Amana AHVE Series User Manual

19
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
 Depress Learn Button
 Verify wiring connection
 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
breakers; replace/reset

Replace blown fuse

Check for shorts in low
voltage wiring in air
handler/system

Reset network by
depressing learn button

Check data 1/data2
voltages

Turn power OFF prior to
repair
1 Ste a d y
Flash

No network
found

Broken/ disconnected
data wire(s)
 Air handler is
installed as a non-
communicating/
traditional system

Check communications
wiring (data 1/data 2
wi res )
 Check wire connections at
terminal block
 Verify air handler
installation type (non-
communicating/
traditional or
communicating)
 Check data 1/data 2
voltages

Turn power OFF prior to
repair

Verify wires at terminal
blocks are securely twisted
together pri or to i ns e rti ng
into terminal block
 Verify data 1 and data
voltages as described
a bo ve
Rapid
Flashing

Norma l ne twork
traffic

Control is "talking"
on network as
expected

None  None
On Solid

Data 1/Data 2
miss-wire

Data 1/data 2 wires
revers e d at a i r
handler, thermostat,
or ComfortNet
TM
compatible outdoor
AC/HP
 Short between data
1/data 2 wires
 Short between data 1
or data 2 wires and R
(24VAC) or C (24VAC
common)

Check communications
wiring (data 1/data 2
wi res )

Check wire connections at
terminal block

Check data 1/data 2
voltages

Turn power OFF prior to
repair

Verify wires at terminal
blocks are securely twisted
together pri or to i ns e rti ng
into terminal block

Verify data 1 and data
voltages as described
a bo ve
Red
Communications
LED
Green
Receive
LED

Amana AHVE Series Specifications

General

Brand	Amana
Model	AHVE Series
Category	Air Handlers
Language	English