Toshiba RAV-RM2801DTP Series Service Manual page 42

Outline of judgment
The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with
the following method.
Method to judge the erroneous position by display panel of the indoor unit
(lamp display of the wireless receiving part)
The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis
are displayed restricted to the following cases if a protective circuit works.
Lamp indication
Operation Timer Ready
No indication at all
Operation Timer Ready
Flash
Operation Timer Ready
Flash
Operation Timer Ready
Alternate flash
Operation Timer Ready
Alternate flash
∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.
Check code
— Power supply OFF or miswiring between lamp indication unit and indoor unit
Receiving
E01
trouble
Sending
E02
trouble
Communication stop
E03
E08 Duplicated indoor unit No.
E09 Duplicated master units of remote controller
UART communication trouble
E10
Wire connection
E18
(Communication stop between indoor header and follower)
Miswiring between indoor unit and outdoor unit or connection trouble
E04
(Communication stop between indoor and outdoor units)
P10 Overflow was detected.
P12 Indoor DC fan trouble
Outdoor unit discharge temp. trouble
P03
Outdoor high pressure system trouble
P04
Negative phase detection trouble
P05
Heat sink overheat trouble
P07
Gas leak detection trouble
P15
4-way valve system trouble (Indoor or outdoor unit judged.)
P19
P20 Outdoor unit high pressure protection
Outdoor unit: Outdoor unit trouble
P22
Outdoor unit: Inverter Idc operation
P26
Outdoor unit: Position detection trouble
P29
Stopped because trouble of other indoor unit in a group
P31
(Check codes of E03/L03/L07/L08)
: Go off,
Cause of trouble occurrence
⎫
⎫
Receiving unit
⎬
⎪
Miswiring or wire connection
⎭
⎬
between receiving unit and indoor unit
⎪
⎭
between indoor units, Indoor power OFF
trouble
⎫
⎪
⎬ Protective device of indoor unit worked.
⎪
⎭
⎫
⎬
⎭
⎫
⎪
⎬
⎪
⎭
⎫
⎪
⎬
⎪
⎭
- 42 -
: Go on, : Flash (0.5 sec.)
trouble
⎫
Setup
trouble
⎬
⎭
Protective device of
outdoor unit worked.
Outdoor unit trouble
Protective device of
outdoor unit worked.
∗1
∗1