Toshiba RAV-SM564ATJP-E Service Manual page 48

<Wireless remote controller type>
1. Before troubleshooting
1) Required tools/instruments
• ⊕ and ⊖ screwdrivers, spanners, radio cutting pliers, nippers, etc.
• Tester, thermometer, pressure gauge, etc.
2) Confirmation the following points before check
a) The following operations are normal.
1. Compressor does not operate.
• When 3-minutes delay (3 minutes after compressor OFF)
• When the outdoor unit in standby status due to the room temperature reached the setup
temperature
• When the timer is operating
• When indoor fan only operation mode
• When an overflow error is detected on the indoor unit
• When outside high-temperature operation controlled is in heating operation
• When Thermo-OFF setting by Application Control Kit (TCB-PCOS1E2)
2. Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
3. Outdoor fan does not rotate or air volume changes.
• When high-temperature release operation control is working in heating operation
• When outside low-temperature operation control is working in cooling operation
• When defrost operation is being performed
4. ON/OFF operation cannot be performed from remote controller.
• When forced operation is being performed
• When the control operation is being performed from outside/remote side
• When automatic address being set up
• When the test run is being performed by operation of the outdoor controller
a) Did you return the cabling to the initial positions?
b) Are connecting cables between indoor unit and receiving unit correct?
2. Troubleshooting procedure
(When the power is turned on at the first time or when indoor unit address setting is changed, the operation
will be performed after power-ON in 5 minutes or before.)
When a trouble occurred, check the parts along with the following procedure.
Trouble
1) Outline of judgment
The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with
the following method.
The errors can be identified by lamp indication of indoor unit (sensors of the receiving unit)
The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis
are displayed restricted to the following cases if a protective circuit works.
SVM-13072_001-050.indd 48 SVM-13072_001-050.indd 48
Confirmation of lamp display
→
(EX : When 4-way air discharge cassette type
wireless remote controller is connected)
→
– 48 –
FILE NO. SVM-13072
Check defective
position and parts.
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