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Component test, Status code example – Bryant Deluxe 4-Way Multipoise Variable-Capacity Direct-Vent Condensing Gas Furnace A93040 User Manual

Page 13

background image

Fig.

15—Service

Label

A93305

To

ini

tia

te t

he

compo

nen

t te

st

seq

u

e

n

ce

, s

hut

"OFF"

the

room th

ermost

at o

r di

sc

onn

ec

t th

e "R"

the

rmos

tat

le

ad.

Put

se

tup

switch

"SW-6"

in

the

"ON" po

si

tion

to

sta

rt th

e compon

en

t te

st seq

uen

ce

. Once i

n

iti

a

te

d th

e

ma

in

boa

rd wi

ll t

u

rn "

O

N"

the

in

duc

er m

o

to

r-low s

p

e

ed,

ind

u

c

e

r m

o

to

r-hig

h s

pee

d,

hot

su

rfac

e i

gni

tor,

blo

w

e

r

mo

tor-l

ow s

pee

d, a

n

d

blo

w

er m

o

to

r-hig

h s

pee

d f

o

r 15

-20

se

co

nds

ea

ch

. Whe

n

c

o

m

p

o

nen

t te

st

is

com

p

le

te

d

on

e o

r mo

re o

f th

e fo

llo

wing

co

des

wil

l fl

ash

.

COD

E

D

ESCRIPTION

11

In

dic

a

te

s i

ndu

ce

r an

d b

lower

mot

o

r te

ste

d

OK.

Visu

al

che

c

k

of

ho

t su

rfac

e i

g

n

itor

requ

ired

.

22

SETUP ERROR

- Same a

s

cod

e

22

ab

ov

e.

41

BLOWER OU

TS

IDE VALID SPEED RAN

GE -

Ind

ica

tes bl

ower moto

r fa

ile

d

t

e

s

t. Ch

e

c

k

bl

ow

er,

wi

ri

ng

,

an

d c

o

n

trol

ce

nter.

42

INDUC

ER OUTSIDE VALI

D

SPEED RA

NGE -

In

dicat

e

s

ind

u

cer moto

r

fai

led

test.

C

h

eck i

ndu

ce

r,

wirin

g

a

nd co

ntrol

ce

nte

r.

To

repe

at

compo

nen

t te

st

turn

se

tup

swit

ch

"SW-6"

"OFF"

and

th

en b

a

c

k

"

O

N".

Afte

r co

mp

one

nt t

e

s

t is

c

o

mp

let

ed

put

se

tup

swit

ch

"SW-6"

in

the

"OFF"

pos

iti

on

and

rec

o

n

nec

t th

e "

R

" the

rmo

sta

t le

ad

.

COMPONENT TEST

STATUS CODE EXAMPLE

34

IGNITION PRO

V

IN

G FA

ULT

- Cont

rol wi

ll t

ry

th

ree

more

ti

mes

be

fore

a

loc

k

o

u

t #

14

oc

curs

.

Chec

k for:

- Gas v

a

lve turned "OFF".

- Oxi

de

bui

ldu

p

o

n

fl

am

e s

ens

or (c

le

an

wi

th f

ine

sa

nd

pap

er.)

- Main

sh

uto

ff valve

turne

d

"

O

F

F".

- Green wire

MU

ST

b

e

con

nected

to

furn

ace shee

t meta

l.

- Pr

o

per

f

lam

e s

e

n

s

e

mic

roa

mp

s (

.5

mi

cr

o

a

mp

s D

.C

.

min

im

u

m)

- In

ade

qu

ate

fla

m

e

ca

rry

o

v

e

r o

r rou

gh

ign

itio

n

.

- Lo

w i

n

le

t

g

a

s

pr

es

su

re

41

BLOWER OU

TS

IDE VALID SPEED RAN

GE

-

Ind

ica

tes

th

e bl

ower

is

not

ope

rati

ng

at t

he c

a

lc

u

late

d

RPM

.

If

this fa

ult

occu

rs i

n

conj

unctio

n

wit

h

fa

ult

#4

4 check

w

iring

to

mo

tor o

the

rw

is

e

refe

r to

the

tro

ubl

e-sh

oo

ting

gu

ide

.

42

INDUC

ER OUTSIDE VALI

D

SPEED RA

NGE

- I

n

d

ica

te

s

t

h

e i

n

du

ce

r is

no

t op

er

at

in

g

at

t

h

e

ca

lc

u

la

ted

RP

M

,

or

has no

t starte

d wit

h

in

10

se

co

nds af

ter a

ca

ll

for h

eat

. Che

c

k wirin

g

to

mo

tor o

the

rwise

refe

r to

th

e tro

ubl

e-s

hoo

tin

g

g

u

id

e.

43

PRESSURE SWITCH CALIBRATION

FAU

L

T

- In

dic

a

te

s t

he

low a

nd

hig

h

p

ress

u

re

swit

ch

"ma

k

e

" p

o

in

ts

du

ring

hi

gh

hea

t p

u

rge

are

not

with

in t

he

cal

ibra

tio

n ra

nge

.

Che

c

k

for:

- Pl

ugg

ed

con

d

e

n

sa

te

drai

n.

- W

a

te

r in

ve

nt

p

ip

ing

, po

ss

ib

ly

s

a

g

g

in

g p

ipe

.

- Im

pro

per p

res

su

re s

w

it

ch

wirin

g

o

r pre

s

s

u

re s

w

itc

h

t

ubi

ng

con

n

e

c

ti

ons

.

- Fa

ile

d o

r "Out

of Cal

ibra

tio

n"

pres

su

re s

w

it

ch

es

.

44

BLOWER CA

LIBR

ATI

O

N FAULT

-

Ind

ica

tes

th

e c

a

lc

ul

ate

d

bl

ower

spe

e

d

is

bel

ow 2

50

or ab

ov

e 1

300

RPM.

Unit

wi

ll

defa

u

lt

to

low o

r hi

gh

hea

t m

ode

if

pos

si

ble

. If

this

fa

ult

oc

cu

rs i

n

c

onj

unc

tio

n

wi

th

fa

ult

#41

ch

ec

k wi

ring

to

mot

o

r ot

herwi

se

refer

to t

he

troub

le

-s

ho

oti

ng

gui

de.

If t

h

is

fa

ult

occ

u

rs

by

it

sel

f c

hec

k

for u

nde

rsi

z

ed

du

ctwo

rk, o

r ex

ce

ss

iv

e s

tati

c

c

a

u

s

e

d

by

a

dirt

y fi

lte

r, or

clo

s

e

d

re

gis

ters

.

320624-101 REV. E

SPEED RANGE

INDUCER OUTSIDE VALID

=

42 FAULT

HUM

G

R

Y/Y2

W/W1

C

W2

MALFUNCTION

MICROPROCESSOR

RED LED2

EMER HT.

RED LED1

(2)

FLASHES

NO. OF

COUNT THE

(4)

FLASHES

NO. OF

COUNT THE

LOW HT.

LED4

GREEN

HIGH HT.

LED3

YELLOW

4

3

2

1

FUSE

3

2

1

OFF

3

2

1

OFF

1 2 3 4 5 6 7 8

OFF

SETUP SW,(SW1-8)

—13—