General Electric (GE) is a manufacturer of household appliances including: refrigerators, freezers, washers, dryers, dishwashers and stoves. Affixed to each appliance is a serial number plate which can give you information about the age of the appliance. The serial number format for the furnace data plate shown above uses the last three digits of the serial number for the year and week of manufacture, with the third from last being the year and final two numbers are the week. So “740” means this unit was produced in the 40th week of 1967, 1977, or 1987. Unit Substation. Three-Phase 2.4 Through 34.5 kV Class 112.5 Through 10000 kVA 15 Through 1500 kVA. I) Serial numbers with this format indicate transformer manufactured in Jefferson City or Athens. Ii) The first two digits indicate the year of manufacture e.g. S/N 79MJ121096 (1979 transformer). 9T51B10 - Manufacturer General Electric / GE Part Name: 9T51B10; 1 KVA 240/480V PRI - 120/240V SEC SINGLE PHASE WALL MOUNT TRANSFORMER T-1A-53315-3S - Manufacturer General Electric / GE Part Name: T-1A-53315-3S; 112.5 KVA 480 DELTA - 208Y/120 TRANSFORMER.
- Ge Transformer Serial Numbers Generator
- Ge Serial Number Chart
- Ge Transformer Serial Numbers Generator
- Ge Transformer Serial Numbers Lookup
- Ge Transformer Serial Numbers Doreen
- Reading Ge Serial Numbers
Relectric Product Catalog
Relectric Supply is one of the nation's leading suppliers of new surplus & reconditioned Breaker Parts. With thousands of different models in stock, we are certain to have just what you are looking for, even if you need an older, obsolete, or hard-to-find model. And don't forget that we have additional items that are not listed on our website. Please contact us if you don't see what you're looking for online.
405-SD-12969MA - Manufacturer General Electric / GE Part Name: 405-SD-12969MA; GEN; 208/115V; 5kVA; Transformer
9T83B3473G03 - Manufacturer General Electric / GE Part Name: 9T83B3473G03; AL 3P 45KVA 480-208Y/120 K13
9T23Q3464G03 - Manufacturer General Electric / GE Part Name: 9T23Q3464G03; 75kVA 480V Delta 208Y/120V Transformer
9T23Q9094G33 - Manufacturer General Electric / GE Part Name: 9T23Q9094G33; 75kVA 208V Delta 208Y/120V Transformer
9T83B3875 - Manufacturer General Electric / GE Part Name: 9T83B3875; 112.5 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T83B3874 - Manufacturer General Electric / GE Part Name: 9T83B3874; 75 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T58K2803G38 - Manufacturer General Electric / GE Part Name: 9T58K2803G38; .075 KVA 240/480-120/240V TRANSFORMER
9T51B0011 - Manufacturer General Electric / GE Part Name: 9T51B0011; 1.5kVA 480V TRANSFORMER
9T23L1574 - Manufacturer General Electric / GE Part Name: 9T23L1574; 75kVA 480V DELTA 208Y/120V TRANSFORMER
9T23Q9873 - Manufacturer General Electric / GE Part Name: 9T23Q9873; 45kVA 480V DELTA 208Y/120V TRANSFORMER
9T23Q9576G03A - Manufacturer General Electric / GE Part Name: 9T23Q9576G03A; 150kVA 480V DELTA 208Y/120V TRANSFORMER
9T23Q9574G83A - Manufacturer General Electric / GE Part Name: 9T23Q9574G83A; 45 kVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Q9574G03 - Manufacturer General Electric / GE Part Name: 9T23Q9574G03; 75kVA 480V DELTA 208Y/120V TRANSFORMER
9T23B3812 - Manufacturer General Electric / GE Part Name: 9T23B3812; 30kVA; 240V Delta; 208/120; Transformer
9T18Y7240 - Manufacturer General Electric / GE Part Name: 9T18Y7240; 3 PHASE 225 KVA LUG KIT
9T21S1070 - Manufacturer General Electric / GE Part Name: 9T21S1070; 7.50 KVA 480X456X432 - 240X240/120 SINGLE PHASE WALL MOUNT TRANSFORMER
9T86C9871G13 - Manufacturer General Electric / GE Part Name: 9T86C9871G13; 15 KVA 480 DELTA 280Y/120V 3 PHASE Transformers General Purpose
9T58K2806 - Manufacturer General Electric / GE Part Name: 9T58K2806; 200VA 480V to 120V
9T23Q9875G80 - Manufacturer General Electric / GE Part Name: 9T23Q9875G80; 75kVA 480V DELTA 208Y/120V TRANSFORMER
9T23B3868 - Manufacturer General Electric / GE Part Name: 9T23B3868; 1000kVA; 480V Delta; 208Y/120V; Nema 1; Transformer
9T58B503G30 - Manufacturer General Electric / GE Part Name: 9T58B503G30; GEN; 1P; .10kVA; 60Hz; Transformer
9T23Q97575G83A - Manufacturer General Electric / GE Part Name: 9T23Q97575G83A; 75kVA 480V Delta 208Y/120V Transformer
9T23Q9575G83A - Manufacturer General Electric / GE Part Name: 9T23Q9575G83A; 75kVA 480V DELTA 208Y/120V TRANSFORMER
9T58K0504G37 - Manufacturer General Electric / GE Part Name: 9T58K0504G37; 0.150 KVA 480V PRI 120V SEC 60Hz 1PH
9T23Q3041 - Manufacturer General Electric / GE Part Name: 9T23Q3041; 45kVA 480V Delta 208Y/120V Transformer
9T83C9873G15 - Manufacturer General Electric / GE Part Name: 9T83C9873G15; CU 3P 45KVA 480-208Y/120 115D
9T83B3466G13 - Manufacturer General Electric / GE Part Name: 9T83B3466G13; 150KVA 480-208Y/120V 60HZ
9T23B3846 - Manufacturer General Electric / GE Part Name: 9T23B3846; 150kVA; 480V Delta; 480V/277V; Transformer
Ge Transformer Serial Numbers Generator
9T23Q3476G14 - Manufacturer General Electric / GE Part Name: 9T23Q3476G14; 150kVA 480V DELTA 208Y/120V TRANSFORMER
9T21B1015G2 - Manufacturer General Electric / GE Part Name: 9T21B1015G2; 480V 10KVA 60HZ 1PH
9T51B0158 - Manufacturer General Electric / GE Part Name: 9T51B0158; ENCLOSED SMALL POWER TRANSFORMERS 208V .500KVA TFMR
9T51B130 - Manufacturer General Electric / GE Part Name: 9T51B130; 1.0 KVA 60HZ P/120/240V S/16/32V
9T23Q9857G13 - Manufacturer General Electric / GE Part Name: 9T23Q9857G13; 150kVA 480V DELTA 480Y/277V TRANSFORMER
9T23Q3072 - Manufacturer General Electric / GE Part Name: 9T23Q3072; 30kVA 480V Delta 208Y/120V Transformer
9T58B1814 - Manufacturer General Electric / GE Part Name: 9T58B1814; 9T58B1814; 1PH; 2KVA; 60Hz; Pri: 480V Sec: 120/240V; Transformers; Dry Type
9T23B3874G03 - Manufacturer General Electric / GE Part Name: 9T23B3874G03; 75kVA; 480V Delta; 208Y/120V; Transformer
9T18Y7242G02 - Manufacturer General Electric / GE Part Name: 9T18Y7242G02; 3 PHASE 225 KVA LUG KIT
9T58K0045G09 - Manufacturer General Electric / GE Part Name: 9T58K0045G09; CORE AND COIL SM PWR TRANSFORMERS 150VA MCH TOOL TFMR
9T83B3871 - Manufacturer General Electric / GE Part Name: 9T83B3871; 15KVA 480 DELTA - 208/120V TRANSFORMER
Ge Serial Number Chart
9T23B3858 - Manufacturer General Electric / GE Part Name: 9T23B3858; 300kVA; 480V Delta; 480V/277 V; Nema 1; Transformer
9T51B8 - Manufacturer General Electric / GE Part Name: 9T51B8; .500KVA 240/480 - 120/240V SINGLE PHASE WALL MOUNT TRANSFORMER
M9T22B4314 - Manufacturer General Electric / GE Part Name: M9T22B4314; GEN; M9T22B4314; 15 KVA; 480V; 60Hz; 1PH; Transformer
750X33G306 - Manufacturer General Electric / GE Part Name: 750X33G306; GEN; 750X33G306; Type JAK-0, Bolt-On, 800:5, RF=2.0 @ 30 Deg C Amb, 0.6KV
568TS-302 - Manufacturer General Electric / GE Part Name: 568TS-302; GEN; 568TS-302; 600V; 50-400Hz; Current Transformer
M154167 - Manufacturer General Electric / GE Part Name: M154167; 3PH; 2000/2666KVA; 12470-480Y/277V; 60Hz; Transformers; Dry Type
9T23A3874 - Manufacturer General Electric / GE Part Name: 9T23A3874; 75kVA; 480V Delta; 208Y/120V; 60Hz; 3Ph; Transformer
9T51B0013 - Manufacturer General Electric / GE Part Name: 9T51B0013; 3 KVA 240X480 TO 120/240 60 HZ
9T23B3874G33 - Manufacturer General Electric / GE Part Name: 9T23B3874G33; 75kVA 480V Delta - 208Y/120V Transformer
9551B190 - Manufacturer General Electric / GE Part Name: 9551B190; 249/263/277V/SEC 120/240V 1PH
9T51B190 - Manufacturer General Electric / GE Part Name: 9T51B190; PRI 249/263/277V/SEC 120/240V 1PH
9T83B3146G13 - Manufacturer General Electric / GE Part Name: 9T83B3146G13; 150 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Q3572 - Manufacturer General Electric / GE Part Name: 9T23Q3572; 30 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T10A1333 - Manufacturer General Electric / GE Part Name: 9T10A1333; 45 KVA 208 DELTA - 480 DELTA TRANSFORMER
9T23Q3044 - Manufacturer General Electric / GE Part Name: 9T23Q3044; 75 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T83C9874 - Manufacturer General Electric / GE Part Name: 9T83C9874; 75 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Q3461G03 - Manufacturer General Electric / GE Part Name: 9T23Q3461G03; 15 kVA 480V Delta 208Y/120V Transformer
9T23B3873G03 - Manufacturer General Electric / GE Part Name: 9T23B3873G03; 45 KVA 480V Delta - 208Y/120V Transformer
9T23Q9571G13A - Manufacturer General Electric / GE Part Name: 9T23Q9571G13A; 15 kVA 480V DELTA - 208Y/120V TRANSFORMER
9T23B3873G3 - Manufacturer General Electric / GE Part Name: 9T23B3873G3; 45 kVA 480V Delta - 208Y/120 Transformer
9T58B0503G30 - Manufacturer General Electric / GE Part Name: 9T58B0503G30; .100 kVA 1PH 60Hz 480V PRI - 120V SEC Transformer
9T83B873 - Manufacturer General Electric / GE Part Name: 9T83B873; 45 KVA 480 DELTA - 208Y/120V TRANSFORMER
9Q3A300AAAA00A2T00 - Manufacturer General Electric / GE Part Name: 9Q3A300AAAA00A2T00; 300 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T83B3878 - Manufacturer General Electric / GE Part Name: 9T83B3878; 300 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T56Y2808 - Manufacturer General Electric / GE Part Name: 9T56Y2808; .300KVA 240/480V 60CY TRANSFORMER
9T23Q3473G13 - Manufacturer General Electric / GE Part Name: 9T23Q3473G13; 45 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Q9877G80 - Manufacturer General Electric / GE Part Name: 9T23Q9877G80; 150 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23C4079G80 - Manufacturer General Electric / GE Part Name: 9T23C4079G80; 300 KVA 480 DELTA - 208Y/120V TRANSFORMER
568TS-302-1 - Manufacturer General Electric / GE Part Name: 568TS-302-1; 568TS-302-1 600V 50-400HZ Current Transformer
9T40G0005G83 - Manufacturer General Electric / GE Part Name: 9T40G0005G83; 112.5 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T83C9875G50 - Manufacturer General Electric / GE Part Name: 9T83C9875G50; 112.5 KVA 480 DELTA - 208Y/120V TRANSFORMER
9Q3A300AAAA00A2T50 - Manufacturer General Electric / GE Part Name: 9Q3A300AAAA00A2T50; 30 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T83C9876 - Manufacturer General Electric / GE Part Name: 9T83C9876; 150 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T64C9878G53 - Manufacturer General Electric / GE Part Name: 9T64C9878G53; 300 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23B3858G03 - Manufacturer General Electric / GE Part Name: 9T23B3858G03; General Electric; Transformer; 300kVA; 480-480Y/277; Indoor; Type QL
9T23L8077 - Manufacturer General Electric / GE Part Name: 9T23L8077; 225 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Q3472G83 - Manufacturer General Electric / GE Part Name: 9T23Q3472G83; 30 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23L8078 - Manufacturer General Electric / GE Part Name: 9T23L8078; 300 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Q3476G83 - Manufacturer General Electric / GE Part Name: 9T23Q3476G83; 112.5 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T22Y44283 - Manufacturer General Electric / GE Part Name: 9T22Y44283; 10 KVA 240/480 - 120/240V SINGLE PHASE TRANSFORMER
9T10A1003 - Manufacturer General Electric / GE Part Name: 9T10A1003; General Electric; Transformer; 45KVA; 3P; AL; 480-208Y/120; 150C; DOE
9T10A1004 - Manufacturer General Electric / GE Part Name: 9T10A1004; 75 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T21B9104 - Manufacturer General Electric / GE Part Name: 9T21B9104; 25 KVA 240/480 - 120/240V SINGLE PHASE TRANSFORMER
9T23A3876 - Manufacturer General Electric / GE Part Name: 9T23A3876; 150 KVA 480 DELTA - 208Y/120 TRANSFORMER
9T2303074 - Manufacturer General Electric / GE Part Name: 9T2303074; 75 KVA 480 DELTA - 208Y/120 TRANSFORMER
9T23Y3874 - Manufacturer General Electric / GE Part Name: 9T23Y3874; 75 KVA 480 DELTA - 208Y/120 TRANSFORMER
9T23Q4000G22 - Manufacturer General Electric / GE Part Name: 9T23Q4000G22; 15 KVA 460 DELTA - 460Y/266 TRANSFORMER
9T23Q3097G83 - Manufacturer General Electric / GE Part Name: 9T23Q3097G83; 150 KVA 208 DELTA - 208Y/120 TRANSFORMER
9T83B3475603 - Manufacturer General Electric / GE Part Name: 9T83B3475603; 112.5 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Q3574 - Manufacturer General Electric / GE Part Name: 9T23Q3574; 75KVA 480DELTA-208Y/120V TRANSFORMER
9T11A1003G03 - Manufacturer General Electric / GE Part Name: 9T11A1003G03; 45 KVA 480 DELTA - 208Y/120V DOE 2016 EFF AL TRANSFORMER
9T10A1002 - Manufacturer General Electric / GE Part Name: 9T10A1002; 30KVA 480DELTA- 208Y/120V TRANSFORMER
9T23Q9874G15 - Manufacturer General Electric / GE Part Name: 9T23Q9874G15; 45KVA 480DELTA - 208Y/120V TRANSFORMER
9T51Y26 - Manufacturer General Electric / GE Part Name: 9T51Y26; .200 KVA 120/240 PRI - 120/240 SEC DRY TYPE TRANSFORMER
9T11C1002G33 - Manufacturer General Electric / GE Part Name: 9T11C1002G33; 30KVA 480 DELTA - 208Y/120 Transformer
9T23B3488G03 - Manufacturer General Electric / GE Part Name: 9T23B3488G03; 300 KVA 480 DELTA - 208Y/120 TRANSFORMER
9T23Q3074 - Manufacturer General Electric / GE Part Name: 9T23Q3074; 75.0KVA 480 DELTA - 208Y/120V TRANSFORMER
9T10C1002 - Manufacturer General Electric / GE Part Name: 9T10C1002; 30KVA 3P CU 480-208Y/120 150C DOE
9T2309873 - Manufacturer General Electric / GE Part Name: 9T2309873; 480 DELTA - 208Y/120V 4.7IMP
PT83B3146G13 - Manufacturer General Electric / GE Part Name: PT83B3146G13; 150 KVA 60Hz 3PH 480 DELTA 208Y/120
9T23Q3075 - Manufacturer General Electric / GE Part Name: 9T23Q3075; 112.5 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Q9362G33 - Manufacturer General Electric / GE Part Name: 9T23Q9362G33; 112.5KVA 480 DELTA - 208Y/120 TRANSFORMER
9T83B3852G03 - Manufacturer General Electric / GE Part Name: 9T83B3852G03; 30KVA 480 DELTA - 480/277 TRANSFORMER
9T23A3875 - Manufacturer General Electric / GE Part Name: 9T23A3875; 112.5 kVA 480 Delta 208Y/120V 60Hz; 3Ph TRANSFROMER
9T23B3871G03 - Manufacturer General Electric / GE Part Name: 9T23B3871G03; 15.0KVA 480DELTA-208Y/120
Ge Transformer Serial Numbers Generator
9T23B3091G03 - Manufacturer General Electric / GE Part Name: 9T23B3091G03; 15.0KVA 208 DELTA - 208Y/120V TRANSFROMER
9T25B3873 - Manufacturer General Electric / GE Part Name: 9T25B3873; 75KVA 480 DELTA - 208Y/120V TRANSFROMER
9T83B3877 - Manufacturer General Electric / GE Part Name: 9T83B3877; 225 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23Y3878 - Manufacturer General Electric / GE Part Name: 9T23Y3878; 300 KVA 480 DELTA - 208Y/120V TRANSFORMER
9123A3872 - Manufacturer General Electric / GE Part Name: 9123A3872; 30 KVA 480 DELTA - 208Y/120V TRANSFORMER
9T83B3876 - Manufacturer General Electric / GE Part Name: 9T83B3876; 150KVA 480 - 208/120V TRANSFORMER
9T23A3872 - Manufacturer General Electric / GE Part Name: 9T23A3872; 30 KVA 480 DELTA - 208Y/120 TRANSFORMER
9T83B3873 - Manufacturer General Electric / GE Part Name: 9T83B3873; 45 KVA 480V DELTA - 208Y/120V TRANSFORMER
9T23B2673 - Manufacturer General Electric / GE Part Name: 9T23B2673; 50kVA; 240V/120V; Single Phase; Transformer
9T23Q3474G03 - Manufacturer General Electric / GE Part Name: 9T23Q3474G03; 75 KVA 480V DELTA - 208Y/120 TRANSFORMER
9T51B10 - Manufacturer General Electric / GE Part Name: 9T51B10; 1 KVA 240/480V PRI - 120/240V SEC SINGLE PHASE WALL MOUNT TRANSFORMER
T-1A-53315-3S - Manufacturer General Electric / GE Part Name: T-1A-53315-3S; 112.5 KVA 480 DELTA - 208Y/120 TRANSFORMER
9T23B3872G03 - Manufacturer General Electric / GE Part Name: 9T23B3872G03; 30 KVA 480 DELTA - 208Y/120 TRANSFORMER
9T23B3874 - Manufacturer General Electric / GE Part Name: 9T23B3874; 75kVA 480V DELTA 208Y/120V TRANSFORMER
9T23B3877 - Manufacturer General Electric / GE Part Name: 9T23B3877; 225kVA; 480V Delta; 208Y/120V; Transformer
9T23B3876 - Manufacturer General Electric / GE Part Name: 9T23B3876; 150kVA 480 Delta - 208Y/120V Transformer
9T23A3873 - Manufacturer General Electric / GE Part Name: 9T23A3873; 45kVA; 480V Delta; 208Y/120V; 60Hz; Transformer
9T58K0042G09 - Manufacturer General Electric / GE Part Name: 9T58K0042G09; CORE AND COIL SM PWR TRANSFORMERS 50VA MACH TOOL TFMR
9T23Q3475G83 - Manufacturer General Electric / GE Part Name: 9T23Q3475G83; 75kVA 480V Delta 208Y/120V Transformer
9T23B3875 - Manufacturer General Electric / GE Part Name: 9T23B3875; 112.5 KVA 480 Delta - 208Y/120V Transformer
9T23Q9577G03A - Manufacturer General Electric / GE Part Name: 9T23Q9577G03A; 225kVA 480V DELTA 208Y/120V TRANSFORMER
9T23B3873 - Manufacturer General Electric / GE Part Name: 9T23B3873; 45KVA 480 DELTA - 208Y/120V TRANSFORMER
9T23B2672 - Manufacturer General Electric / GE Part Name: 9T23B2672; 37.5 KVA 480/240V PRI - 120/240V SEC SINGLE PHASE TRANSFORMER
9T23B3871 - Manufacturer General Electric / GE Part Name: 9T23B3871; 15kVA 480V Delta 208Y/120V Transformer
9T23Q9874 - Manufacturer General Electric / GE Part Name: 9T23Q9874; 75kVA 480V DELTA 208Y/120V TRANSFORMER
9T23B3872 - Manufacturer General Electric / GE Part Name: 9T23B3872; 30KVA 480V Delta - 208Y/120V Transformer
9T23B3854 - Manufacturer General Electric / GE Part Name: 9T23B3854; 75kVA; 480V Delta; 480Y/277V; Transformer
9T23Q9565G03A - Manufacturer General Electric / GE Part Name: 9T23Q9565G03A; 112.5kVA 480V DELTA 208Y/120V TRANSFORMER
9T23Q3475G13 - Manufacturer General Electric / GE Part Name: 9T23Q3475G13; 112.5kVA 480V TRANSFORMER
9T23Q3476G03 - Manufacturer General Electric / GE Part Name: 9T23Q3476G03; 150kVA 480V Delta 208Y/120V Transformer
9T21B1037G02 - Manufacturer General Electric / GE Part Name: 9T21B1037G02; ENCLOSED MEDIUM POWER TRANSFORMERS 120/240V 5KVA TFMR
9T23B3878 - Manufacturer General Electric / GE Part Name: 9T23B3878; 300kVA; 480V Delta; 208Y/120V; Transformer
9T23Q3465G03 - Manufacturer General Electric / GE Part Name: 9T23Q3465G03; 112.5KVA Transformers
9T23Q3472G03 - Manufacturer General Electric / GE Part Name: 9T23Q3472G03; 45 kVA 480 Delta - 208Y/120 Transformer
9T23Q3477G03 - Manufacturer General Electric / GE Part Name: 9T23Q3477G03; 225kVA 480V DELTA 208Y/120V TRANSFORMER
9T23Q3475G03 - Manufacturer General Electric / GE Part Name: 9T23Q3475G03; 112.5 kVA 480 DELTA - 208Y/120V TRANSFORMER
9T23B2671 - Manufacturer General Electric / GE Part Name: 9T23B2671; 25kVA; 1 PH; 60Hz; Transformer
9T23Q3473G03 - Manufacturer General Electric / GE Part Name: 9T23Q3473G03; 45 kVA 480 DELTA - 208Y/120V TRANSFORMER
Ge Transformer Serial Numbers Lookup
How can I determine the age of a GE (General Electric) gas furnace or air conditioner from the serial number?
Thursday, June 14, 2018
Very, Very Old
If the unit has a GE nameplate, you don’t have to decode the serial number to get an answer: very, very old, at least 30+ years. General Electric sold their division that manufactured central heating and air conditioning equipment to Trane and ceased production in the 1980s. We have not come across a GE condenser in the last five years, but occasionally see a corroded gas or electric furnace still in chugging along—like this one we inspected yesterday.
General Electric used several different letter and number formats over the years, but the all-numerical versions had one thing in common. A single number indicated the last digit of the year of manufacture, which forces you to guess the decade by looking at the condition of the equipment.
The serial number format for the furnace data plate shown above uses the last three digits of the serial number for the year and week of manufacture, with the third from last being the year and final two numbers are the week. So “740” means this unit was produced in the 40th week of 1967, 1977, or 1987. We suspect it was 1977 because the home was built in 1978 and the furnace appears to be original equipment; but, either way, our all-purpose answer of “very, very old if it’s GE” still holds true.
For the age of another brand or manufacturer, go to our blog postHow do I determine the age of my air conditioner?
To determine other key specs of your HVAC system, see one of these other blog posts:
• How can I find out the SEER of my air conditioner?
• How can I tell whether the condenser (outdoor unit) is an air conditioner or heat pump?
Ge Transformer Serial Numbers Doreen
• How can I find out the size of my air conditioner?
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
To learn more about heating and air conditioning systems, see these other blog posts:
• My air conditioner won't turn on. What's wrong?
• Where is the air filter for my central air conditioner and furnace? I can’t find it?
• Does an old air conditioner use more electricity as it ages?
• How did homes stay cool in Florida before air conditioning?
• What is wrong with an air conditioner when the air flow out of the vents is low?
• Why has the thermostat screen gone blank?
• Why does it take so long to cool a house when an air conditioner has been off for a while?
• Why is my air conditioner not cooling enough?
• What are the most common problems with wall/window air conditioners?
• Will closing doors reduce my heating and cooling costs?
Reading Ge Serial Numbers
Visit our HEATING AND AIR CONDITIONING page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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