Carrier instruction manual Catalog No 58MEC---01SM

58MEC

-
Auto					Replace
LOCKOUT	to:		open.
	due				.
CIRCUITRY	lockout	failure	stuck	error.	lockout	.
					clear
	1		rela	check
			y			repeats
		.
	hour	circuit			to	code
CONTROL	after		valve		power
						control
	reset	-	-	-	Reset
		Flame	Gas	Software		if
45
OPEN		for:	open.	pressure			used)
							.
SWITCH	PRESSURE	Chec	stuck	obstructed		switches.	LGPS
			switch				(if
		k
PRESSURE	HEAT	CLOSED	pressure			pressure	pressure
							gas
		-		or
	-		Low	Disconnected	tube.	Miswired	Low
HEAT	HIGH	IS	heat				inlet
		SWITCH
	WHILE		-	-		-	-
LOW
-			-
43

			igniter.
			and
			harness	component.
			in
control.			the
			continuity	defective
furnace
Replace			for	Replace
			Check
NO	sequence.		YES
and			115V	period?
control	test	and	Was
from		1	control.
	component	pin
harness		between	on	15
			the	second
igniter	another	115V	-	for
		for	L2
				the
Unplug	initiate	Check	NEUTRAL	present

control.			on.							test
										to
replace			turned			rough				repeat
						or					operation.
If			valves			carryover				and
OK,			are				pressure.
										come
										on	intermittent
connections.			that	valve.	for:	te	gas	firing		blower
						flame	inlet				for
			gas					rate.		to
			all			Inadequa
Check			Check	Replace	Check		ignition.Low	Proper		Allow	check
						-	-	-
NO	voltmeter					NO		NO		YES
and					flow?
set		gas
		Does			to
lead	Connect				gas					on?
		connections.		YES	allow		YES		YES
thermostat	for				and			ignite?		stay	NO
	heat.
R	call	valve	24V?		open			burners		burners
the					valve
Reconnect	to	gas	receive					main		main
					gas
	thermostat	across	valve		Does			Do		Do
								the		the

	and	-	replace	heat	pressure.	flame
		in
is		high		then
current	nominal)	check	on	high	manifold	and
If
				in
			stay	-
retry.		repeat				carryover
	6.0		still
			not	operate	check
and	(4.0	on,
	-	stay			heat,	burner
connections	value		will	burners
		will	burners		to	checklocation.
		not			-
	typical			If	low
Check	near	burners	heat.		switch		sensor
				control.
			If			OK,
						If
NO
sensor	the					and		4.0
								to
	Is					wool
flame	period.							is
						steel		current
check	ignition	0.5?		YES		fine
								Nominal
and	for	below				with
heat						sensor
	trial	microamps						current.	microamps.
call	during					flame
for
Repeat	current	DC				Clean		recheck6.0
		NO

electrode.		control.
		furnace
Replace		Replace
NO		NO
		on?
value?	YES	stay	YES
		and
typical		ignite
		burners
near
current		main	Fixed.
Is		Will
		YES

DID

open

off

off

the

off.

in

of

shuts

opens

blower

-

.

pressure

until

ignition

ignition

lockout

end

–

used)

If

If

will

delay.

SWITCH

If

blower

supply.

Indicates

open.

is

minutes,

open

shuts

manual

system.

capacitor.

supply.

flame

during

before

connected

grounded.

is

sensor

igniter.

connection

the

LGPS

#33

connections.

blower

-

problem

the

REOPENED

inducer

If

period,

.

obstructed

or

whichever

–

for

the

before

lost

off

the

the

Does

the

iod?

y.

selected

(115V)

air

switch.

is

minutes

3

#13.

code

il

requires

duct

air

open)

FAILURE

the

repeat

is

blower

first

step.

be

or

in

to

retr

(if

–

switch

than

or

not

the

by

up

PRESSURE

combustion

motor.

blower

combustion

trial

signal

period,

items

MUST

metal.

be

flame

operated

check

thermostat

initiate

sequence.

per

nutes,

ore

delay

the

sizing.

voltage

pressure

pressure

FAULT

rollout

4

remakes

longer

lockout

status

unt

switch

restricted

wheel.

or

motor

switch

.

PROVING

during

will

times

selected

next

off.

valve.

must

whether

igniter,

mode

orange/white

-

OR

bef

-

for:

or

inducer

wind.

vent.

for

flash

switch

blower

sizing

control

flame

delay

following

turned

wire

sheet

be

and

warm

mi

on

for

Disconnectedtubing.

to

for:

.

wind.

more

the

off

R

5

blower

on

Check

gas

Inadequate

CIRCUIT

run

open

min.

lout

Check

or

vent

If

-

the

to

-

Green/Yellow

can

test

the

control

test

HEAT

than

15

Proper

Low

Low

Defective

Defective

Excessive

Restricted

flame

3

to

Dirty

Loose

Inadequate

(flame

Restricted

Proper

Excessive

not

3

occurs.

on

Manual

to

Flame

determine

gas

remove

15

will

If

rol

Defective

Defective

the

blower

for

the

Gas

system

ow

CLOSE

minutes

come

vent

inducer

inlet

switch

changes

than

continues

filter

blower

rollout

vent

IGNITION

sensed

sequence

proceeding

valve

shut

furnace

sensor

valve,

nent

component

second

-

longer

during

delay.

LIMIT

or

Blower

longer.

Flame

reset.

period,

on

Check

the

gl

LOW

NOT

for

will

-

-

-

-

-

-

-

-

-

limit

open

code

less

-

-

-

-

-

-

-

-

is

#14

the

come

-

-

-

-

To

the

the

compo

First

from

igniter

the

32

33

34

LED

be

24V

a

to

–

off

call

-

delay

switch

33.

reset.

to

.

See

-

is

OR

codes

-

a

(R

SIGNAL

de

)

Control

OPEN

RED

also

or

cycle

UP

when

on

Lockout

code

failed

attempts

hours.

Turn

retry.

on

wire.

is

fault

IS

leads

can

5V

blower

4

through

operation.

during

-

manual

off

voltage

mostat

SWITCH

Stored

On

codes

(11

cooling

POWER

selected

or

blower

–

rollout

minutes.

See

System

in

3

–

to

relay

valve

PROVING

valve

until

valve.

NOT

closed.

FUSE

thermostat

OR

defective.

–

hours.

system

Normal

up

closed)

LOCKOUT

flame

hours.

requires

e

after

LOCKOUT

minutes

gas

run

DID

tube.

y

ther

for:

CODE

wer

or

the

–

flam

valve

gas

gas

VOLTAGE

secondar

including

circuit.

PRESSURE

CLOSE

miswired.

us

po

heat,

AFTER

during

3

3

OUT

prove

reset

-

while

will

leaky

SWITCH

pressure

stuck

be

32.

72

stat

ver

Run

–

the

W/W1

limit

than

after

switch

gas

short

FLAME

for:

for:

may

after

for

is

-

34.

5

-

code

-

or

in

powered

(R

the

.

or

proved

Check

switch

Disconnect

Check

high

unit

reset

and

relay

PREVIOUS

24V)

CIRCUIT

or

LOCK

auto

to

Inducer

short

NOT

erased

stored

whene

interrupted.

heat,

system.

ON

runs

-

opens)

longer

rollout

code

HEATING

wait

open

Check

circuit

wiring

is

status

OR

if

gas

and

for:

k

is

for:

-

DID

valve

BLOWER

heat

if

-

IGNITION

will

closed

control

ABNORMAL

energized.cleared.

PRESSURECheck

SECONDARY

isolate

RELAYREOPENED

boards

erased

-

(115V

Blower

W/W1period.

LIMIT

occurs

is

auto

Flame

ignite

Controlstatus

GAS

power

Check

-

-

Flame

-

-

-

OPEN

-

(24V)

leads.

HIGH

-

-

-

NO

are

is

lowcheck

delay,

for

will

to

open

Stuc

Miswire

Stuck

Obstructed

Pressure

Short

Control

Gas

See

11

12

13

14

21

22

23

24

31

A05095

Copyright 2009 Carrier Corp. S

7310 W. Morris St. S

Indianapolis, IN

46231

Printed in U.S.A.

Edition Date: 09/09

Catalog No: 58MEC---01SM

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Replaces: NEW

18