What are the specs for this Transformer?

The correct replacement for ICP model WFHR120D060A1 — 120V-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 WFHR120D060A1 — 120V-24V Furnace Control | Ships Today.

ICP

ICP 40VA Transformer for WFHR120D060A1 — 120V-24V Furnace Control | Ships Today

Name: ICP 40VA Transformer for WFHR120D060A1 — 120V-24V Furnace Control | Ships Today
Brand: ICP
SKU: 1177217-GEN
Price: 28.95 USD
Availability: InStock

SKU: 1177217-GEN Brand: ICP

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Overview

This genuine OEM 40VA control transformer (part #1177217) steps down 120V line voltage to the 24V low-voltage power required by the control board, gas valve, igniter circuit, and thermostat on your ICP Tempstar/Heil WFHR120D060A1 furnace. The transformer is the heart of the 24V control circuit — when it fails, the entire control system goes dead. Common failure symptoms include a completely unresponsive thermostat, no furnace operation despite line power being present, a buzzing or humming transformer, visible scorching on the windings, or a blown low-voltage fuse caused by an internal short. Rated at 40VA, this unit supplies ample current for the full control load.

Specifications

Spec	Value
Part Number	1177217
Type	Step-Down Control Transformer
Brand	ICP (Tempstar / Heil)
Rating	40 VA
Primary Voltage	120V
Secondary Voltage	24V
Fitment	OEM Direct Replacement

Compatibility

Direct-fit replacement for the ICP Tempstar Heil WFHR120D060A1 furnace and other ICP-family gas furnaces using a 40VA 120-24V control transformer. Always confirm your existing transformer's VA rating and primary/secondary voltages before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
Access — Remove the furnace control/blower service panel.
Document — Photograph all primary and secondary wire connections before disconnecting.
Remove — Disconnect the line-voltage and 24V leads, unscrew the transformer mounting bracket, and lift the old unit out.
Install — Mount the new transformer, reconnect the primary (120V) and secondary (24V) leads exactly per your photo.
Test — Restore power and confirm 24V across the secondary terminals and normal furnace operation.

Signs You Need a Replacement

Thermostat is completely dead with no display or call response
Furnace will not start even though 120V line power is present
Audible buzzing or humming from the transformer
Repeatedly blown low-voltage control fuse
Burnt smell or visible scorching on the transformer body

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 WFHR120...

$28.95

Frequently Asked Questions

Does this Transformer fit my ICP WFHR120D060A1 — 120V-24V Furnace Control | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP WFHR120D060A1 — 120V-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 WFHR120D060A1 — 120V-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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