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Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution
YES
NO
All indoor
unit remote controllers
of the same refrigerant system
display
U4
.
Are the
indoor-outdoor unit
transmission wirings
normal?
Has the
indoor or outdoor
unit PCB been
replaced, or has the
indoor-outdoor unit
transmission wiring
been modified?
NO
YES
Replace the indoor unit PCB
indicated by the error code
U4
.
Fix the indoor-outdoor
unit transmission wiring.
NO
YES
Reset the power supply.
Press and hold the
RESET
(BS5)
button on the master
outdoor unit PCB for 5 seconds.
∗
The unit will not operate for
up to 12 minutes.
A
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Summary of Contents for SkyAir RZQ-TA Series
Page 1: ...Service Manual Cooling Only 60 Hz Heat Pump 60 Hz RZR TA RZQ TA Series SiUS281811E...
Page 283: ...6L86 3DUW SSHQGL LULQJ LDJUDPV 2XWGRRU 8QLW QGRRU 8QLW Part 7 Appendix...
Page 284: ...LULQJ LDJUDPV 6L86 3DUW SSHQGL LULQJ LDJUDPV 2XWGRRU 8QLW 5 5 7 9 8 5 4 7 9 8 3D115455...
Page 285: ...6L86 LULQJ LDJUDPV 3DUW SSHQGL 5 5 7 9 8 5 4 7 9 8 3D115456...
Page 286: ...LULQJ LDJUDPV 6L86 3DUW SSHQGL QGRRU 8QLW 4 7 9 8 3D115647A...
Page 287: ...6L86 LULQJ LDJUDPV 3DUW SSHQGL 4 39 8 4 09 8 3D048116C...
Page 288: ...LULQJ LDJUDPV 6L86 3DUW SSHQGL 4 7 9 8 3D114844B...
Page 289: ...6L86 LULQJ LDJUDPV 3DUW SSHQGL 4 39 8 3D065984J...