Checking the indoor unit electrical installation
Yes
Is the "timer lamp" (orange) of the indoor unit blinking?
Introduction
Check results and next check items
Yes Yes
Yes
−
Yes
−
No No No
No
No
−
Check 1 Check 2 Check 3 Check 4
Move on to "the timer lamp blinks."
(Pages 250 and subsequent.)
Is the "monitoring lamp" (yellow) of the indoor unit
blinking?
Set the remote control unit to cooling mode, temperature setting 16℃ (summer), heating mode, temperature setting
32℃ (winter) and operate the product.
Check 2: Has the product received the remote control signal and has the "operation lamp" gone on? (Yes/No)
If you responded "Yes" to Check 2:
Check 3: Is the compressor of the outdoor unit running? (Yes/No)
If you responded "No" to Check 2:
Check 4: Does the "emergency operation switch" work? (Yes/No)
First check the failure phenomenon and status, and then move on to elaborate diagnosis.
Go on to "checking the electrical installation
of the outdoor unit." (page 262.)
Initiating troubleshooting
No
No
Yes
Turn off the power, wait at least 5 seconds, turn it back on, and observe the way the horizontal vanes move for about
30 seconds.
Check 1: Have the horizontal vanes moved? (Yes/No)
Go on to "The power will not become turned on."
(page 232)
Next check item
Go on to "The compressor will not run." (page 240)
Go on to "The product will not receive the remote
control signal." (page 234)
– 230 –
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