Display E0,E5; Outdoor Pipe Temp Sensor Damage - Pioneer WYT Series Service Manual

2)

Outdoor pipe temp sensor damage.

Solution: Check and replace the sensor.
3) Outdoor PCB damage.
Solution: Check and replace the outdoor PCB.

10.5.5 Display E0,E5

:
Reason Indoor / outdoor communication damage.
Solution:
1) Check if the indoor and outdoor connections are correct. The terminal L and N which connect to indoor
unit shall correspond to each other on indoor and outdoor units. Measure the voltage on outdoor
terminal L and N (before display of E0 fault). If the voltage is "0", please replace indoor main PCB.
1 N L
2) If the 1 & N which connect to indoor unit voltage is normal, measure the voltage between the outdoor
terminal 1 and N. If the voltage change occurs between 0~24V (change pulse voltage), please replace
indoor PCB.
1 N L
3) If the 1 & N which connect to indoor unit voltage is normal, measure the voltage between the outdoor
terminal 1 and N. If the voltage change occurs between 0~12V( change pulse voltage), but there is no
24V, please replace outdoor PCB.
1 N L
4) If the 1 & N voltage is normal, measure the voltage between the outdoor terminal 1 and N. If the
voltage has no change, firstly replace the indoor main PCB. If the fault remains unsolved, replace the
outdoor PCB.
Air Conditioner Service Manual
Fail
OK
29