HH18HA148 – AUTO LIMIT SWITCH (MICRO, LARGE BASE, L150°)
SKU · HH18HA148
$23.61
Carrier HH18HA148 auto reset limit switch, opens at 150°F. Large base, micro size. Crosses to 20162904S. OEM for Carrier, Bryant, and Payne systems.
Product images are representative. Always verify compatibility with your model number before visiting us in store.
Need help finding the right part?
We test parts at the counter and match the right replacement. Walk in or call ahead.
All parts 1,617Equipment & Systems 119Filters & Air Quality 106Air Distribution 276Furnace & Heating 51Refrigeration 90Thermostats & Zone Controls 23Switches & Sensors 168Electrical Components 277Motors & Blower Parts 161Tools & Supplies 349
Showing 1–48 of 83 results
-
In Stock
CARRIER -
Low Stock
SUPCOSHL517 – HIGH TEMPERATURE LIMIT SWITCH (3″, L220°)
SKU · HH12ZB220$35.14Supco SHL517 high limit switch, 3-inch insertion, opens at 220°F, closes at 180°F. Auto reset. Crosses to Carrier HH12ZB220 and Lennox 29M75.
-
Low Stock
CARRIERHH18HA461 – MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L160°)
SKU · HH18HA461$25.61Carrier HH18HA461 manual reset limit switch, opens at 160°F. Large base, micro size. Also crosses to HH18HA167. OEM for Carrier, Bryant, and Payne systems.
-
In Stock
UNIVERSALDL290 – LIMIT SWITCH
SKU · L290$16.66Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch.
-
Low Stock
UNIVERSAL60M61 – ROLLOUT SWITCH
SKU · 60M61$29.70Flame rollout switch – a safety control that trips when flames roll out of the burner box, cutting the gas valve circuit.
-
In Stock
SUPCOAT012 – ADJUSTABLE DISC LIMIT SWITCH (135° to 175°)
SKU · ELE-AT012$22.91Supco AT012 adjustable disc limit switch, 135°F to 175°F range. SPST open-on-rise. Crosses to E144 and PT012. Universal fit for furnaces and heating equipment.
-
Low Stock
SUPCOSHL509 – HIGH TEMPERATURE LIMIT SWITCH (3″, L240°)
SKU · SHL509$35.14Supco SHL509 high limit switch, 3-inch insertion, opens at 240°F, closes at 210°F. Auto reset. Crosses to Carrier HH12ZB240. Universal furnace replacement.
-
In Stock
GOODMANB1370108 – MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L300°)
SKU · B1370108$19.60Goodman B1370108 manual reset rollout limit switch, opens at 300°F. Large base, micro size. OEM safety switch for Goodman/Amana furnaces.
-
In Stock
CARRIERHH18HA452 – MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L250°)
SKU · HH18HA452$26.00Carrier HH18HA452 manual reset rollout limit switch, opens at 250°F. Large base, micro size. OEM flame rollout switch for Carrier, Bryant, and Payne furnaces.
-
Low Stock
CARRIERHH12ZB140 – HIGH LIMIT SWITCH (3″, L140°)
SKU · HH12ZB140$35.18Carrier HH12ZB140 high limit switch, 3-inch insertion, opens at 140°F. Auto reset. Crosses to Supco SHL507, Trane SWT01276. Universal 3-inch L140 replacement.
-
Low Stock
NORDYNE626458R – DOUBLE STACK LIMIT SWITCH (L190°)
SKU · 626458$42.58Nordyne 626458R double-pole limit switch, opens at 190°F. Dual-stack design for Nordyne, Miller, and Intertherm furnaces. Also listed as 626458.
-
Low Stock
RHEEM47-104990-04 – HIGH TEMPERATURE LIMIT SWITCH (3″, ODD BASE, L150°)
SKU · 47-104990-04$34.19Rheem 47-104990-04 high limit switch, 3-inch insertion, odd base, opens at 150°F. Auto reset. OEM replacement for Rheem and Ruud furnaces.
-
In Stock
SUPCOSHL513 – HIGH TEMPERATURE LIMIT SWITCH (3″, L170°)
SKU · HH12ZB170$35.14Supco SHL513 high limit switch, 3-inch insertion, opens at 170°F, closes at 130°F. Auto reset. Crosses to Carrier HH12ZB170. Universal furnace fit.
-
Low Stock
CARRIERHH18HA449 – MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L350°)
SKU · HH18HA449$36.67Carrier HH18HA449 manual reset limit switch, opens at 350°F. Large base, micro size. Used as a flame rollout switch on Carrier, Bryant, and Payne furnaces.
-
In Stock
UNIVERSALMAL275 – LIMIT SWITCH
SKU · L275$20.71Furnace high-limit switch from the MAL series. A limit is a safety control: its normally closed contacts open to shut down the heating circuit when plenum temperature climbs past the set point.
-
Low StockUNIVERSAL
DL210 – LIMIT SWITCH
SKU · L210$16.66Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch.
-
In Stock
SUPCOSLS200 – AUTO LIMIT SWITCH (MICRO, L200°)
SKU · MAL200$15.01Supco SLS200 auto reset micro limit switch, opens at 200°F, closes at 160°F. Compact design with angled terminals. Universal fit for furnaces and unit heaters.
-
In Stock
PACKARDMML230 – MANUAL LIMIT SWITCH (MICRO, 230°)
SKU · PRL230$14.97Manual reset micro limit switch, opens at 230°F. Push-button reset after trip. Universal replacement for Supco SRL230 and Packard PRL130. Fits most residential furnaces.
-
Low Stock
UNIVERSALHH18HA504 – LIMIT SWITCH (L220, AUTO, LARGE BASE)
SKU · L220$23.18Automatic-reset limit switch for Carrier, Bryant and Payne furnaces, recorded as a large-base switch with an L220 degree F opening point.
-
In Stock
SUPCOSLS180 – AUTO LIMIT SWITCH (MICRO, L180°)
SKU · MAL180$15.01Supco SLS180 auto reset micro limit switch, opens at 180°F, closes at 140°F. Crosses to Nordyne 626563 and 626614. Universal fit for furnaces and heaters.
-
Low Stock
SOURCE1S1-025-35362-000 – LIMIT SWITCH (3″, L200°, ODD BASE)
SKU · S1-02535362000$89.00York S1-025-35362-000 auto reset limit switch, opens at 200°F, closes at 170°F. 3-inch insertion, odd base. OEM for York furnaces.
-
In Stock
GOODMAN0130F00038S – AUTO LIMIT SWITCH (MICRO, LARGE BASE, L120°)
SKU · L45-224$19.64Goodman/Amana 0130F00038S auto reset limit switch, opens at 120°F. Large base, micro size. Direct OEM replacement — also crosses to B13701-13 and L45-224.
-
Low Stock
CARRIERHH12ZB260 – HIGH LIMIT SWITCH (3″, L260°)
SKU · HH12ZB260$40.34Carrier HH12ZB260 high limit switch, 3-inch insertion, opens at 260°F. Auto reset. Crosses to Trane SWT01261. For Carrier, Trane, and other brand furnaces.
-
In Stock
GOODMANMML300 – MANUAL LIMIT SWITCH (MICRO, L300°)
SKU · PRL300$16.26Manual reset micro rollout limit switch, opens at 300°F. Crosses to Goodman B1370145 and York S1-026-34027-000. Fits Goodman, Amana, and York furnaces.
-
Low Stock
CARRIERHH18HA495 – MANUAL LIMIT SWITCH (MICRO, TEARDROP, L350°, 1177033)
SKU · HH18HA495$22.09Carrier HH18HA495 manual reset limit switch, opens at 350°F. Teardrop mount. Crosses to 1177033. OEM flame rollout switch for Carrier, Bryant, and Payne.
-
Low Stock
SUPCOSHL518 – HIGH TEMPERATURE LIMIT SWITCH (3″, L250°)
SKU · SHL518$35.14Supco SHL518 high limit switch, 3-inch insertion, opens at 250°F, closes at 210°F. Auto reset. Crosses to Carrier HH12ZB250. Universal furnace replacement.
-
In Stock
SUPCOSHL515 – HIGH TEMPERATURE LIMIT SWITCH (3″, L200°)
SKU · SHL515$35.14Supco SHL515 high limit switch, 3-inch insertion, opens at 200°F, closes at 160°F. Auto reset. Crosses to Carrier HH12ZB200. Universal furnace replacement.
-
Low Stock
SUPCOSHL522 – HIGH TEMPERATURE LIMIT SWITCH (7″, L160°)
SKU · SHL522$35.14Supco SHL522 high limit switch, 7-inch insertion, opens at 160°F, closes at 140°F. Auto reset. Crosses to Goodman B1370908/B13709-08. Direct Goodman replacement.
-
In Stock
SUPCOSLS170 – AUTO LIMIT SWITCH (MICRO, L170°)
SKU · MAL170$15.01Supco SLS170 auto reset micro limit switch, opens at 170°F, closes at 130°F. Compact design with angled terminals. Universal fit for furnaces and unit heaters.
-
In Stock
PACKARDMML130 – MANUAL LIMIT SWITCH (MICRO, 130°)
SKU · PRL130$14.97Manual reset micro limit switch, opens at 130°F. Push-button reset after trip. Universal replacement for Supco SRL130 and Packard PRL130. Used in furnaces and heaters.
-
Low Stock
HONEYWELL5D51-90 – FAN & LIMIT CONTROL (8″)
SKU · 5D51-90$163.37Honeywell L4064B2236 fan and limit control with 8-inch element. Adjustable fan differential and fixed high-limit safety cutoff. For older furnaces without electronic controls.
-
Low Stock
RHEEM47-22860-02 – AUTO LIMIT SWITCH WITH ANTICIPATOR (RHEEM, L110°)
SKU · 47-22860-02$28.60Rheem 47-22860-02 auto reset limit switch with built-in anticipator, opens at 110°F. Replaces 47-22860-06. OEM for Rheem and Ruud furnaces.
-
Low Stock
RHEEM47-25349-01K – HIGH TEMPERATURE LIMIT SWITCH (3″, ODD BASE, L160°)
SKU · 47-25349-01K$27.90Rheem 47-25349-01 high limit switch, 3-inch insertion, odd base, opens at 160°F. Auto reset. Kit version (47-25349-01K). OEM for Rheem and Ruud furnaces.
-
In Stock
SUPCOSLS150 – AUTO LIMIT SWITCH (MICRO, L150°)
SKU · MAL150$15.01Supco SLS150 auto reset micro limit switch, opens at 150°F, closes at 110°F. Compact design with angled terminals. Universal fit for furnaces and unit heaters.
-
Low Stock
RHEEM47-22860-01 – AUTO LIMIT SWITCH WITH ANTICIPATOR (RHEEM, L105°)
SKU · 47-22860-01$34.34Rheem 47-22860-01 auto reset limit switch with built-in anticipator, opens at 105°F. OEM for Rheem and Ruud furnaces. Low-temp cutoff for heat pump applications.
-
Low Stock
HONEYWELL5D51-78 – FAN & LIMIT CONTROL (11″)
SKU · 5D51-78$167.57Honeywell L4064B2210 fan and limit control with 11-inch element. Adjustable fan differential and fixed high-limit safety cutoff. For older furnaces without electronic controls.
-
Low Stock
GOODMANB1370905S – HIGH LIMIT SWITCH (3″, L290°)
SKU · 1370905S$41.68High-temperature limit switch for Goodman/Amana furnaces, recorded as a 3 inch style with an L290 degree F opening point.
-
Low StockCARRIER
HH12ZB230 – HIGH LIMIT SWITCH (3″, L230)
SKU · HH12ZB230$35.85High limit switch for Carrier, Bryant and Payne equipment, recorded as a 3 inch style rated L230 degrees F. It provides over-temperature protection by opening the control circuit when the sensing element reaches the set point.
-
In StockUNIVERSAL
DL275 – LIMIT SWITCH
SKU · DL275$16.66Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch.
-
In Stock
CARRIERHH12ZB160 – HIGH LIMIT SWITCH (3″, L160°)
SKU · SWT01257$41.90Carrier HH12ZB160 high limit switch, 3-inch insertion, opens at 160°F. Auto reset. Crosses to Trane SWT01257. For Carrier, Bryant, Payne, and Trane furnaces.
-
In Stock
SUPCOSLS300 – AUTO LIMIT SWITCH (MICRO, L300°)
SKU · MAL300$15.25Supco SLS300 auto reset rollout switch, opens at 300°F, closes at 250°F. Compact micro size with angled terminals. Used as a flame rollout safety switch.
-
In Stock
UNIVERSALDL260 – LIMIT SWITCH
SKU · L260$16.66Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch.
-
In Stock
PACKARDMML240 – MANUAL LIMIT SWITCH (MICRO, 240°)
SKU · PRL240$14.97Manual reset micro limit switch, opens at 240°F. Push-button reset after trip. Universal replacement for Supco SRL240 and Packard PRL240. Fits most furnaces and heaters.
-
In Stock
SUPCOSLS140 – AUTO LIMIT SWITCH (MICRO, L140°)
SKU · MAL140$15.01Supco SLS140 auto reset micro limit switch, opens at 140°F, closes at 100°F. Compact design with angled terminals. Universal fit for furnaces and unit heaters.
-
In Stock
SUPCOSLS160 – AUTO LIMIT SWITCH (MICRO, L160°)
SKU · MAL160$15.01Supco SLS160 auto reset micro limit switch, opens at 160°F, closes at 120°F. Compact design with angled terminals. Universal fit for furnaces and unit heaters.
-
Low Stock
SOURCE1S1-02532606000 – LIMIT SWITCH (3″, ODD BASE, L210°)
SKU · S1-02532606000$45.04York S1-02532606000 high limit switch, 3-inch insertion, odd base, opens at 210°F, closes at 180°F. OEM auto-reset limit for York furnaces.
-
In Stock
UNIVERSALDL240 – LIMIT SWITCH
SKU · L240$16.66Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch.
-
Low Stock
UNIVERSALHH18HA416 – MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L215°)
SKU · L215$27.18Carrier HH18HA416 manual reset limit switch, opens at 215°F. Large base, micro size. OEM replacement for Carrier, Bryant, and Payne furnaces.
Showing 48 of 83 parts
Signs You May Need a New Limit Switch
Limit switches are safety devices inside your furnace that monitor temperature. The high-limit switch shuts off burners if the heat exchanger gets too hot. The fan limit switch controls when the blower turns on and off.
Furnace Shuts Off Before Home Reaches Temperature▼
- The furnace lights and runs but shuts off after a few minutes.
- The high-limit switch may be tripping due to overheating.
- Common causes: dirty filter restricting airflow, failed blower motor, or a faulty switch.
Always check the air filter first. A clogged filter is the #1 reason a high-limit switch trips.
Blower Fan Won't Turn On or Won't Turn Off▼
- The furnace heats but the blower never starts to distribute warm air.
- Or the blower runs continuously and won't shut off after the heating cycle.
- The fan limit switch controls blower timing — when it fails, blower behavior becomes erratic.
Furnace Short-Cycles Repeatedly▼
- The furnace starts, runs for a few minutes, shuts off, then restarts.
- This continuous cycling often means the limit switch is tripping on high temperature.
- If the filter is clean and the blower is working, the limit switch itself may be faulty.
Not sure which part you need? Bring your old part to our Dallas store — our team will test it for free and help you find the right replacement.
📞 (214) 340-9421Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm
📞 (214) 340-9421Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm