Toyotomi TAN2-A53EW Service Manual page 18

CHECK A FOLLOWING STEPS
fig. 1 Resistance of transformer
secondary blue
fig. 2 Voltage of TAN fan motor
Check the TAN PCB(main controller)
Measure the voltage between the
connector pins in the back of PCB
(main controller)
blue
red
yellow
TAN fan motor
connector
ELECTRIC CHARACTER
table 1 Sensor, temp. room
Temp. ( ) Resistance (k
10 47
15 37
20 29
25
23
30
18
35
15
tester
resisitance
primary red
attention
electric shock
tester
normal : 110V 230V
voltage
table 2 Sensor, temp. defrost
Sensor, temp. heat exchanger
) Temp. ( )
0
5
10
15
20
25
30
35
TROUBLESHOOTING GUIDE
Transformer resistance
primary red-red about 800
secondary
blue-blue
Check the power source
The transformer is located in inner part in the control box/
Measure taking off the connectors (primary & secondary)
fig. 3 Resistance of 4-way valve coil
Check of 4-way valve coil
Measure the resistance of 4-way valve coil.
4-way valve coil
tester
resistance
Resistance (k )
31
24
19
15
12
10
8
7
– 17 –
TAN TAG
about 430
about 3 about 2
about 1500 (20 )