What are the specs for this Transformer?

The correct replacement for ICP model WPA3424000RKC1 — 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 WPA3424000RKC1 — 208/230V to 24V | Ships Today.

ICP

ICP 40VA Transformer for WPA3424000RKC1 — 208/230V to 24V | Ships Today

Name: ICP 40VA Transformer for WPA3424000RKC1 — 208/230V to 24V | Ships Today
Brand: ICP
SKU: 1176148
Price: 41.60 USD
Availability: InStock

SKU: 1176148 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM transformer assembly is the low-voltage power supply for the ICP / Tempstar / Heil WPA3424000RKC1 heat pump. It steps the incoming 208/230V line down to the 24V control signal that operates the contactor coil, reversing valve, defrost board, and thermostat circuit. Rated at 40VA, it includes OEM part 1173691 (TRANS 208/230>24 40VA) and the matching 1176148 terminal barrier (BARRIER 24V 42-60) that protects the low-voltage terminals. When a transformer fails the entire control circuit goes dead — the unit will not energize the contactor, the air handler stays off, and the thermostat display may go blank. A buzzing transformer, a tripped low-voltage fuse, or scorched secondary terminals are all signs of a failing unit.

Specifications

Spec	Value
OEM Part Numbers	1173691, 1176148
Type	Step-down control transformer
Brand	ICP / Tempstar / Heil
Primary Voltage	208/230V
Secondary Voltage	24V
Rating	40VA
Included	24V terminal barrier (42-60)

Compatibility

Engineered as a direct-fit replacement for the ICP / Tempstar / Heil / Comfortmaker WPA3424000RKC1 condenser. The 208/230V-to-24V, 40VA rating is also common across many ICP-family split-system heat pumps and condensing units of the same era.

Installation Guide

Safety First — Disconnect power at the breaker and the outdoor disconnect, then verify zero voltage with a multimeter on both primary leads.
Access — Remove the control-panel service cover on the condenser.
Document — Photograph every primary and secondary wire before disconnecting.
Remove — Label and disconnect the 24V secondary and 208/230V primary leads, then unbolt the old transformer and barrier from the bracket.
Install — Mount the new transformer and terminal barrier, then reconnect all leads exactly per your photo.
Test — Restore power and confirm 24V across the secondary terminals and proper contactor pull-in.

Signs You Need a Replacement

No 24V at the secondary — system completely unresponsive
Repeatedly blown low-voltage fuse
Loud buzzing or humming from the transformer
Scorched, melted, or discolored secondary terminals

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 WPA3424...

$41.60

Frequently Asked Questions

Does this Transformer fit my ICP WPA3424000RKC1 — 208/230V to 24V | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP WPA3424000RKC1 — 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 WPA3424000RKC1 — 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.

Menu