What are the specs for this Transformer?

The correct replacement for ICP model WFEL090C048A1 — 120-24V 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 WFEL090C048A1 — 120-24V OEM 1177217 | Ships Today.

ICP

ICP 40VA Transformer for WFEL090C048A1 — 120-24V OEM 1177217 | Ships Today

Name: ICP 40VA Transformer for WFEL090C048A1 — 120-24V OEM 1177217 | Ships Today
Brand: ICP
SKU: 1177217-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1177217-GEN Brand: ICP

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Overview

This ICP 40VA transformer (OEM part #1177217) steps line voltage down from 120V to 24V to power the low-voltage control circuit of your ICP/Heil/Tempstar WFEL090C048A1 furnace. The 24V output feeds the control board, thermostat, gas valve, and relays. When the transformer fails — usually from a shorted secondary or an overload that opens the windings — the thermostat goes dark, the furnace will not respond to a heat call, and no 24V is present at the board. A blown transformer is a frequent culprit behind a completely dead control system.

Specifications

Spec	Value
Part Number	1177217
Type	Step-down control transformer
Brand	ICP (Heil / Tempstar)
Rating	40 VA
Voltage	120V primary / 24V secondary
Fit	OEM direct replacement

Compatibility

Direct-fit replacement for the ICP, Heil, and Tempstar WFEL090C048A1 furnace and other ICP-family units using a 40VA 120-24V control transformer. Confirm your existing part is marked 1177217 before ordering.

Installation Guide

Safety First — Disconnect power at the breaker and furnace switch, then verify zero voltage with a multimeter.
Access — Remove the control compartment service panel.
Document — Photograph the primary (line) and secondary (24V) wire connections before disconnecting.
Remove — Disconnect the leads, unbolt the transformer from its mounting bracket, and remove it.
Install — Mount the new 1177217 transformer and reconnect the primary and secondary leads exactly per your photo.
Test — Restore power and confirm 24V at the secondary and a normal heat cycle.

Signs You Need a Replacement

Thermostat display is blank or dead
Furnace does not respond to any heat call
No 24V measured at the control board or gas valve
Transformer is hot, buzzing, or smells burnt

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 WFEL090...

$32.00

Frequently Asked Questions

Does this Transformer fit my ICP WFEL090C048A1 — 120-24V OEM 1177217 | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP WFEL090C048A1 — 120-24V 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 WFEL090C048A1 — 120-24V 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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