Grandaire 4860 - Troubleshooting

25
For 4860 model
15
21
18
19
16
14
20
22
17
13
12
10
11
8
9
1
2
3
4
5
6
7
33
36
34
35
23
24
25
26
32
27
30
31
29
28
The photo is just for reference,actual unit will verify.
CUT OFF J2 JUMP FOR 48K MODEL.
THE FACTORY SETTING FOR 60K MODEL,
Main Control Board
Drive Board
EEPROM
chip