What are the specs for this Transformer?

The correct replacement for ICP model WFAR080B048A1 — OEM 1177217 | 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 WFAR080B048A1 — OEM 1177217 | Ships Today.

ICP

ICP Transformer 40VA 120/24V for WFAR080B048A1 — OEM 1177217 | Ships Today

Name: ICP Transformer 40VA 120/24V for WFAR080B048A1 — OEM 1177217 | Ships Today
Brand: ICP
SKU: 1177217
Price: 38.94 USD
Availability: InStock

SKU: 1177217 Brand: ICP

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Overview

This OEM ICP transformer (part number 1177217) steps line voltage down to the 24V control voltage your furnace or air handler needs to power thermostats, relays, gas valves, and contactors. Rated at 40VA with a 120V primary and 24V secondary, it is the exact factory component used in the ICP / Tempstar / Heil WFAR080B048A1 system. A failed transformer is one of the most common causes of a completely dead control circuit: the blower, igniter, and thermostat all go silent because none of them receive 24V. Symptoms include a blank or unresponsive thermostat, a unit that will not start on any call for heat or cool, repeatedly blown low-voltage fuses, or a burnt smell near the control board.

Specifications

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

Compatibility

Direct OEM fit for the ICP / Tempstar / Heil WFAR080B048A1 gas furnace. This 40VA 120/24V transformer is also used across many ICP-family models that share the same control platform. Verify your existing transformer is rated 120V primary / 24V secondary at 40VA before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter before touching any wiring.
Access — Remove the furnace control/blower compartment service panel.
Document — Photograph every wire on the existing transformer before disconnecting anything.
Remove — Label and disconnect the primary (120V) and secondary (24V) leads, then unbolt the transformer from its mounting bracket.
Install — Mount the new transformer, reconnect the primary and secondary leads exactly per your photo, and confirm all crimps are tight.
Test — Restore power and verify 24V across the secondary terminals and normal startup on a call for heat.

Signs You Need a Replacement

Thermostat is blank or completely unresponsive
Unit will not start on any heating or cooling call
Low-voltage (3A) fuse blows repeatedly
No 24V reading across the secondary terminals
Visible scorching or a burnt smell at the transformer

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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 Transformer 40VA 120/24V for...

$38.94

Frequently Asked Questions

Does this Transformer fit my ICP WFAR080B048A1 — OEM 1177217 | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP WFAR080B048A1 — OEM 1177217 | 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 WFAR080B048A1 — OEM 1177217 | 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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