Brown Orange Brown White...
Страница 114: ...Screws of front panel Screws of right rear panel Screws of top cover...
Страница 122: ...Screws of big handle Screws of right rear panel Screws of water collector Screws of terminal board...
Страница 128: ......