Toshiba RAV-SP804ATP-E Installation Manual page 49

Verifying an abnormal state in the past although the abnormal state no longer occurs
1. Set bit 1 of DIP switch SW803 to ON.
2. Jot down the states of LED800 to LED804. (Display mode 1)
3. Press SW800 for at least 1 second. The LED status changes to display mode 2.
4. Find an error whose display mode 1 equals the LED states jotted down and display mode 2 equals the current
flashing states of LED800 to LED804 from the following table to identify the error.
• An outside air temperature (TO) sensor error can be checked only while it occurs.
No. Cause
1 Normal
2 Discharge (TD) sensor error
3 Heat exchanger (TE) sensor error
4 Heat exchanger (TL) sensor error
5 Outside air temperature (TO) sensor error
6 Suction (TS) sensor error
7 Heat sink (TH) sensor error
Outdoor temperature sensor (TE/TS)
8
connection error
9 Outdoor EEPROM error
10 Compressor breakdown
11 Compressor lock
12 Current detection circuit error
13 Thermostat for compressor activated
Model data not set (on the service P.C.
14
board)
15 MCU-MCU communication error
16 Discharge temperature error
Abnormal power (open phase detected or
17
abnormal voltage)
18 Heat sink overheat
19 Gas leak detected
20 4-way valve reverse error
21 High pressure release operation
22 Outdoor fan motor error
23 Compressor driver short-circuit protection
Position detection circuit error in one-line
24
display
EN-95
Display mode 1 Display mode 2
D800 D801 D802 D803 D804 D800 D801 D802
( :OFF
* The LEDs and DIP
switches are located
on the lower left of
the P.C. board of the
outdoor unit.
D803 D804
:ON :Flashing)
- 48 -
SW801 SW800
LED
D800
SW804
D801
D802
D803
D804
D805
SW803
SW802
Enlarged view of
LEDs
D800
D801
D802
D803
D804
D805
EN-96