80% GMT, GDT, GMTH and
90% GMNT Gas Furnace Units
("B" and "D"Revisions Only)
GDT045-3B
GDT070-3B
GDT090-4B
GDT115-5B
GMNT040-3B
GMNT060-3B
GMNT080-4B
GMNT100-4B
GMNT120-5B
GMNT120-5D
GMT045-3B
GMT070-3B
GMT070-4B
GMT090-3B
GMT090-4B
GMT090-5B
GMT115-5B
GMT140-5B
GMT140-5D
GMTH045-3B
GMTH070-4B
GMTH090-5B
REPAIR PARTS
This manual is to be used by
qualified technicians only.
Made in the USA by:
Goodman Manufacturing Company, L.P.
2550 North Loop West, Suite 400
Houston Texas 77092
Copyright ©2002-03 Goodman Manufacturing Company, L.P.
RP - 299A
This manual replaces RP-299.
Important Information
Goodman Manufacturing Company, L.P. is not responsible for personal injury or property damage resulting from improper
service. Review all service information before beginning repairs.
Warranty service must be performed by an authorized technician, using authorized factory parts. If service is required after
the warranty expires, Goodman Manufacturing Company, L.P. also recommends contacting an authorized technician and
using authorized factory parts.
For assistance within the U.S.A. contact:
Consumer Affairs Department
Goodman Manufacturing Company, L.P.
7401 Security Way
Houston, Texas 77040
877-254-4729-Telephone
713-863-2382-Facsimile
For assistance outside the U.S.A. contact:
International Division
Goodman Manufacturing Company, L.P.
7401 Security Way
Houston, Texas 77040
713-861-2500-Telephone
713-863-2382-Facsimile
Copyright ©2002-03 Goodman Manufacturing Company, L.P.
2
RP - 299A 0Rev.
Index
Functional Parts List
Illustration and Parts
Views shown are for parts illustrations only, not servicing procedures.
Revision A: Adds models GMT140-5D and GMNT120-5D.
Text Codes:
AR - As Required
NA - Not Available
NS - Not Shown
00000000 - See Note
QTY - Quantity Example (QTY 3) (If Quantity not shown, Quantity = 1)
M - Model Example (M1) (If M Code not shown, then part is used on all Models)
Expanded Model Nomenclature:
................................................................................................
................................................................................................
4 - 5
6 - 15
Example
M1 - Model#1
M2 - Model#2
3 RP - 299A 0Rev.
Functional Parts
Part
No:
B1370155 AUXILLIARY LIMIT SWITCH
B1368047A BLOWER WHEEL, 10X10 (M6, M7, M12, M19, M21, M22)
B1368034 BLOWER WHEEL, 10X6 (M1, M2, M9, M10, M13, M16, M17)
B1368016 BLOWER WHEEL, 10X8 (M3, M4, M5, M11, M14, M18)
B1368000 BLOWER WHEEL, 11X10 (M8, M15, M20)
B945672 CAPACITOR, 12.5/370 (M1, M2, M4, M8, M9, M10, M14, M15, M16, M17,
B945665 CAPACITOR, 20/370 (M3, M5, M6, M7, M11, M12, M13, M18, M19)
B945666 CAPACITOR, 25/270 (M21, M22)
B1172606 FLAME SENSOR
B4089343 GAS ORIFICE, #43 (M1, M2, M3, M4, M5, M6, M7, M8, M9, M10, M11,
B4089345 GAS ORIFICE, #45 (M16, M17, M18, M19, M20, M22)
B1282628 GAS VALVE, H.S.I.
4021300S HEAT EXCHANGER SUB ASM., 2 CL, 14” (M1, M9, M13)
4021307S HEAT EXCHANGER SUB ASM., 3 CL, 14” (M2, M10)
4021308S HEAT EXCHANGER SUB ASM., 3 CL, 17.5” (M3, M14)
4021309S HEAT EXCHANGER SUB ASM., 4 CL, 17.5” (M4, M5, M11)
4021310S HEAT EXCHANGER SUB ASM., 4 CL, 21” (M6, M15)
4021311S HEAT EXCHANGER SUB ASM., 5 CL, 21” (M7, M12)
4021312S HEAT EXCHANGER SUB ASM., 6 CL, 24.5” (M8, M21)
B1401015S HOT SURFACE IGNITOR
B1809913S HSI BOARD W/9-PIN CONNECTOR
B4022700 INSHOT BURNER, 3” (QTY AR)
20046618 MOTOR DIRECT DRIVE 3/4 H.P. (M21, M22)
B1340024 MOTOR, DIRECT DRIVE, 1/2 H.P. (M3, M5, M6, M7, M11, M12, M13,
B1340025 MOTOR, DIRECT DRIVE, 1/3 H.P. (M1, M2, M4, M9, M10, M16, M17)
B1340023 MOTOR, DIRECT DRIVE, 3/4 H.P. (M8, M14, M15, M20)
4821400S PRIMARY HEAT EXCHANGER ASM., 2 CL, 14” (M16)
4821401S PRIMARY HEAT EXCHANGER ASM., 3 CL, 14” (M17)
4821402S PRIMARY HEAT EXCHANGER ASM., 4 CL, 17.5” (M18)
4821403S PRIMARY HEAT EXCHANGER ASM., 5 CL, 21” (M19)
4821404S PRIMARY HEAT EXCHANGER ASM., 6 CL, 24.5” (M20, M22)
B1370205 PRIMARY LIMIT SWITCH, 140F (M21)
B1370198 PRIMARY LIMIT SWITCH, 150F (M2, M3, M4, M5, M8, M14)
B1370187 PRIMARY LIMIT SWITCH, 160F (M7, M17)
B1370188 PRIMARY LIMIT SWITCH, 170F (M16, M19, M20)
B1370206 PRIMARY LIMIT SWITCH, 180F (M22)
B1370199 PRIMARY LIMIT SWITCH, 190F (M13)
B1370189 PRIMARY LIMIT SWITCH, 200F (M1, M6, M15, M18)
B1370191 PRIMARY LIMIT SWITCH, 220F (M12)
B1370193 PRIMARY LIMIT SWITCH, 240F (M10)
B1370194 PRIMARY LIMIT SWITCH, 250F (M11)
B1370195 PRIMARY LIMIT SWITCH, 300F (M9)
B1370145 ROLLOUT SWITCH, 300 W/O BRACKET (QTY AR)
2864604S SECONDARY HEAT EXCHANGER COIL, 14” (M16, M17)
2864605S SECONDARY HEAT EXCHANGER COIL, 17.5” (M18)
2864606S SECONDARY HEAT EXCHANGER COIL, 21” (M19)
2864607S SECONDARY HEAT EXCHANGER COIL, 24.5” (M20, M22)
B1370254 STACK OVER TEMP. SWITCH (M16, M17, M18, M19, M20, M22)
B1141605 TRANSFORMER
B4059001 VENT MOTOR (M1, M2, M3, M4, M5, M6, M7, M8, M9, M10, M11, M12,
Description:
M20)
M12, M13, M14, M15, M21)
M18, M19)
M13, M14, M15, M21)
4 RP - 299A 0Rev.
Functional Parts
Part
No:
B4833000 VENT MOTOR (M16, M17, M18, M19, M20, M22)
4078401S WIRE HARNESS KIT, GDT (M9, M10, M11, M12)
4878400S WIRE HARNESS KIT, GMNT (M16, M17, M18, M19, M20, M22)
4078400S WIRE HARNESS KIT, GMT & GMTH (M1, M2, M3, M4, M5, M6, M7, M8,
SPECIAL PARTS
IO-231 INSTALLATION AND OWNERS MANUAL
RP-299A REPAIR PARTS MANUAL
Expanded Model and Color Nomenclature
M1 - GMT045-3B
M2 - GMT070-3B
M3 - GMT070-4B
M4 - GMT090-3B
M5 - GMT090-4B
M6 - GMT090-5B
M7 - GMT115-5B
M8 - GMT140-5B
M9 - GDT045-3B
M10 - GDT070-3B
M11 - GDT090-4B
M12 - GDT115-5B
M13 - GMTH045-3B
M14 - GMTH070-4B
M15 - GMTH090-5B
M16 - GMNT040-3B
M17 - GMNT060-3B
M18 - GMNT080-4B
M19 - GMNT100-4B
M20 - GMNT120-5B
M21 - GMT140-5D
M22 - GMNT120-5D
Description:
M13, M14, M15, M21)
5 RP - 299A 0Rev.