What are the specs for this Transformer?

The correct replacement for ICP model WFML070A024A1 — 24V Furnace Control | Ships Today 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 WFML070A024A1 — 24V Furnace Control | Ships Today.

ICP

ICP 40VA Transformer for WFML070A024A1 — 24V Furnace Control | Ships Today

Name: ICP 40VA Transformer for WFML070A024A1 — 24V Furnace Control | Ships Today
Brand: ICP
SKU: 1176944
Price: 37.64 USD
Availability: InStock

SKU: 1176944 Brand: ICP

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Overview

This genuine OEM control transformer (part number 1176944) supplies the 24-volt power that runs the control circuit on your ICP / Heil / Tempstar WFML070A024A1 gas furnace. It steps the incoming line voltage (typically 120V or 240V primary) down to the 24VAC secondary needed by the control board, gas valve, thermostat, and relays. A failed transformer is one of the most common causes of a completely dead furnace: no thermostat display, no blower, no ignition sequence. Transformers fail from age, a shorted low-voltage wire, or a seized component drawing excess current that overheats the windings. Replacing it with the correct 40VA OEM unit restores reliable, code-correct control power.

Specifications

Spec	Value
Part Number	1176944
Type	Control transformer
Brand	ICP / Heil / Tempstar / Comfortmaker
Rating	40 VA
Primary Voltage	120 / 240 VAC
Secondary Voltage	24 VAC
Fit	OEM direct replacement

Compatibility

Built for the ICP WFML070A024A1 furnace and shared across many Heil, Tempstar, Comfortmaker, and Arcoaire gas furnaces using a 40VA control transformer. Verify your primary tap configuration before wiring.

Installation Guide

Safety First — Disconnect power at the switch and breaker, then verify zero voltage at the transformer leads with a multimeter.
Access — Remove the burner/control compartment service panel.
Document — Photograph every primary and secondary wire connection before disconnecting.
Remove — Label and disconnect the leads, then unbolt the transformer from its mounting bracket.
Install — Mount the new transformer, match the primary taps to your line voltage, and reconnect the 24V secondary per your photo.
Test — Restore power and confirm 24VAC at the secondary and a normal thermostat call/ignition sequence.

Signs You Need a Replacement

Furnace is completely dead — no thermostat power or display
No 24VAC measured at the secondary terminals
Visible scorching, swelling, or a burnt smell on the transformer
Repeated blown low-voltage fuses after a short is cleared

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.

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 $75
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 40VA Transformer for WFML070...

$37.64

Frequently Asked Questions

Does this Transformer fit my ICP WFML070A024A1 — 24V Furnace Control | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP WFML070A024A1 — 24V Furnace Control | Ships Today. 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 transformer on my ICP WFML070A024A1 — 24V Furnace Control | Ships Today?

Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Photo wiring connections. Step 3: Disconnect wires from old transformer. Step 4: Remove mounting hardware. Step 5: Install new transformer, reconnect wires matching voltage ratings. Step 6: Verify 24V output with multimeter.

My thermostat has no power. What failed?

Thermostat with no display = failed 24V transformer (or blown control board fuse). Check the 3A/5A fuse on the control board first ($1–$5 fix). If fuse is good but no 24V output from transformer, replace transformer.

Is this transformer 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 transformer?

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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