24vac Transformer


ALTRONIX T24130D Class 2 Transformer 24VAC 100 VA
$29.01
Time Remaining: 12d 7h 10m
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GE 453XT1AJ2E 75VA CONTROL TRANSFORMERS 120 24 VAC
$17.50
Time Remaining: 12d 7h 47m
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FUNCTIONAL DEVICES INC RIB TR75VA001 Class 2 Transformer 24VAC 75 VA 1 PH
$18.52
Time Remaining: 16d 21h 49m
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FUNCTIONAL DEVICES INC RIB TR75VA005 Class 2 Transformer 24VAC 75 VA 1 PH
$20.52
Time Remaining: 22d 22h 50m
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WHITE RODGERS 90 T60C3 Class 2 Transformer 24VAC 60 VA 1 PH
$27.43
Time Remaining: 21d 18h 1m
Buy It Now for only: $27.43
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POWER TRANSFORMER 120 208 240 VAC 60HZ PRIMARY 24VAC SECONDARY 300VA Y69T15 0
$18.00
Time Remaining: 29d 13h 40m
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Transformer 24Vac Class 2 120Vac to 24 Vac 40VA Lamination Type 60 Hz
$23.50
Time Remaining: 16d 19h 8m
Buy It Now for only: $23.50
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New DAYTON 4TGX7 Transformer Ctrl120V40VA 24VAC Class 2
$19.99
Time Remaining: 26d 7h 2m
Buy It Now for only: $19.99
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New RIB Class 2 Transformer120V 24VAC 50 VA 1 PH TR50VA005
$16.99
Time Remaining: 28d 10h 39m
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Foot Mount 50VA 24VAC Class 2 Transformer w Current Protector
$21.00
Time Remaining: 24d 4h 47m
Buy It Now for only: $21.00
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ACME Electric Transformer T 1 81052 120 240VAC 12 24VAC 750VA
$31.25
Time Remaining: 20d 21h 44m
Buy It Now for only: $31.25
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New Honeywell Transformer AT140A1000 Secondary 24VAC 40Va Primary 120V 60Hz
$18.95
Time Remaining: 6d 16h 29m
Buy It Now for only: $18.95
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Steveco 90 5031M 50VA Transformer Pri 120 208 240 Sec 24VAC Multi Mount
$15.99
Time Remaining: 29d 3h 28m
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Transformer HCT 01E0BB06 Pri 120VAC Sec 24VAC 40VA
$16.00
Time Remaining: 6d 7h 40m
Buy It Now for only: $16.00
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FUNCTIONAL DEVICES INC RIB TR100VA001 Class 2 Transformer 24VAC 100 VA 1 PH
$31.92
Time Remaining: 9d 20h 39m
Buy It Now for only: $31.92
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AT150F1022 Honeywell circuit breaker transformer pri120208240 VAC 24 vac
$19.99
Time Remaining: 12d 13h 9m
Buy It Now for only: $19.99
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Power Transformer 120 VAC to 24 VAC Center Tap 12A
$15.99
Time Remaining: 11d 8h 9m
Buy It Now for only: $15.99
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Square D 9070T50D2 Control Transformer 240 480VAC Primary 24VAC Secondary
$21.95
Time Remaining: 25d 4h 22m
Buy It Now for only: $21.95
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Tyco 4000 13E07K662 Transformer 5 1611455 7 40VA 24 VAC
$16.99
Time Remaining: 29d 7h 17m
Buy It Now for only: $16.99
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NEW ALTRONIX 24VAC OUTPUT 100VA OUTPUT T24130 OPEN FRAME TRANSFORMERS
$19.99
Time Remaining: 16d 15h 12m
Buy It Now for only: $19.99
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12V Transformer 12V 0 12V CT 3AMP 3000mA 110VAC to 12VAC 24VAC NEW
$19.99
Time Remaining: 16d 10h 10m
Buy It Now for only: $19.99
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Tyco Electronics Control Transformer Box Of 10 120VAC to 24VAC 50VA 50 60Hz
$100.00
Time Remaining: 25d 10h 42m
Buy It Now for only: $100.00
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Heartland Transformer HCT 01C0BB09 PRI 120VAC SEC 24VAC 50 VA
$20.00
Time Remaining: 12d 15h 14m
Buy It Now for only: $20.00
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Square D 50SV43A General Transformer 120 240VAC to 12 24VAC 50VA
$45.00
Time Remaining: 24d 6h 9m
Buy It Now for only: $45.00
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WHITE RODGERS 90 T75C3 Class 2 Transformer 24VAC 75 VA 1 PH
$32.97
Time Remaining: 6d 19h 45m
Buy It Now for only: $32.97
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Case of 6 WHITE RODGERS 90 T40F3 Class 2 Transformer 24VAC 40 VA 1 PH 6WU91
$69.90
Time Remaining: 26d 16h 54m
Buy It Now for only: $69.90
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Lot of 2 Basler Electric 200 230 VAC Primary 24 VAC Secondary Transformer 75VA
$35.00
Time Remaining: 17d 6h 27m
Buy It Now for only: $35.00
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8 Veris Industries Control Transformer w Foot Hub Mount 75VA 120VAC 24VAC Hub
$79.99
Time Remaining: 29d 13h 58m
Buy It Now for only: $79.99
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4031PT POWER TRANSFORMER PRI120 208 240V SEC24VAC 40VA
$59.95
Time Remaining: 22d 13h 31m
Buy It Now for only: $59.95
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FUNCTIONAL DEVICES INC RIB PSH40AB10 Class 2 Transformer 24VAC 40 VA 1 PH
$40.00
Time Remaining: 16d 12h 19m
Buy It Now for only: $40.00
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NEW Impact CCTV IM P2420 Power Supply 24VAC 20VA wall plug MGT2420
$16.98
Time Remaining: 16d 12h 24m
Buy It Now for only: $16.98
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Tyco Electronics PRI 277VAC 50VA 50 60Hz SEC 24VAC Transformer 400K42F0 03AW18
$17.50
Time Remaining: 29d 5h 22m
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FUNCTIONAL DEVICES INC RIB TR175VA001 Class 2 Transformer 24VAC 175 VA 1 PH
$36.66
Time Remaining: 10d 22h 44m
Buy It Now for only: $36.66
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Honeywell Universal Transformer AT140A 1018 24 VAC 40 VA120 208 240 Volt
$21.96
Time Remaining: 17d 4h 39m
Buy It Now for only: $21.96
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STEP DOWN TRANSFORMERS 75VA 120 24VAC 60Hz 30T 5019 24V
$19.99
Time Remaining: 1d 5h 1m
Buy It Now for only: $19.99
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ELK Plug in Transformer ELK TRG2440 24VAC 40A
$20.00
Time Remaining: 2d 10h 50m
Buy It Now for only: $20.00
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FUNCTIONAL DEVICES INC RIB TR75VA003 Class 2 Transformer 24VAC 75 VA 1 PH
$20.25
Time Remaining: 3d 7h 56m
Buy It Now for only: $20.25
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Hevi Duty W050D Control Transformer 50 Va 005 Kva 240 480 X 24 VAC NIB
$29.99
Time Remaining: 11d 8h 24m
Buy It Now for only: $29.99
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FUNCTIONAL DEVICES INC RIB TR75VA002 Class 2 Transformer 24VAC 75 VA 1 PH
$22.72
Time Remaining: 12d 7h 4m
Buy It Now for only: $22.72
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New Johnson Controls AS XFR100 1 Transformer Kit 120 24 VAC w Power Switch
$45.00
Time Remaining: 22d 12h 51m
Buy It Now for only: $45.00
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FUNCTIONAL DEVICES INC RIB TR375VA001 Class 2 Transformer 24VAC 375 VA 1 PH
$53.98
Time Remaining: 9d 13h 46m
Buy It Now for only: $53.98
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FUNCTIONAL DEVICES INC RIB TR50VA019 Class 2 Transformer 24VAC 50 VA 1 PH
$21.85
Time Remaining: 7d 10h 43m
Buy It Now for only: $21.85
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HONEYWELL MULTI MOUNT AT72D1683 NEMA Rated CONTROL TRANSFORMER 24VAC 40VA
$25.50
Time Remaining: 26d 9h 53m
Buy It Now for only: $25.50
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Dormeyer DCT 40 120 Foot or 1 2 NPT Hub 120VAC 24VAC Transformer 40VA New
$18.00
Time Remaining: 24d 4h 59m
Buy It Now for only: $18.00
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Totaline P201 35150 Transformer 50va pri 120 208 240vac sec 12 24vacNew
$16.99
Time Remaining: 7d 3h 36m
Buy It Now for only: $16.99
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CUTLER HAMMER C0075E1B INDUSTRIAL CONTROL TRANSFORMER PRI 120 240 SEC 24VAC
$45.00
Time Remaining: 23d 7h 14m
Buy It Now for only: $45.00
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FUNCTIONAL DEVICES INC RIB TR50VA006 Class 2 Transformer 24VAC 50 VA 1 PH
$16.37
Time Remaining: 6d 22h 22m
Buy It Now for only: $16.37
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Lot of 2 ALTRONIX T24130 Transformers 24VAC 100 VA
$19.99
Time Remaining: 20d 10h 32m
Buy It Now for only: $19.99
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Siemens MT0050B Transformer Prim 240 480VAC Sec 24VAC 50Va Fused LNC
$19.99
Time Remaining: 7h 59m
Buy It Now for only: $19.99
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Power Transformer 117VAC 24VAC Center Tap 12 0 12 5A 28N073
$23.95
Time Remaining: 24d 11h 13m
Buy It Now for only: $23.95
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Cerus 10051MWCB Transformer Primary 120 208 240 277 480V Sec 24VAC
$21.24
Time Remaining: 4d 6h 56m
Buy It Now for only: $21.24
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Power Transformer 117VAC 24VAC Center Tap 12 0 12 3A 28N091
$18.95
Time Remaining: 24d 12h 53m
Buy It Now for only: $18.95
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93132 Old Stock Honeywell 198162F Cover Assembly w Transformer 24Vac 40VA
$30.44
Time Remaining: 26d 15h 42m
Buy It Now for only: $30.44
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Hammond EE2G Control Transformer Primary 120vac Secondary 24vac NEW
$43.50
Time Remaining: 15d 11h 15m
Buy It Now for only: $43.50
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PACKARD 120 208 240V CLASS 2 TRANSFORMER 24VAC 40VA NEW BOXED
$26.50
Time Remaining: 18d 2h 6m
Buy It Now for only: $26.50
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Honeywell XFMR AT175F1023 PRI 120 208 240V SEC 24VAC Listed Class 2 Tranformer
$29.75
Time Remaining: 22d 12h 16m
Buy It Now for only: $29.75
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LOT OF 14 HONEYWELL AT72D 1683 TRANSFORMER 120V PRMARY 24 VAC SECONDARY 40VA
$99.00
Time Remaining: 2d 1h 56m
Buy It Now for only: $99.00
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TR75VA002 Class 2 Transformer 24VAC 75 VA 1 PH HVAC 24 Volt Transformer
$40.00
Time Remaining: 10d 3h 53m
Buy It Now for only: $40.00
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New In Box Johnson Controls Y68AA 1 Transformer 120VAC 24VAC 60Hz
$30.00
Time Remaining: 27d 7h 8m
Buy It Now for only: $30.00
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HONEYWELL MULTI MOUNT AT72D1683 NEMA Rated CONTROL TRANSFORMER 24VAC 40VA NEW
$29.50
Time Remaining: 22d 8h 1m
Buy It Now for only: $29.50
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Hartland Controls HCT60D0BB06 24vac 50va transformer new Bulk IA
$15.00
Time Remaining: 9d 13h 51m
Buy It Now for only: $15.00
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12VAC+12VAC24VAC 15A Power Transformer TR BX2421A 311
$22.99
Time Remaining: 27d 16h 7m
Buy It Now for only: $22.99
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New Johnson Controls AS XFR100 1 Transformer Kit 120 24 VAC w Power Switch
$35.00
Time Remaining: 10d 5h 41m
Buy It Now for only: $35.00
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My thermostat for my heating and air just completely went blank. It's digital any ideas why?

It depends is your t-stat battery powered if it is change the batteries, if not it is powered by a 24vac transformer, and it could have went bad, or the t-stat is dead.

Also a wire could have came loose either the red 24vac power wire to the transformer or the common black wire.

Also the 3 amp fuse on the furnaces control board may have blown for some reason.

You need a volt meter and start checking around but if you don't know how to use it, you had better call in the professionals.

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