14
LED
LED Status
Indication
Possible C auses
C orrective Action(s)
N otes & C autions
Off
• Norm al condition
• None
• None
• None
• Depres s once quickly for a
power-up reset
• Depres s and hold for 2
seconds for an out-of-box
reset
• Control power up
• Learn button depres sed
• No power
• No power to furnace
• Check fuses and circuit
break ers; replace/reset
• Comm unications error
• Open fus e
• Replace blown fuse
• Com munic ations error
• Check for s horts in low
voltage wiring sys tem
• Reset network by
depres sing learn button
• Check data 1/ data 2
voltages
• Brok en/ disconnected data
wire(s)
• Check com munic ations
wiring (data 1/ data 2
wires)
• Turn power OFF prior to
repair
• AC/HP is installed as a
legac y/ traditional s ystem
• Check wire connec tions at
terminal block
• Verify wires at terminal
blocks are securely twisted
together prior to inserting
into terminal block
• Verify installation
ty pe (legac y/ traditional or
comm unicating)
• Check data 1/ data 2
voltages
Rapid Flashing
• Norm al network traffic
• Control is “talk ing” on
network as expected
• None
• None
• Data 1 and data 2 wires reversed
at indoor unit, therm ostat, or
CT com patible outdoor unit
• Check c omm unications
wiring (data 1/ data 2
wires)
• Turn power OFF prior to
repair
• Short between data 1 and
data 2 wires
• Check wire connections at
terminal block
• Verify wires at terminal
blocks are securely twisted
together prior to inserting
into terminal block
• Short between data 1 or
data 2 wires and R
(24 VAC) or C (24 VAC
com mon)
• Check data 1/ data 2
voltages
• None
Green Receive LED
Off
• Turn power OFF prior to
repair
1 Steady Flash
• No network found
On Solid
• Data 1/ Data 2 miss -wire
Red Comm unic ations
LED
• Depres s LEARN Button
2 Flas hes
• Out-of-box reset
• None
1 Flash
• Comm unications Failure
• Com munic ations Failure
Содержание CONDENSING UNITAIR CONDITIONING
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