Sears 867.76391,867.76398,867.77387,867.77388,867.77389,867.763792,867.763822,867.763832,867.763842,867.763852,867.773860 Owner's Manual

Sears owners manual

N[OOiLNOS,

867.76391

867,76398

867.77387
867,77388

867.77389
867_63792

867.763822

867.763832

867.76384Z

867.763852

867,773860

HOW TOORDER
REPAIR PARTS

SEARS SERVICE

IS AT YOUR SERVIa

WHEREVER YOU LIVE

OR MOVE IN

TNE U, S, d,

TheModelNumberwillbefoundonthe RatingPlatelocatedonthe

FrontDivisionPanel.AJwaysmentionthe ModelNtonber,vhen re-

questingserviceorrepa)rpartsfor yourSearsFurnace.

All parts listed hereinmay be orderedthrough_ARS, I_OEBU(_

ANDCO.Whenoderingpartsbymail,selliqg priceswillbefamished

on requestor p_rtswillbe shippedat prevailingpricesendyouwill
be billedaccordin_y.

WH_ ORDERINGREPAIRPARTS.ALWAYSGiVETHE FGtLOWING

INFORMATIONASSHOWNINTHISLIST.

1. _ PARTNUMBER
7_The PARTDESCRIPTION

3. The MODELNUMB_

4. The NAMEof ITEM. GasFurraec

YourSears merch_ldisetakeson addedvalue whenyou lsc_ _r

_q

that Searshas over2,000 ServiceUnitsthroughoutthe count_.

Eachhasfullyequippedtrucksandis staffed bySe_ai(ed, pro-
fessionaltechniciansusingSearsapprovedpartsandIne_KIs.

LZ9"d LZ/LZd EIe-.L _EEBBYZ_iL9+ .Ld_ H_y_I$_J ,,i_l-iOJ'l lUCrE:80 66-SL-uer

SEARS' GAS-KIR_.D SECTIONAL Fu*RNAC_

KEY

riO.

"1

Z

3
3
3
€
5

6

7

8

8

9
10
11

11

lZ

667.763792
867,763822

86856

69455
e959Z

B6806

86870

90779

29441

503211

132887.

8469Z

S03Z09

mmm

61319

45756E

64623

PART NUMBERS FOR HODELS

867_76383_

86858

6gdS5

69692

86808

86871

90779
zga41
503211

132887

84692

503209

mm_

813Z0
457568 "

646Z3

I

867. 7638421867.76385_

86858 86868

69455 69455

89592 89692
86810 86810

86873 ---

--- 86870

90779 90779
29441 Z9441

S03211 503211

132887 13Z887
64692 1_69Z
503209 S03ZO9

81321 81321
457566 _7556
646Z3 646Z3

;67.773_0

69455

8959g

86810

8_74

86875

9O779

29441

503212
137887
96037

_03210

81321

_57556

64623

DESCRIPTIOti

#Valve, Autumtt¢ (Nat, Gas)

224M Btu., 112 x 3/4., Z4V.

#Valve, Automatic (L-P- Gas)

2_4 8tu., I/Z x 3/4., Z4V.

Tubing, Pilot

Burne_

Burner

Haatfoid

#Spud, Burner Orifice (arias, Eat. _IIS)

#34 Ortll (_ Req.)

#Spud, Burner Orifice (Brass, Nat GaS)

@36 Oft11 (d Req.)

# Spud, Burner Orifice (Brats, fiat. _S)

#38 Or111 (5 Req.)

#Spud. Burner Orifice (Brass, ,Nat.Eas)

#34 Drill (S Req.)

i#Sl_l, Burner OrifiCe (Sliver, Prnpsne Gas)

#50Drlll (5 e_.)

#Spud, Burner Orifice (Black, Butane Gas)

#SI Drill (S geq.)

Thermocouple

Ferrule and Nut (2 ReQ.)

#Orifice. P_lot Burner (Brass, Nat, _s)(BCR18}
#Orifice, Pilot Burner (Black L.P. _S)(88R10)
"SCreW, €1O-3g x 3116" Rd. Hd. I_lc_tne (Z ke¢.)

Bracket, Pilot

#Burner, Pilot (Nat. Gas)(I_l. #8)

#Burner, Pilot (L.P. Gas)(In¢l, #8).

Crnssltghter

*Screw, _7 x 318" "g" He_. Fkl. (_ Req_)

Rod, Pilot Lighter

Standard hardware items. Purchase locally.
Be sure parts being ordered are for t_pe of gas being used.

J ,Part not illustrated.

ZZ9-d LZ/OZd [LB-I _EEBSkZSlg+ ld_ H_V]S_J _31"BOJd =ekE:60 88-SL-Uer

repair parts

SF.JkRS GAS-FIRED SECTIONAL FU_ACE 867.76391, 867.76398,

867.77387, 867.77388 867.77389, 867.763832. 867.763842. 867.763852 AND 867.7_386_

KEY 867.77369 B67.763852
NO. 867.763832 867.763842 867.773860

:l 68989 68989 68989

z 446188 446188 446188

3 72409 72409 72409
4 68986 68986 68986
5 86022 86022 91584

6 68987 68987 68987

7 _,7_5 ......

7 --- 84747 ---

7 ...... 92407

8 120373 120373 120373

9 103320 103320 . 103320

10 9415819 9415819 9418819
II ?2299 72219 72299

1Z 80779 80779 80779
13 213Zl 21321 21321
14 72412 72412 ---

14 ...... 67964

15 88038 88638 88638
16 74465 74465 74465
17 81163 81163 87963
18 7Z98Z 72982 87958
19 7Z400 72400 87966
20 67584 67584 67960

21 273556 273566. 273656

* Standard hardware items, r_ocure 1ocally,

SEAI%S GAS-FIRED

DESCRIPTION

Screw, 1/4 x 1-3/4" Type "8" lies. Hd. _AS (3 ileq,)

*Wesher (3 Req.)

Seater

Grit, Center {3 Req.)

Support, P_tor
Grommet, Ring (3 Red.)
]lotor, 1/4 HP 4-Speed PSC Direct Drive

Motor, 1/3 HP 4-Speed PSC Direct Drive
Motor, 1/Z HP 4-Speed PSC 0trect Orlve

*Nut, 5/16-18 Square
*Washer, 5/16" Lock
"Screw, 5/16-18 x 1-1/2" Kex. Hd. Nachtne

Wire. Jumper
Block, Temtnel
Nut, WiPe
Capacitor, 370V., AC 4.0 Mfd.

Cepacitor, 340V., AC 15.0 Hfd.
W_re, Blower

Cover. Junction Box

Box, Ounctlon
Housing, Blower
_heel, Blower
Panel, Cut-Off

"Screw #10 x B/8" SHWH] "A" $.H.S.

REFER TO PAGE 21 FOR PARTS ILLUSTPATION.

SECTIONAL FURNACE

P UNBER$ 0 ODELS _'_'_

KEY 867.76391

NO. !B67.76398 867.77387 867.77388 667.77389

l
1
1

Z

3

3

3

5

5

5
6

5

5

5

5

7
8
8

9

10
11
ll
12
13

!4

15

I

91469

91872

8969Z

8680a

86869

504891

92242
132887

80745

91463

22254

505130
6_.623

.--m

92548

91872

89592

93048
69455

89592

93048

69465

89592

86804

86874

86876

S0_891

DESCRIPTION _

#Valve, Automatic (Nat. G_S) 240H Btu., lJ2 x 3/4., Z_/V

#Valve, Autometio (L,P. Gas) ZdOM BtU., I/2 x 314., Z4V

#Valve, Automatic (L.P. Gas) 224H Btu., 11'2 x 3j4., 2_,V

Tub1ng, Pilot
BUrner. (Z Req. )

Burner 13 Req.)

Burlier Req.)

86806

86874

86B75

90779

86608

86874

%6875
90779

_aliifold

#Seud_ Bgrner
#Soud, Burner

#Spud, Burner
#Spud, Burner
#Spud, Burner
#Spud, Burner

8Spud, Burner

Thermocouple

92243

132887

80745

92552

_2254
505130

64623

Orifice (Brass, Nat. gasl #33 Ortl (ZRea,}
Orifice {Silver Propane 6as) #60 !_rill (2 _eo.)

Orifice (Silver Propane Gas) #50 llrill (3 Req.1

Orifice (Silver Propane Gas) #SO llrill(4 Re_.)

Ortflc, _Bl,¢k, ButaneGas: #510"111 {! Req. I

Orifice (Black, Butane Gas #Sl 0"III ReD.

Orifice (Black, Butane 6as #51 0"111 Re€.)

294_1

503212

132857

84692

503210
81319

457558

6_623

29441

60321Z

132887

84692

503210

81320

457558

64623

Ferrule and Nut (2 RED.)

#Orifice, Pilot Burner (Brass, Nat, 6as)l.O261
#Orifice, PilOt Burner (Black, L.P. 6es)(BBRIO)
*Screw, #10-32 x 3/16" Rd. lid.Wachine (2 Req.)

Bracket. Ptlot

#Bur_er, Pilot _Net. rosS(Incl. F,ey #8)

#Burner, Pilot (L.P. Gas)(Incl. Key #8)

Crosslighter

*Screw, #7 x 3/8" "B" He1. Hd. (2 Req.)

Sleeve, CompressiOn
Nut, CompresSion

Rod, Pilot Lighter

tanderd hardWare items. Purchase locally.

Be sure parts being ordered ere for type of gas being used.

IZ9-_ lZ/8l_ EI8-1 VEEB81Z_19+

FORPARTS ILLUSTRATIO_I
SEE PAGE 23

ld_ H_JY]S_I dSl-=O_d merE:B0 B6-St-ue r

SEA_s GAS FIRED SECTIONAL FURNACE

15

12 10

\

6

7

19 _

2 o

KEY

NO.

I

1

2

3

4

5
6

7
7
?
8

9
10
11
12
13

14

15

16
17
_8

19
ZO
21

i

PART Nb_BERS FORM _ELS

667.76398

867.77388

867.7638ZZ 867,763792 DESCRIPTION

_7.76391

7_..67.77387

68969
4d6188

72409
68986

86022

68987

68989
4€6188
7Z409
68986
86022

68987

84745

84746

120373

103320

9415819

72299

80779
21321

72412

81260

7_a68

61163

72960

71_78

67586

273566

Standard hardware items.

120373"
103320
9418819

72299
60779

213Z1

72412
81260
74466
81163
72980

72978

67586

273556

56969
44_188

72403
68986

66022

65987

6a747

120373
I03320

9a15819

7Z299
80779
21321
72_12
61260
74465

81163

729_0
7297a

Screw, 1/4 x 1-3/4" Type "_" Hex. rid. SHS (3 _eq.)

*_asher (3 Req.)

Spacer
GrOmmet, Center (3 Peq.)
SuPPort, Motor
_r_t, Rin_ (3 _eq.)

Motor, 1/4 HP 4-Speed PSC Direct Orlve
Hotor, 113 HP 4-Speed PSC Direct Drive

Hot.or. 1/4 HP 4-Speed PSC Direct Drive

*Nut, 5/16-_8 Squar_-

"Washer, 5/16" Lock

"Screw, 6716-18 x 1-112" Hex. Hd. l_chlme

W(re, Jumper
Block, Terminal
Nut, _ire
Capacitor, 370V, AC 4.0 Nfd.
Wire, Blower
Cover, Junction Box

Box, Juhction
Housio9, 61ower

67586

Z73586

_heel, B1o_er

Fa_el, Cut-Off - "

*Screw, #lO x 5/8" SHWHType "A" S.11.S. (2 Rep_.)

Frocure locally.

LZ9-.I lZ/BLd EI8-1 _EEBB_Z_19+ ld_ H_VJ$_ dll-m°J:l =eVE:SO 66-S{-uei"

repair "harts

SEARS GAS-FIRED SECTIONAL FURNACE MODEL NOB, 867.7634)1,

867,76398,867.77387,867.77388,867.77389,867.763792,867.763822,867.7638_;2,

867.763842.867.763852 AND 867.773860

NO. ,b7.?6383Z

1
g

3

4

5
6

7

8

9

10
11
11
12
13
14

15

16
]7
18
19

ZO
Zl
gZ

23
24

25

Z6

:7

28
29

30
31

3Z

33
34
35
36

36

37
3e
39
40

41

42
43

44

45

I

Th_ is a I_,pair Parts i_rt, NOT a Peeking List

PAR_ NU_EFS VOR_p£kS,

867.77389 867.763852

86574
8O937
8_752

80750

25609

;'71163

26870

28871
86946
ZI3Z1

81S81

81167

132768

86882

86646

86850

145450

85790

87509

80672

82439

87ose

87003

870¢4

_738

446817

69334

See Burner
84900

1O3319

848_6

691£3
6:_8

S_e 8lower

81256

69298

69522

75681

87870

86453

69520
60563
60560
81547

9235

96390

867.763842

86574

80938
80752
80750

25609

271163
26870

26871

86946

z1321
81581

.dm

81167

132768

868_2

86845

86850

148480

85790

87946

88319

87949
87056

87003

87004

82450

446817

69336

end Man(fold

8490O

103319

867.773860

85878
80938
8075g
80790
25609
271163

_5870

26871

86951

21321

81982

81167

13z768

86852

86846

66850

145450

85790
87946

80674

818,38
87056

87003

8700_

82450

• 46817

69336

Parts List

84900

103319

DESCRIPTION

Door, Blower
Door, Front
N_eplete. "SEARS"
l_d_llioo, "SEARS"

*Nut, Speed (4 P.eq.)
",ut, 8-32 Hex. (4 Req.]

Str(ke, Door (4 Req.)
Catch, Door (€ I_m.)
Pamel, Left Side
NUt, Wtre

Switch, _r (6 Mp)

Svltch, _r (15 $_IP)

Side, )l_ (l Req.)

"Screw, 18-32 x 3/4 Rd. lid, Machine S._.S. (2 Req.

Tra.sfoMner,

Support, Transformer
Cover, Junction Box

*Screw, #8 x 1/4" ILIL TyPe "8" S._.S. (4 Req.)
*Screw. #10 x 112" SHMI Type "AS" S.M.S. (_ _eq.):

Panel. Front Division
Panel, Top
Olverter
Control, Fan and Limit

Wire, Control (Black and Black)
Wire, Control (Brown and Yellow)

Scoop. Oiverter S.N'.S."

"Screw, _4 x 3/16" _do IM. Tyne "8" . . (4 Re_.)

Shield, _,_-ner

Assembly. Burner and eenlfold

"Screw, _l_ x 5/8" Type "AR" S.r',S.(16_,)
*_asher, I/4 Lock (4 Re_.)

848=5 84846

69153 _9153

64488 64488

Parts List

81256 81256

69298 69298

6917a 69174
6992Z 595Z2
75681 75681

87952 87982
86453 81288

69520 695_0
60563 60563
60560 60560
81S47 81272

9235 9235
96300 96300

_tre, filter Lock (2 Req.)

Base

Filter, Air 16" x 28" x I" (2 Reo.)
Assembly. 8loWer
Deck, _Io_m_r
Baffles, Flue (4 Req.)

Baffles, Flue (6 Req.)

Plate, Rostrictor
Liner. Left Side
Bracket, Liner (4 Req.)
Exchanger, _eat
Panel, Rear
Liner, Right Side
Damper. Sound

*washer

Panel. Right Side
Thermostat

Owners Manual (F642-14971)

* Standard Hardware Items. Procure Locally. FOR PARTS ILLUSTRATIOIW

I Part Not 5hawn. SEE PAGE 18

lZ8-_ IZ/lld £LE-Z VEEeB_ZSLg+ _ H_YSS_I d3l-UlOJd UeEE:EO 611-EL-uzt

SEARS GAS-FIRED SECTIONAL FURNACE

This is = Repair Parts List, NOT a Pecking List

KEY
NO.

I
Z

3
4

5

6

7

8
9

lO

II
II
12
73
14
IS

15
17
18
19

zo

21
22

22

23

24
25

26

27
28
79
30
31
32

_r

34

35
36
36
37
38

39

40
41

:2
43

44

°i

857.7_387

867.78391

86573
80936

80752

80750

25609
271163

26670
26871
86944
21321
81581

..w

81167

132768

86852

86846
86850

145450

85790
87054

80668
80653

PART N_IBERS

867.76598
86873

80936

80752
80750
25509

271163

26870

26871

86944

21321

81581

81167

132768
86852

86846

86850

145450
85790
86938
80668
80653

87055

87056 ---

87003 87003
87004 87004

80734 80734

4_6817 446817
69330 69330 '

• See Burner and Manifold
84900 84900

FOR MODELS ,

867.763792

86573
80936

80752

80750
25608

271153

26870

26871
86944

_1321
8158_

81167

132768

86852

86846

66850
1a5650

85790
8593O

80670

82379

87056
87001
86999
80736
446817
69332

Parts Ltst
84900

857.77988

867.76382Z

86573

80936

80752
80750

a5609

271163

26870
26871

86944

21321

81581
81167

132768

86852

86846

86850
145450
85790

86934

80670
8O655

87056
87002
87005

80736

446817

69332

84900

DESCRIPTION

Door, Blower
Door, Front

N_plate, "SEARS"

Medallion, "8F_RS"

*Rut, Speed (4 Red.)
_NUt, 8-32 Hex. (4 Red,)

Strike, Ooor (4 Req.)

Catch, Door (4 Req.)
Panel, Left Side

Nut, W(re
S_ttch, Summer (6 Amp)

Switch, Sum_r (15 Amp)
Side, Plenum (2 Req.)

*Screw, #8-32 x 3/4"Rd. Md. Fhch'Fne (Z Req.)

Transformer
Support, Transformer

Cover, Junction Box

*ScreW, #8 x 1/4" H, H. _ype "B" S,N.S, (4 Req,)
*Screw, #10 x 1/2" SHWH 'A8" S.R.S. (41 Req.)

Panel, Front Dlvlston

Panel, Top
Dfverter
Control, Fan and Limit

Control, Fen and Limft
Wire. Control (Black and Black)
Wire. Control (Brown and Yellow:_

Scoop, Oiverter

"Screw, #4 x 3/16" Rd, Hd. "B" SNS (4 Led,)

Shield, Burner

Assmbly, Burner end Manlfold

"Screw, 114 x 5/8" "AB" S.tl.S. (lIZ Req.)

103319

8_8_6

See Blower

81011

69296

69135

75681

76110

81257

69133

60563

60560
81769

9_35

96300

103319

84_6

6_151

7_r7

Parts List

81011

69?98

74376
74408

74398

81257
74376
60563
60560

81269
9236
96300

103319

84846

€9151

7,_ZI'7

81011

J

69298
7¢376

7=408

74399

81257

74376

60563

60580
81269
9235

96300

103319

84846

81011

69Z_8

w.m

69139

75681

76112

81257

69137
60563
60560

81769

9239

96300

*Wisher, 1/4 Lock (4 Req,)

Wire, Filter Lock

Pf11_er.Xfr 116J' K _I' _ if,'

Assembly, 81ower

Deck, Blower

Baffles. Flue (2 Req.)
Baffles. Flue (3 Req.)

Plate, Restr_ctor
Liner, Left Side

Brlcket, Liner (2 Req.)
Exche_er, Heat
Panel, Rear
Liner, Right Side "
Damer, Sound

*Washer

Panel, Right Side
Thermostat

Manuel. Owners (F642-149719

Standard hardware itemS. Pnecure Locally.

Part not shown.

FOR PIRTS ILLUSTRATION

SEE PAGE 18

ZZB-d IZ/gid £LB-I kEEBBtZSL9+ _2 H_V]S_ d3l-Um_d eeE£:80 66-SL-uer

t11

_n

T

SEARS GAS-FLiED SECTIONAl. FuRNACeS MODEL NOS _6"L'/6391, 867.76,_98,

8_7.77387, 867.77388, 867.77_t9. 867.763792, ,_7_76_822. R67.763832, 8_7.763842,. 867.7_852 AND...867,'/'/3860

"f. ,_

I!

13

/

!

Low a setting u po6s_ble and sttll have it turn off
when furnace is cool.

(2) Fuse Blown or Wire Broken. Correct the

trouble.

(3.): Blower motor needs attention of a service

tee.k_cian.

NOISY BLOWER

(i) Housing Rattles.Tighten screws.

(2) Needs Lubrication.Lubricateper instruetian&

(3) Air FiltersDirty. Replaee them.

NOISY FLAMES

11) Excessive Gas Input. Probably due _o too high

a gas pressure. Adjust gas regulator,

(2) Damagea orifice (i_ it whL_les). Replace

wih'_ new one.

SOOT OR CARBON IN BURNER OR COMBUS-

TION CHAMBER--SWEATING OF WALLS OR

WINDOWS

(i) Ir_.fficient Ventilation. Prov, de permanent

vent opening to outside,

(2) Smoke #pe or Flue Bl_.ked or Improperly

In._tane_ Check--and correct as required.

(3) Ventilating Fan Drawing Flue G_ Back

Down Flue pipe and Out o{ Diverter, Do not oper-

ate fan in vicinity of fm-n$ce, provide permanent
vent _ to oumide,

DELAYED OR NOISY IGNITION

ImprOl_r Briner Loe_tton. L-'_mekto see

t burners are properly seated in the _Dts pro-

vided in the rear of the heat exch_ler _

lighter (Key No. 12, .fig. 17) iS e_ in €#tt_b.
e_,-er/ burner.

(2) Inaufficient Pilot Flame. pilot Flme should

be visible and extend above cronligh_tr (or burners
on 75,000 BTU Models) V4 i.eh to _¢pinch.

_URNER FAILS TO RESPOND 'IX;,

THERMOSTAT

(1) Gas Valve Salty Switch May _e Ope,1- Shttt

_owta u_t and repeat starting L',J_JCtion_ (F4g¢

P). If bttrner fails to respol_d, pilot bume:

flame

may be at fault. Cheek to see that l_*LIotbl_'l_r
ignited, is burning steedily, and properly heating

the end of the thermoeouple. Check pilot }_urner
orifice (KeN No. 8, _. 17) for proper _ze and

_onelltioD.

(2) Poor Zaectrlcal Conn_ions, Cheek :,ll c*m-

trol terminals _nd wire joint,€,

(3) Gas "Valve Not _h_Jnetioning.

(4) Thermostat Not Functioning.

NOTE

_11 your Sears Service Technician for any of the

above which you cannot correct.

SHOP AT AND

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maintaining fumoce (€ont)

be sure to replace with same type fiker or one
whose rating is at least 650 ft rain,

s_T_ NO. SIZE OF

•INPUT REQ. FILT]_S

Use 75,000 1 16"x2F'x1"'

Corre¢_ 105,000 1 16"x25"xl"

Size 135.000 2 16"x25"x1"

150.000 2 16"x25"xl"
1TS,000 2 20"x25"xl"

" Refer to Table on Page 3 Or Mode/l_os.

CL.EAN FLUE PASSAGE

_x_ a¢ the begin=d_ _eeeh heating seas_. If

, unit is dirty artd requires ele_ntr_, your _

do this beet; b_ Fou _ _o a _ |_b Y_.

self with a .bornevse_. Q1mn_r. tf _ m amm_
S_ _ electric _ _ _ _ ._be

and_ (_) valve. _ _molr_ **_q[maxl

Draft Dirtier. The Flue Baffles wln no_ r m ez-

_ Remove _he _€_r l>b_ _ nee_m'y, mxt

out l_e _ P.eme_ the b_M_ k, 1_t.vmt

diz,t h.om _dting onzo them. "rn_ lmst ,__mm_
se_-tionscan now be cleaned by u=h=ga 1o_ ]mmdlmd
wix._brush and vacuum €_a_e. : ,_

When you have el_nod the pa_ages thoi_Ltghly re-

pla¢_ the parts in the rev_-_ order in. wl_=h they

were removed. More re_ the. stY, in_peet

it care_]Iy for _st o_ corrosion, and l_._ee any

_ee_to_ that show _ of deterlomti_ , i".

Cheek the burner_ for lint or dirt aat_ clean tf nsees-
ss_y. _.ep]_ burners in furnace.

SERVICE HINTS - FOR BETTER PERFORMANCE

INSUFFICIENT HEAT

(I) ]nL_)l_re_t Gas [I1p_t.

a, 1_cheek gas input as described on pages 11 & 12

-- and have GaS Comi_nY correct input, if
sary. If Gas Company advises, have your

Service Technician proper|y adlust pressure regu-

lator.

(b) Recheck the orifice . , . to make _ it

is the right size, :_r_€lnot clogged. If clogged, clean

out the hole _refully (do not ream it out or in
any way enlarge or distort it). Clean w_.th smooth
,rood pick.

(2) _ar_ace Overloaded, This can esp_ia]ly

happen when a dwelli_ is erdarge_ (by adding

on rooms or opening up previo_ly unused attic

s_e). H_ve a S_rs Sales ._neer cheek

required heat "load against tht turnace eapactry.
He will make proper and economical recommenda-

tions for solving t_s problem.

(3) Incorrect Gas Mixture or Flame,
(a) Flame should be soft blue, without orange

til_.

(b) Cheek for dust or Unt at air _ opemngs

and burner ports _ clean, if necessary.

ROOMS TOO HOT--OR SOME TOO COLD

(1) Thecmo_t Located _- Rud section

in th_ mantu_ on locating thermost_it_l re-
locateit as _.

(2) System Ou_ of Balance. li_dj.a dampen
ss exp_ in this manual

(_) Cheek care_Uy to ,_e _ fl..t rups e_

/umimr* are not _o_ or block_¢

(4) Cheek to see that return _d_ pa_ges are not
blocked by _lle_ insulation or new cmmructiea.

COLD FLOORS

(1) System Out o_ Ba]_tee. _ _ m

explained tu th_ manual . *

(2) Air Filters Dirty Replecethem.

(3) Blowe_ Not Operating Properly. iAd|ust for

slower speed and _.L_uous opera=_L Cheek

lubri_on of motor. Clean blower .w_£

BLOWER FAILSTO TURN ON PI40_

\

(I) Fan Control Adjusted too lli_h. _Uljust to u

• .

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