Amana AVPEC Series User Manual

18
COMMUNICATIONS TROUBLESHOOTING CHART
LED
LED
Status
Indication Possible Causes Corrective Action(s) Notes & Cautions
Off


None


None


None


None
1 Flash

Communications
Failure

Communications
Failure

Depres s Lea rn Button

Ve ri fy wi ri ng connecti on


Depress once quickly for
a power-up reset


Depress and hold for 5
seconds for an out-of-box
reset
2
Flashes

Out-of-box reset

Control power up

Learn button
depressed


None


None
Off

No power

Communications
error

No power to air
handler

Open fuse

Communications
error

Check fuses and circuit
bre a ke rs ; repl a ce /re s et

Replace blown fuse

Check for shorts in low
voltage wiring in air
handler/system

Res et network by
depressing learn button

Che ck data 1/da ta 2
voltages

Turn power OFF pri or to
repair
1 Ste a dy
Flash

No network
found

Broken/ disconnected
data wire(s )

Ai r ha ndl e r i s
installed as a non-
communicating/
traditional system

Check communications
wiring (data 1/data 2
wires)

Check wire connections at
terminal block

Ve ri fy ai r ha ndl e r
installation type (non-
communicating/
traditional or
communicating)

Check da ta 1/da ta 2
voltages

Turn power OFF pri or to
repair

Ve ri fy wi res a t termi nal
blocks are securely twisted
together prior to ins erti ng
into terminal block

Verify data 1 and data
voltages as described
above
Rapid
Flashing

Normal network
traffic

Control is "talking"
on network as
expected

None

None
On Solid

Data 1/Data 2
miss-wire

Data 1/da ta 2 wires
revers e d a t a i r
handler, thermostat,
or ComfortNet
TM
compatible outdoor
AC/HP

Short between data
1/data 2 wires

Short between da ta 1
or data 2 wires and R
(24VAC) or C (24VAC
common)

Check communications
wiring (data 1/data 2
wires)

Check wire connections at
terminal block

Check da ta 1/da ta 2
voltages

Turn power OFF pri or to
repair

Ve ri fy wi res a t termi nal
blocks are securely twisted
together prior to ins erti ng
into terminal block

Verify data 1 and data
voltages as described
above
Red
Communications
LED
Green
Receive
LED

Amana AVPEC Series Specifications

General

Brand	Amana
Model	AVPEC Series
Category	Air Handlers
Language	English