Error Mode Detected By Outdoor Unit - Toshiba RAV-SP454ATP-E Service Manual

Error mode detected by outdoor unit

Check code
Indoor unit
after
4 series
Disconnection, short-circuit of
F04 ∗
discharge temp. sensor (TD)
Disconnection, or short-circuit of
F06 ∗
outdoor temp. sensor (TE)
Disconnection, or short-circuit of
F07
outdoor temp. sensor (TL)
Disconnection, or short-circuit of
F12 ∗
suction temp. sensor (TS)
Miss-mounting of outdoor temp.
F15
sensor (TE, TS)
Disconnection, or short-circuit of
F08 ∗
outside temp. sensor (TO)
Disconnection, or short-circuit of heat
F13
sink temp. sensor (TH)
F31 Outdoor P .C. EEPROM error
L10 Incorrect setting of service P .C. board
Communication error between MCUs
L29 ∗
on outdoor P .C. board
Heat sink overheat error
∗ Heat sink temp. sensor detected
P07
over the specified temperature.
Detection of gas leak
∗ Discharge temp. sensor (TD),
P15
Suction temp. sensor (TS) detected
temperature over the specified temp.
4-way valve inverse error
∗ After heating operation has started,
indoor heat exchanger temp. lowers
P19 under the specified temp.
∗ After heating operation has started,
outdoor heat exchanger / suction
temp. rises over the specified temp.
Compressor break down
∗ Although operation has started,
H01 ∗
operation frequency decreases and
operation stops.
Compressor lock
H02 ∗
∗ Over-current detection after
compressor start-up
H03 ∗
Current detection circuit error
∗
: AP40 to AP56 is only.
SVM-12085_051-114.indd 56 SVM-12085_051-114.indd 56
Operation of diagnostic function
Status of
Cause of operation
air conditioner
Stop
Stop
Stop
Stop
Stop
Continue
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Condition
1. Check discharge temp. sensor (TD).
Displayed when
error is detected
2. Check outdoor P .C. board.
1. Check temp. sensor (TE).
Displayed when
error is detected
2. Check outdoor P .C. board.
1. Check temp. sensor (TL).
Displayed when
error is detected
2. Check outdoor P .C. board.
1. Check suction temp. sensor (TS).
Displayed when
error is detected
2. Check outdoor P .C. board.
1. Check temp. sensor (TE, TS).
Displayed when
error is detected
2. Check outdoor P .C. board.
1. Check outside temp. sensor (TO).
Displayed when
error is detected
2. Check outdoor P .C. board.
Displayed when 1. Check outdoor P .C. board.
error is detected
Displayed when 1. Check outdoor P .C. board.
error is detected
Displayed when 1. Outdoor service P .C. board
error is detected Check model type setting jumper wire.
Displayed when 1. Check outdoor P .C. board.
error is detected
1. Check screw tightening between PC. Board and heat
Displayed when
sink and check radiator grease.
error is detected
2. Check heat sink cooling.
1. Check gas leak.
2. Check whether the service valve is fully opened.
Displayed when
3. Check PMV (Pulse Motor Valve).
error is detected
4. Check broken pipe.
5. Check discharge temp. sensor (TD), suction temp.
sensor (TS).
1. Check operation of 4-way valve.
2. Check outdoor heat exchanger (TE), suction temp.
sensor (TS).
Displayed when
error is detected 3. Check indoor heat exchanger sensor (TC).
4. Check 4-way valve coil.
5. Check PMV (Pulse Motor Valve).
1. Check power supply voltage. (AC198 to 264V)
Displayed when
2. Overload operation of refrigerating cycle
error is detected
1. Trouble of compressor (Lock, etc.): Replace compressor.
Displayed when
2. Wiring error of compressor (Open circuit)
error is detected
Displayed when 1. Check outdoor P .C. board. (AC current detection circuit)
error is detected
– 56 –
FILE NO. SVM-12085
Judgment and measures
12/06/12 11:15 AM 12/06/12 11:15 AM