What are the specs for this Transformer?

The correct replacement for ICP model WUGF080AF01 — 120V to 24V | 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 WUGF080AF01 — 120V to 24V | Ships Today.

ICP

ICP 40VA Transformer for WUGF080AF01 — 120V to 24V | Ships Today

Name: ICP 40VA Transformer for WUGF080AF01 — 120V to 24V | Ships Today
Brand: ICP
SKU: 92840-GEN
Price: 28.95 USD
Availability: InStock

SKU: 92840-GEN Brand: ICP

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Overview

This is a genuine OEM 40VA control transformer assembly (part number 97298, "TRANS RELAY RECEP 120>24 40VA," supplied with the matching 92840 24V SPDT relay) for the ICP / Tempstar / Heil WUGF080AF01 gas furnace. The transformer steps the 120V line voltage down to the 24V low-voltage control power that runs the thermostat, gas valve, igniter circuit, and relays. Without a working transformer the entire low-voltage control side of the furnace is dead — the thermostat will not call, the gas valve will not open, and the system will not run. Typical failure symptoms are a completely unresponsive thermostat, no 24V at the control board, a blown low-voltage fuse, or a transformer that buzzes, overheats, or shows scorching. Transformers commonly fail from a shorted thermostat wire, a shorted gas valve, or simple age-related winding breakdown.

Specifications

Spec	Value
Part Numbers	97298 (transformer/receptacle), 92840 (24V SPDT relay)
Type	Control Transformer, 120/24V
Brand	ICP / Tempstar / Heil / Comfortmaker
Rating	40 VA
Primary Voltage	120V
Secondary Voltage	24V
Fitment	OEM Direct Replacement

Compatibility

Directly fits the ICP / Tempstar / Heil WUGF080AF01 upflow gas furnace and related ICP-family furnaces using the 97298 transformer and 92840 relay. Verify your VA rating, primary/secondary voltages, and mounting/receptacle style before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker and verify zero voltage with a multimeter.
Access — Remove the furnace control-compartment service panel.
Document — Photograph all primary (line) and secondary (24V) leads and relay connections before disconnecting.
Remove — Disconnect the transformer leads and relay, then remove the mounting screws or unplug the receptacle.
Install — Mount the new transformer/relay assembly and reconnect every wire exactly per your photo, keeping primary and secondary leads separate.
Test — Restore power and confirm 24V at the secondary and normal thermostat, gas valve, and relay operation.

Signs You Need a Replacement

Thermostat is blank or unresponsive with line power present.
No 24V reading at the control board or gas valve.
Repeatedly blown low-voltage fuse, or a buzzing/overheating transformer.
Visible scorching, melted housing, or burnt smell at the transformer.

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 WUGF080...

$28.95

Frequently Asked Questions

Does this Transformer fit my ICP WUGF080AF01 — 120V to 24V | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP WUGF080AF01 — 120V to 24V | 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 WUGF080AF01 — 120V to 24V | 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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