Troubleshooting Guide

ManualsBrandsPioneer ManualsHeatingLow-Ambient 9,000 BTU 0.75-Ton 23 SEER Wi-Fi Ductless Mini Split Inverter and Air Conditioner w/Heat Pump 208/230-Volt

Air Conditioner Service Manual

compressor stops for 3 min can the unit be recovered operation.

3. If unit have 6 times of over current stop-working protection continuously, this protection can’t be recovered

unless press ON/OFF button.

In the process of unit operation, once the compressor runs continuously more than 6 min, the counter of stop-

working protection will be reset to zero and re-start a new counting process.

Note: For different models, I

and I

have different programmed value.

4.2.10.4 IPM overheating protection

1. When IPM temperature T

IPM

≥87℃, the compressor will be frequency limited / reduced for IPM over temperature

protection.

2. When T

IPM

≥95℃, the AC unit stops working for AC system protection.

If T

IPM

＜87℃,and after compressor stopped for 3 min, can the unit be started to operate.

3. If unit have 6 times of IPM over temperature stop working protection continuously, this protection can’t be

recovered unless press ON/OFF button, and unit will show failure code.

In the process of operation, once the compressor runs continuously more than 6 min, the counter of over load

stop working protection will be reset to zero and re-start a new counting process.

The failure and times for protection will eliminate immediately once the unit to be switched off, or changed to fan

mode.

Note: If the defective failure can’t be recovered, the failure can’t eliminate even if operation mode changed.

4.2.11 Complementary

4.2.11.1 Energy saving (ECO)

Function effective on Cooling and Heating mode only.

On cooling mode, the set temperature range from 26℃ to 31℃,on heating mode, from 16℃ to 25℃.

4.2.11.2 TURBO

Function effective on Cooling, Heating, Fan and Auto modes, and fan speed operates on highest.

4.2.11.3 The communication control

If ODU PCB can’t get signal feedback from IDU for 2 min continuously, AC unit stops working and shows E0 error

code as IDU/ODU communication failure.

Once the IDU & ODU communication recovery, and also the compressor stopped for 3 min already, can the unit be

recovered to operate.

4.2.11.4 Louver control

Function effective on cooling, Fan and Auto modes, stop or start horizontal louver movement or set the desired

up/down air flow direction

4.2.11.5 swing control

Function effective on cooling, Fan and Auto modes, stop or start vertical louver movement or set the desired left/right

air flow direction

4.2.11.6 Health function

Turn on the indoor unit at first, press “HEALTH” to active this function, Do it again to deactivate it. When the HEALTH

function is initiated, the UVC Lights (depending on models) will be energized and running.

4.2.11.7 Auti-mildew function

Function effective on cooling mode, the indoor fan motor will keep operation for 15 minutes to dry the evaportor after

the outdoor unit stop when the room ambient temperature reaches the setting point.