What are the specs for this Transformer?

The correct replacement for ICP model YK048GC2 — Reversing Valve Coil & Relay Kit | 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 YK048GC2 — Reversing Valve Coil & Relay Kit | Ships Today.

ICP

ICP 24V 40VA Transformer for YK048GC2 — Reversing Valve Coil & Relay Kit | Ships Today

Name: ICP 24V 40VA Transformer for YK048GC2 — Reversing Valve Coil & Relay Kit | Ships Today
Brand: ICP
SKU: 34329055-GEN
Price: 24.95 USD
Availability: InStock

SKU: 34329055-GEN Brand: ICP

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Overview

This OEM 24-volt control package for the ICP / Heil / Tempstar YK048GC2 heat pump includes the reversing valve coil (PN 34329055) and the 24V control relays (PN 96467 and PN 1053004). These low-voltage components carry the 24VAC signal produced by the unit's 40VA transformer to switch the reversing valve and energize the contactor and defrost circuits. When the transformer or its 24V control loop fails, the system loses the ability to switch between heating and cooling, the contactor will not pull in, and the outdoor unit appears completely dead even though line voltage is present. Replacing these components with genuine OEM parts restores reliable 24V control and proper heat-pump changeover.

Specifications

Spec	Value
Part Numbers	34329055, 96467, 1053004
Type	24V Reversing Valve Coil & Control Relays
Brand	ICP / Heil / Tempstar
Control Voltage	24 VAC
Transformer Rating	40 VA
Fitment	OEM

Compatibility

Engineered for the ICP / Heil / Tempstar YK048GC2 heat pump and the broader YK048G family of 4-ton split-system heat pumps that share the same 24V control architecture. Always confirm the part numbers stamped on your existing coil and relays before ordering.

Installation Guide

Safety First — Disconnect power at the breaker and the unit disconnect, then verify zero voltage with a multimeter.
Access — Remove the outdoor unit's control-panel service cover.
Document — Photograph all low-voltage wiring before disconnecting anything.
Remove — Unplug the reversing valve coil from the valve stem and lift out the failed 24V relays from their mounting clips, noting terminal positions.
Install — Seat the new coil fully on the valve, mount the replacement relays, and reconnect every 24V lead exactly per your photo.
Test — Restore power, run a heat and a cool call, and confirm the reversing valve shifts and the relays click in.

Signs You Need a Replacement

Heat pump runs in only one mode (stuck in heat or stuck in cool).
Outdoor contactor never energizes despite a thermostat call.
No 24VAC measured at the control terminals.
Buzzing, chattering, or overheated control relay.

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 24V 40VA Transformer for YK0...

$24.95

Frequently Asked Questions

Does this Transformer fit my ICP YK048GC2 — Reversing Valve Coil & Relay Kit | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP YK048GC2 — Reversing Valve Coil & Relay Kit | 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 YK048GC2 — Reversing Valve Coil & Relay Kit | 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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