Troubleshooting For Outdoor Unit; Faulty Outdoor Unit Pcb - Daikin E-Series Service Manual

SiENBE18-621

7. Troubleshooting for Outdoor Unit

7.1

Faulty Outdoor Unit PCB

E1
Remote Control
Display
Applicable
AII outdoor unit models
Models
Method of Check data from E
Malfunction
Detection
Malfunction
When data could not be correctly received from the E
2
Decision E
supply is turned off.
Conditions
" Defect of outdoor unit PCB (A1P)
Supposed
Causes
Troubleshooting
Troubleshooting
2
PROM
PROM : Type of nonvolatile memory. Maintains memory contents even when the power
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Turn off the power once and
turn on again.
Return to normal?
NO
2
PROM
YES

Troubleshooting for Outdoor Unit

External factor other than
malfunction (for example,
noise etc.).
Replace the outdoor unit
main PC Board (A1P).
(V3064)
307