"Tech Tips" RAC/PAC - Panasonic
"Tech Tips" RAC/PAC - Panasonic
"Tech Tips" RAC/PAC - Panasonic
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X = OFF<br />
0 = ON<br />
E01: Indoor/Outdoor Communication Failure<br />
Lamps Quiet Timer Operation<br />
Condition (3) (2) (1)<br />
E01 X X 0<br />
Perform the following check<br />
Is the voltage of about 12 VDC<br />
Or more given between the terminals<br />
2 and 3 on the outdoor unit terminal plate<br />
(Serial Communication Line) ?<br />
(Fig. 1)<br />
Yes<br />
Cont.<br />
Voltmeter<br />
- +<br />
V<br />
Outdoor unit<br />
1 2 3 4 5 6<br />
1 2 3<br />
Indoor Unit<br />
Fig.1<br />
NO<br />
YES<br />
Defect or connection error<br />
In the inter-connecting wires.<br />
Power<br />
Fig. 2<br />
1 2 3<br />
Indoor Unit<br />
- V +<br />
Voltmete<br />
r<br />
1. Turn OFF the power and wait until the power lamp (LED)<br />
Of the outdoor unit controller is turned OFF.<br />
2. Disconnect the wire from the terminal 3 on the indoor unit<br />
Terminal plate. (Fig. 2)<br />
3. Turn ON the power.<br />
_<br />
Is the voltage of about 22 VDC to<br />
24 VDC given between the terminals<br />
2 and 3 on the indoor unit terminal plate<br />
(Serial Communication Line) ?<br />
(Fig. 2)<br />
NO<br />
Defect in the indoor unit<br />
P.C. board<br />
Outdoor Unit<br />
1 2 3 4 5 6<br />
X<br />
Power<br />
10
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