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

SiAU18-715

7. Troubleshooting for Outdoor Unit

7.1

Faulty Outdoor Unit PCB

E1
Remote
Controller
Display
Applicable AII outdoor unit models
Models
Method of Check data from E²PROM
Malfunction
Detection
Malfunction When data could not be correctly received from the E²PROM
Decision E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power
supply is turned off.
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
Defect of outdoor unit PCB (A1P)
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
YES

Troubleshooting for Outdoor Unit

External factor other than
malfunction (for example,
noise etc.).
Replace the outdoor unit
main PC Board (A1P).
(Q0550)
357