11
Check plug outlet vohage
Power supply faulty
Plug lamp off
Plug lamp on
Check operation
Voltage 115V
No response
Chock main body
terminal block voltage
Response to
remote control
No response to remote control.
Response to main body switch only.
Synchronize remote control
(See page 6.)
Some response to remote controllor and main body switch
No voltage
NG
OK
Normal
Voltage 115V
Change each mode.
Main board malfunction
No voltage
Plug faulty
Plug in
Check plug lamp
Power supply cord faulty
When problem cannot be solved
Check in the following order:
(1) Remote control battery exhaustion
(2) Check junction circuit continuity o
fmain board and switch board
(3) Remote control malfunction
(4) Main body switch board malfunction
(5) Main board manlunction
Criteria for judgment of main circuit board malfunction
(1) Load which should be moving is not moving. If voltage is not detected at the terminal, the problem is the main board.
(2) Load which should be moving is not moving. If voltage is detected at the terminal, the problem is the load.
(3) When it is not determinable, disconnect the wiring of the load that is not moving from the main board, apply voltage directly
to the load to checkif the load is normal. If the load is normal, the problem is the main board.
Minimum set temperature.
Maximum fan speed.
Set the room temperature thermistor at
86˚F (30˚C) or higher by warming up with
body heat.
Compressor runs
within five minutes.
Cool side air blower
runs.
Warm side air
blower runs.
Compressor does not run
within five minutes. Cool
side air blower runs.
Warm side air blower
does not run.
Compressor does not run
within five minutes.
Cool side air blower runs.
Warm side air blower
runs.
Either cool side air blower
or warm side air blower
does not run.
(1) Thermistor
malfunction
(2) Main board
malfunction
(1) Malfunction of air
blower which is not
running
(2) Main board
malfunction
Any of the previous
three items does
not run.
Evaporator cools
down in approx.
ten minutes.
Evaporator does
not cool down
after ten minutes.
(1) Blockage of refrigeration
cycle
(2) No coolant
In the case of no coolant,
evaporator inlet port cools
down, but outlet port does not.
(1) OLP malfunction
(2) Compressor
malfunction
(3) Main board
malfunction
TROUBLESHOOTING
When problem is unclear (also when there is a cooling-down error)
TAD-T32G (Service Manual) 07.1.17 3:03 PM ページ 11
