Toshiba ESTIA R32 HWT-1101F21MT6W-E, Manual

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TOSHIBA I 47 TOSHIBA I 47
Error
Code
Diagnostics of functional operation
Determination and measures
Technical cause
Backup
present
Automatic
reset
P15
Detection of a gas leakage
- If the hot gas temperature sensor (TD)
exceeds 106°C for more than 10 minutes
- If the suction gas temperature sensor (TS)
reaches 60°C during cooling or 40°C during
heating for 10 consecutive minutes
If TG≤TC -10K and TG≤TWI -15K
was detected for 10 minutes (hot water
supply, heating)
- If TG≤TE -12K was detected for 10 minutes
(cooling)
O X
1. Check the cooling circuit (gas leakage)
2. Check whether the service valve is fully open
3. Pulse modulation valve defect
4. Check lines for kinks
5. Check the resistance value of the drain
temperature sensor (TD) and the air intake
temperature sensor (TS)
6. Check the PD sensor with the remote control
P19
4-way check valve fault
If the coil temperature sensor (TE) reaches
30°C or the suction gas temperature sensor
(TS) reaches 50°C during operation of the
heat pump
O X
1. Check the operation of the 4-way valve and the
coil properties
2. Pulse modulation valve defect
3. Check the resistance value of the heat
exchanger (TE) temperature sensor and air
intake temperature sensor (TS)
P20
High-pressure protection mode
- If an abnormal stop occurs because of the
high-pressure relief control
- If the high pressure sensor (PD) detects
4.05 MPa
- If the heat exchange temperature sensor
(TL) detects 63ºC during cooling mode
- If the water outlet sensor (TWO) detects
60°C during heating or hot water supply
mode
O X
1. Check whether the service valve is fully open
2. Pulse modulation valve defect
3. Check the outdoor unit fan system
(including for blockages)
4. Overfilling with refrigerant
5. Check the resistance value of the heat exchange
temperature sensor (TL) and the water outlet
temperature sensor (TWO)
6. Check the value of the high pressure sensor (PD)
7. Water pipe is too short. Install a buffer tank
or set the temperature lower
P22
Outdoor unit fan system fault
If the DC fan reference point measurement
fails, motor winding short circuit, loss of rotor
synchronization due to motor operation fault
or abnormal motor current (e.g., blocked
rotor)
O X
1. Check the blocked state of the motor fan
2. Check the cable connection of the fan motor
3. Check the power supply voltage
(AC220~230 V±10%: 1-phase unit)
(AC380~400 V±10%: 3-phase unit)
P26
Short circuit error in the compressor
drive element
If an abnormal short circuit of the IGBT
occurs
O X
1. P26 anomaly during operation with disconnected
compressor wiring
- Check the control board
2. No anomaly during operation with disconnected
compressor wiring
- Compressor winding short circuit
P29
Compressor rotor position error
The rotor position in the compressor cannot
be determined
O X
1. Despite the fact that the connection lead wire
of the compressor is not connected, it stops due
to an anomaly in the position detection
- Replace the control board of the inverter
2. Check the winding resistance of the compressor
In the event of a short circuit, replace the com-
pressor
P31
Fault occurs in the slave Hydrobox
when a fault occurs in the master
Hydrobox
X O
1. Check the remote control connection
2. Remote control defect
3. Set the address number from DN_12 to 14
correctly for each Hydrobox
FAUL
T SYMPTOMS