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SWT01258 American Standard Trane Furnace Limit Switch

$32.00 $24.00

The SWT01258 American Standard, Trane Furnace Limit Switch is a brand new OEM factory limit switch that comes in a Service First Factory OEM box. The SWT01258 Limit Switch is used on many Trane and American Standard furnaces. Please see the list of furnace models where this limit is used below. The specifications on the furnace limit switch are: THERMAL LIMIT, OPEN @ 170 F, CLOSE @ 140 DEG F.  This means that this limit switch opens and cuts off the gas burners when the temperature inside the furnace heat exchanger reaches 170 F and closes back to allow the burners to come back on when the heat exchanger reaches a temperature of 140 Degrees F. Same Business Day Fast Shipping! We have a YouTube video below which shows how to test and troubleshoot a gas furnace limit switch.

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  • The SWT01258 American Standard Trane Furnace Limit Switch is a brand new OEM factory limit switch that comes in a Service First Factory OEM box.
  • The SWT01258 Limit Switch is used on many Trane and American Standard furnaces. The limit switch goes by part numbers: C340056P02 and SWT01258.
  • Below we have a list of furnace models where this limit switch is used.
  • The specifications on the furnace limit switch are: THERMAL LIMIT, OPEN @ 170 F, CLOSE @ 140 DEG F. This means that this limit switch opens and cuts off the gas burners when the temperature inside the furnace heat exchanger reaches 170 F and closes back to allow the burners to come back on when the heat exchanger reaches a temperature of 140 Degrees F.
  • FYI (For Your Information):
    • A furnace limit is a safety device that is used to cut the gas burners off if the furnace over-heats.
    • If your furnace is going off on limit you might have an air flow problem like a dirty filter, dirty blower, slow blower motor (might need a new capacitor) stopped up evaportator coil or too much gas pressure.
    • All of these can cause the furnace to over-heat and go off on limit.
    • Many times when the furnace goes off on limit the fan blower will continuously blow because the furnace control board senses that the furnace has over-heated and needs to cool down.
    • The only way to get the blower to cut off is to turn off the furnace with the power switch.
    • You can test a limit with a volt meter to see if it is open or not. On most limits you should get 24 volts from each of the two wires on the limit to a good ground.
    • Below we have a YouTube video made by GrayFurnaceman that shows how to test and troubleshoot a gas furnace limit switch.
  • Please send us your furnace model number if you would like for us to check and make sure this is the right limit for your furnace. Our email address is: Support@arnoldservice.com 
  • We would Love to Help You Out and Earn Your Business!

SWT01258 American Standard Trane Furnace Limit Switch

Below we have a list of American Standard and Trane furnace model numbers where the SWT01258 limit is used:

AUD040C924A1 AUD040C924B0 AUD040C924B1 AUD040C924H0 AUD040C924H1 AUD040C924H3 AUD040C924H4 AUD040C924J0 AUD040C924J1 AUD040C924K0 AUD040C924K1 AUD040C924K2 AUD040C924K4 AUD040R924A1 AUD040R924A2 AUD040R924H0 AUD040R924H1 AUD040R924H3 AUD040R924H4 AUD040R924J0 AUD040R924J1 AUD040R924K0 AUD040R924K1 AUD040R924K2 AUD040R924K4 AUD040R924K5 AUD100C936A1 AUD100C936B0 AUD100C936B1 AUD100C936H0 AUD100C936H1 AUD100C936H3 AUD100C936H4 AUD100C936J0 AUD100C936J1 AUD100C936K0 AUD100C936K1 AUD100C936K2 AUD100C936K4 AUD100R936A1 AUD100R936A2 AUD100R936H0 AUD100R936H1 AUD100R936H2 AUD100R936H3 AUD100R936H4 AUD100R936J0 AUD100R936J1 AUD100R936K0 AUD100R936K1 AUD100R936K2 AUD100R936K4 AUD100R936K5 AUD1A040A9241AA AUD1A040A9241AB AUD1A040A9H21AA AUD1A040A9H21BA AUD1A040A9H21BB AUD1B100A9361AA AUD1B100A9361AB AUD1B100A9H31AA AUD1B100A9H31BA AUD1B100A9H31BB AUD2A040A9242AA AUD2A040A9242AB AUD2A040A9242AC AUD2B060AFV32AA AUD2B060AFV32AB AUD2B080AFV32AA AUD2B080AFV32AB AUD2B100A9362AA AUD2B100A9362AB AUD2B100A9362AC AUE1A040A9241AA AUE1A040A9241AB AUE1A040A9241AC AUE1B100A9361AA AUE1B100A9361AB AUE1B100A9361AC CUB040A924A0 CUB040A924B0 CUB040A924B1 CUB040A924C0 CUB040A924C1 CUB040A924C3 CUB040A924C4 CUB100A936A0 CUB100A936B0 CUB100A936B1 CUB100A936C0 CUB100A936C1 CUB100A936C3 CUB100A936C4 CUB1A040A9241AA CUB1A040A9241AB CUB1A040A9241AC CUB1B100A9361AA CUB1B100A9361AB CUB1B100A9361AC CUD100C936A1 CUD100C936A2 CUD100C936A3 CUD100R936A1 CUD100R936A2 CUD100R936A3 CUE040A924H1 CUE040A924K0 CUE040A924K1 CUE100A936H1 CUE100A936K0 CUE100A936K1 FUAA040A20A0 FUAA040A20A1 FUAA040A20B0 FUAA040A20B1 FUAA040A20C0 FUAA040A20D0 FUAA040A20D1 FUAA040A20E0 TUD040C924A0 TUD040C924A1 TUD040C924B0 TUD040C924B1 TUD040C924H0 TUD040C924H1 TUD040C924H3 TUD040C924H4 TUD040C924J0 TUD040C924J1 TUD040C924K0 TUD040C924K1 TUD040C924K2 TUD040C924K4 TUD040R924A0 TUD040R924A1 TUD040R924A2 TUD040R924H0 TUD040R924H1 TUD040R924H3 TUD040R924H4 TUD040R924J0 TUD040R924J1 TUD040R924K0 TUD040R924K1 TUD040R924K2 TUD040R924K4 TUD040R924K5 TUD100C936A0 TUD100C936A1 TUD100C936B0 TUD100C936B1 TUD100C936H0 TUD100C936H1 TUD100C936H3 TUD100C936H4 TUD100C936J0 TUD100C936J1 TUD100C936K0 TUD100C936K1 TUD100C936K2 TUD100C936K4 TUD100R936A0 TUD100R936A1 TUD100R936A2 TUD100R936H0 TUD100R936H1 TUD100R936H2 TUD100R936H3 TUD100R936H4 TUD100R936J0 TUD100R936J1 TUD100R936K0 TUD100R936K1 TUD100R936K2 TUD100R936K4 TUD100R936K5 TUD1A040A9241AA TUD1A040A9241AB TUD1A040A9H21AA TUD1A040A9H21BA TUD1A040A9H21BB TUD1B100A9361AA TUD1B100A9361AB TUD1B100A9H31AA TUD1B100A9H31BA TUD1B100A9H31BB TUD2A040A9242AA TUD2A040A9242AB TUD2A040A9242AC TUD2B060AFV32AA TUD2B060AFV32AB TUD2B080AFV32AA TUD2B080AFV32AB TUD2B100A9362AA TUD2B100A9362AB TUD2B100A9362AC TUE040A924A0 TUE040A924A1 TUE040A924B0 TUE040A924H0 TUE040A924H1 TUE040A924K0 TUE040A924K1 TUE040A924K2 TUE040A924K3 TUE040A924L0 TUE040A924L1 TUE040A924L3 TUE100A936H0 TUE100A936H1 TUE100A936K0 TUE100A936K1 TUE100A936K2 TUE100A936K3 TUE100A936L0 TUE100A936L1 TUE100A936L2 TUE100A936L3 TUE1A040A9241AA TUE1A040A9241AB TUE1A040A9241AC TUE1B100A9361AA TUE1B100A9361AB TUE1B100A9361AC TUJ040A924A0 TUJ040A924A1

Below we have a YouTube video which shows how to troubleshoot a furnace limit switch:

 

Additional information

Weight1.0 lbs
Dimensions10 × 6 × 7 in