What are the specs for this Switch?

The correct replacement for ICP model Model 48TM400791 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your ICP equipment which lists the model number Model 48TM400791.

What symptoms indicate I need a new switch?

Common symptoms that indicate you need a new switch include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

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ICP

ICP Temp Switch HH18HA160 for Model 48TM400791

Name: ICP Temp Switch HH18HA160 for Model 48TM400791
Brand: ICP
SKU: ICP-48TM400791-HH18HA160
Price: 54.95 USD
Availability: InStock

SKU: ICP-48TM400791-HH18HA160 Brand: ICP

$54.95

Market price $64.64

SAVE $9.69 (15%) vs market

Genuine ICP OEM part · Guaranteed to fit your unit

✓ Guaranteed to fit 48TM400791 — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

This is the exact ICP part HH18HA160 installed at the factory in the 48TM400791 — not a will-fit substitute. Fitment guaranteed — free returns if it doesn't fit.

Specifications

Open Temp F	160
Close Temp F	120
Reset Type	auto
Function	high-temperature limit switch
Type	SPST
Manufacturer	Carrier
Brand	Carrier/Bryant/Payne
Note	Rated L160-40F on multiple distributor domains: opens at 160F, auto-reset with 40F differential (closes ~120F). Cross-reference equivalents Lennox 20W37 and Trane CNT00921 both published as 'L160-40F, Auto Reset', confirming reset type. Electrical rating listed by one distributor (Mingledorff's) as SPST, 5A @ 240VAC / 10A @ 120VAC, quick-connect terminals.
OEM Part Number	HH18HA160
Brand	ICP
Condition	New — genuine OEM

Symptoms of a failing switch

Watch for: Error codes tracing to this component, the system short-cycles or locks out, performance that degrades under load. Catching it early protects the components around it.

Replacement guide

Kill power before servicing and photograph the wiring and mounting. Swap the part, torque fasteners evenly, and route wires away from hot or moving surfaces. Run a complete cycle and verify normal operation before closing the panel.

FAQ

Is this the exact OEM part for my 48TM400791? Yes — verified factory fitment for that model.

Not sure of your model? Chat with Mike with the number from your unit's nameplate and we'll confirm before you order.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $99
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

ICP Temp Switch HH18HA160 for Mo...

$54.95

Frequently Asked Questions

Does this Switch fit my ICP Model 48TM400791?

Yes. This is the factory-specified OEM switch for the ICP Model 48TM400791. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the switch on my ICP Model 48TM400791?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new switch?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this switch compatible with Bryant or Payne too?

Many ICP parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my ICP switch?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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