Daikin VRV II REYQ8MY1B, Service Manual

Page: 174 / 309

Si39-306 Troubleshooting by Indication on the Remote Controller
Troubleshooting 163
2.13
“
E1
”
Outdoor Unit: PC Board Defect
Remote
Controller
Display
E1
Applicable
Models REYQ8~48M
Method of
Malfunction
Detection Check data from E²PROM
Malfunction
Decision
Conditions When data could not be correctly received from the E²PROM
E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power
supply is turned off.
Supposed
Causes
„
Defect of outdoor unit PC board (A1P)
Troubleshooting
Turn off the power once and
turn on again.
Return to normal?
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
External factor other than
malfunction (for example,
noise etc.).
Replace the outdoor unit
main P.C. Board A1P.
(V3064)
NO