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Description
L210-20F Furnace Primary Limit Switch (-40°F to 180°F) - For ICP Heil Tempstar FurnacesL210 20F Primary Furnace Limit Switch Key Features Critical safety switch designed to shut down the gas valve and burner circuit if the furnace heat exchanger exceeds maximum safe operating temperatures. Thermal setting calibrated to automatically open the circuit on temperature rise at 210F and close (reset) at 190F. Constructed with a highly responsive bimetallic disc enclosed in a temperature resistant phenolic housing to prevent heat distortion.
L210-20F Primary Furnace Limit Switch
Key Features
- Critical safety switch designed to shut down the gas valve and burner circuit if the furnace heat exchanger exceeds maximum safe operating temperatures.
- Thermal setting calibrated to automatically open the circuit on temperature rise at 210°F and close (reset) at 190°F.
- Constructed with a highly responsive bimetallic disc enclosed in a temperature-resistant phenolic housing to prevent heat distortion.
- Features a flush-mount bracket and standard 1/4-inch male quick-connect spade terminals for immediate electrical integration.
Replaces / Cross-Reference Part Numbers
- L210-20F
- 34335001
- 34335-001
- HQ34335001TD
- 313408
- 338085-758
- 47-25349-06
Compatibility & Fitment
- Compatible with select residential gas furnaces manufactured by International Comfort Products (ICP), Heil, and Tempstar.
- Fits specific furnace models including: GDE050B12A2, GDE050B12G1, and GDE075F16A3.
When to Replace
- The furnace continuously short-cycles, shutting off the burner assembly well before reaching the target thermostat temperature.
- The furnace blower fan runs non-stop blowing cold air, indicating the system is locked out due to an open limit circuit.
- The main control board diagnostic LED continuously flashes an error code specifically for an open high-limit switch.
- A continuity test performed with a digital multimeter displays infinite resistance (an open circuit) while the switch is resting at room temperature.
Installation Tips
- Turn off the main electrical breaker to the furnace and ensure the unit is completely powered down before opening the service panels.
- Take a digital photograph of the existing wire connections to ensure the leads are routed back to the correct spade terminals.
- Remove the two hex screws securing the original switch to the heat exchanger bulkhead and carefully pull the component straight out.
- Align the new limit switch flush against the mounting surface and tighten the screws down evenly to prevent bending the mounting plate.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Nice accent to my bathroom by my sink
Size: 5.9"D, Color: Ebony Black + Rustic Brown, Size: 5.9"D, Color: Ebony Black + Rustic Brown
Great product, very sturdy, easy assembly, rich looking, glides easily, would buy again.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Functional and cute rolling cart.
Size: 7.9"D, Color: Rustic White + Honey Brown, Size: 7.9"D, Color: Rustic White + Honey Brown
This fit perfectly right where I needed it and adds storage as well!!! It rolls right out when I need it to! It could not be more perfectly suited to this space!!
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Reviewed in the United States on April 8, 2026
★★★★★ 1
Shelf snapped during assembly; had to fight for refund with seller
Size: 5.9"D, Color: Rustic White + Honey Brown
I was really excited to get this cart for my kitchen because it looks nice and would fit really well between my fridge and my oven. However, when assembling the final shelf, it snapped and broke and became unusable. I reached out to the seller to see if they could offer replacement pieces and they told me no, offering a 40% refund or exchange instead. Like I said, I was literally on the final step of assembly with the shelf snapped, so I can’t take it apart and put it back in the box properly to ship back and 40% is NOT enough if I have to re-purchase the item. The last offer the seller made was for a 50% refund which is another terrible offer. So now I have a half-broken unit that I don’t know what to do with. Super disappointed. If you’re assembling this piece, make sure all your shelves fit properly! And if you have problems, don’t expect the seller to help you.
EDIT: The seller finally sent a 100% refund after emailing back and forth for several days. I did not have a good experience with this seller, so I will be donating the cart as-is and not be repurchasing.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Great quality & easy to assemble!
Size: 7.9"D, Color: Ebony Black + Rustic Brown
Very impressed with the quality of this product. The wood is nice quality, instructions are easy to read and the item was easy to assemble. They even provided all of the necessary tools, including a screwdriver to assemble it. Looks great in my newly finished laundry room.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Great design for a kitchen sink organizer -- will not tip or accumulate water
We've had an Oxo kitchen sink organizer for years, and it's been fine, except 1) tall brushes (for example, Oxo brushes) make it tippy, stray elbows or imperfect placement of the brush would knock it into the sink and 2) it built up a soapy sludge in the bottom that that had to be drained and wiped down constantly. This item solves both issues perfectly.
Likes:
Size - I think it's about 5 inches deep, which is just right to fit the strip of countertop that runs behind the sink, up against the backsplash
Weight - The drying stone in the bottom gives the baskets some real heft, so there is no tipping it over by bumping a brush handle -- it really stays put
Drying stone -- The diatomaceous drying stone that slides into the bottom of the main basket is a great idea. These are porous stones that will absorb water and then allow it to evaporate fairly quickly. So far, it seems to be doing its job well. I'm sure the stone will need a wipe down now and then to stay clean, but no puddles of sludgy soapy water in the bottom is a big plus
Overall Design/Build quality -- The unit seems solid. It's a simple design, but there are no sharp edges or unfinished bits. Once in place it doesn't wobble a bit. I wasn't sure about the black powder-coated finish, but installed it looks clean and it's unobtrusive. I appreciate that the smaller basket for tall brushes sits on hooks and can be hung inside or outside the main basket. Ours sits inside, but there's plenty of room left over for sponges . And there's still room to stand up a bottle of liquid detergent or counter-top spray.
NOT SO LIKES
Nothing so far. I notice a lot of this style of sink organizer on Amazon, so presumably they're selling well. It's a great improvement over the older kinds.
Five big, clean, well-organized stars. Highly recommended.
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Reviewed in the United States on December 6, 2025