What are the specs for this Transformer?

The correct replacement for ICP model WAXT364A2 — 40VA 208/230V 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 WAXT364A2 — 40VA 208/230V to 24V | Ships Today.

ICP

ICP Transformer for WAXT364A2 — 40VA 208/230V to 24V | Ships Today

Name: ICP Transformer for WAXT364A2 — 40VA 208/230V to 24V | Ships Today
Brand: ICP
SKU: 1172028
Price: 32.44 USD
Availability: InStock

SKU: 1172028 Brand: ICP

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Overview

This OEM ICP transformer (part number 1172028) is a 40VA step-down control transformer with a 208/230-volt primary and a 24-volt secondary. It supplies the low-voltage power that runs your thermostat, contactor coil, control board, and safety circuits. When a transformer fails, the entire 24V control circuit goes dead: the thermostat screen goes blank, the contactor never pulls in, and the system will not start at all. A buzzing transformer, a blown low-voltage fuse, or a burnt-smelling control box are classic signs this part has shorted internally and needs replacement.

Specifications

Spec	Value
Part Number	1172028
Type	Step-Down Control Transformer
Brand	ICP (Tempstar / Heil)
Rating	40 VA
Primary Voltage	208/230V
Secondary Voltage	24V
Fitment	OEM Direct Replacement

Compatibility

This transformer is the factory-specified low-voltage power supply for the ICP / Tempstar / Heil WAXT364A2 system and many other ICP-family condensing units and air handlers using a 208/230V to 24V control circuit. Always confirm the printed part number 1172028 against your existing transformer before installing.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter before touching any wiring.
Access — Remove the service panel to reach the control box.
Document — Photograph all primary and secondary wire connections before disconnecting.
Remove — Disconnect the line-voltage primary leads and the 24V secondary leads, then unbolt the failed transformer from its bracket.
Install — Mount the new 1172028 transformer, reconnect the 208/230V primary and 24V secondary per your photo.
Test — Restore power and verify 24V across the secondary terminals, then confirm the thermostat and contactor energize.

Signs You Need a Replacement

No power to the thermostat or a blank thermostat display.
System will not start and the contactor never pulls in.
Repeatedly blown low-voltage fuse or tripped control circuit.
Buzzing, humming, or a burnt smell from the control box.

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 Transformer for WAXT364A2 — ...

$32.44

Frequently Asked Questions

Does this Transformer fit my ICP WAXT364A2 — 40VA 208/230V to 24V | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP WAXT364A2 — 40VA 208/230V 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 WAXT364A2 — 40VA 208/230V 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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