Kaysun Zen On 2014, Service Manual

Page: 90 / 116

Troubleshooting
84 Electrical Control
For Ceiling & Floor
NO. Malfunction
Running
lamp
Timer
lamp
Defrosting
lamp
Alarm
lamp
1
Communication malfunction between indoor and outdoor
units
☆
X
☆
X
2 Open or short circuit of T1 temperature sensor X
☆
X X
3 Open or short circuit of T2 temperature sensor
☆
X X X
4 Open or short circuit of T3 temperature sensor X X
☆
X
5 Outdoor unit malfunction
☆ ☆ ☆ ☆
6 Indoor EEPROM malfunction
☆ ☆
X X
7 Full-water malfunction X X X
☆
8 Indoor fan speed is out of control X
☆
X
☆
9 Protection of low pressure
☆ ☆ ☆
X
LEDs’ for the indication of outdoor trouble
Type Contents LED2(Green) LED3(Yellow) LED4(Red)
Normal Normal running O X X
Normal Normal standby X O X
Trouble Phase sequence error X
☆
X
Trouble Lack of phase X X
☆
Trouble Open-circuit and short-circuit trouble of T3 X X O
Trouble Open-circuit and short-circuit trouble of T4
☆
X X
Trouble
Temperature protection of compressor
discharge
O X O
Trouble Protection of high pressure
☆ ☆
X
Trouble Protection of low pressure
☆
X
☆
Trouble Overload of current X
☆
O
Trouble High temperature protection of condenser
☆ ☆
O
Trouble Fan selection error
☆ ☆ ☆
O(light) X(off)
☆
(flash at 1Hz)
Note:
1. T3: Outdoor condenser temperature sensor
2. T4: Outdoor ambient temperature sensor