Daikin DX17VSS B Series Installation Instructions Manual page 38
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Also See for DX17VSS B Series:
- Installation instructions manual (53 pages) ,
- Installation instructions manual (156 pages) ,
- Service instructions manual (122 pages)
T
roubleshooTing
N
t
etwork
roubleshootiNg
If a network communication error code has occurred, use the
following steps to help troubleshoot the system. (For network
communication error codes, refer to the table below and the
tables of error codes for outdoor unit and indoor unit.)
After any wiring changes have been made or DS1 dip switches
on the outdoor unit control board have been changed, apply
power to the system and see if the error codes have cleared.
1. Confirm low voltage wiring is correct per installation
instructions. Check for miswiring. (i.e. Terminal 1 and
2 is reversed.)
NOTE: A removable plug connector is provided with the
control to make thermostat wire connections. This plug may be
removed, wire connections made to the plug, and replaced. It
is strongly recommended that you do not connect more than
two wires into a single terminal in the field because there
is a risk of the wires becoming loose, which may result in
intermittent operation.
LED COLOR
Red Communications LED
Outdoor unit control
board: (H1P)
Indoor unit control
board :(H2P)
Green Receive LED
1 Steady Flash
Outdoor unit control
board:(H2P)
Indoor unit control
Rapid Flashing
board:(H3P)
01_EN_DZ17VSA.indd
38
LED Status
Indication
Off
Normal condition
1 Flash
Communications failure
2 Flash
Out-of-box reset
No power
Off
Communications error
No network found
Normal network traffic
On Solid
Terminal 1/Terminal 2 miss-wire
2. Check wires for damage. (i.e. Broken wire at terminal,
broken inside wire nuts or damaged cable betwee
nunits.)
3. Perform continuity check on wires to make sure
cable is OK. Replace the cable if necessary
4. Change both dip switches of DS1 on the outdoor unit
control board to the opposite position. See image
below.
DS1
ON*
(*)Default factory setting.
OFF
1
2
The integrated control module has some onboard tools that
can be used to troubleshoot the network. These tools are:
red communications LED, green receive (Rx) LED, and the
learn button.
• Red communications LED – Indicates the status of the
network. The table below indicates the LED status and
the corresponding potential problem.
• Green receive LED – Indicates network traffic. The table
below indicates the LED status and the corresponding
potential problem.
• LEARN button – Used to reset the network. Press the
button for approximately 5 seconds to reset the network.
Probable Causes
• None
• None
• Unknown packet is received
• Depress learn button
• Communications failure
• Verify wiring connection
• Control power up
• None
• Learn button depressed
• Check circuit breakers and fuses; Reset/Replace if
needed
• No power to unit
• Reset network by depressing learn button
• Open fuse
• Check communication wires (terminal 1/terminal 2
• Communication error
wires); Replace if needed
• Check for shorts in low voltage wiring.
• Broken/disconnected communication
• Check communication wires (terminal 1/terminal 2
wire(s)
wires); Replace if needed
• Unit is installed as a legacy/traditional
• Check installation type (legacy/traditional or com-
system
municating)
• Control is "talking" on network as expected
• None
• Terminal 1 and Terminal 2 wires reversed
at indoor unit, thermostat, or outdoor unit
• Short between terminal 1 and terminal
• Check communication wires (terminal 1/terminal 2
2 wires
wires); Replace if needed
• Short between terminal 1 or terminal 2 two
wires and terminal C (24VAC) or terminal
R (24VAC, COM)
38
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2020/11/16
15:01:55
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