What are the specs for this Transformer?

The correct replacement for ICP model VNK050F12A1 — 115V 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 VNK050F12A1 — 115V to 24V | Ships Today.

ICP

ICP 40VA Transformer for VNK050F12A1 — 115V to 24V | Ships Today

Name: ICP 40VA Transformer for VNK050F12A1 — 115V to 24V | Ships Today
Brand: ICP
SKU: 1011626-GEN
Price: 28.95 USD
Availability: InStock

SKU: 1011626-GEN Brand: ICP

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Overview

This OEM transformer (part number 1011626) steps down 115-volt line voltage to the 24-volt control voltage required by your ICP VNK050F12A1 furnace control board, thermostat, gas valve, and igniter circuit. Rated at 40VA, it supplies stable low-voltage power to the entire control system. When a transformer fails, the furnace loses all 24V control power: the thermostat goes blank, the control board will not energize, and the system fails to start any heat call. Common causes of failure include a shorted secondary, a blown internal fuse link from a wiring short, or overheating from an overloaded control circuit.

Specifications

Spec	Value
Part Number	1011626
Type	Step-Down Control Transformer
Brand	ICP (Tempstar / Heil)
Primary Voltage	115V
Secondary Voltage	24V
Rating	40VA
Fitment	OEM Direct Replacement

Compatibility

Directly fits the ICP / Tempstar / Heil VNK050F12A1 gas furnace. This 115V-to-24V 40VA transformer is also used across many ICP-family furnace and air handler control platforms that call for OEM part 1011626. Always verify your existing transformer's primary and secondary voltage and VA rating against this unit before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
Access — Remove the furnace blower-compartment service panel.
Document — Photograph all primary and secondary wire connections before disconnecting anything.
Remove — Disconnect the 115V primary leads and 24V secondary leads, then unbolt the failed transformer from the control panel.
Install — Mount the new transformer, then reconnect the primary and secondary wiring exactly per your photo.
Test — Restore power, confirm 24V at the secondary with a multimeter, and verify the furnace responds to a heat call.

Signs You Need a Replacement

Blank or dead thermostat with no 24V control power.
Furnace control board completely unresponsive to a heat call.
Measured 0V or low voltage at the transformer secondary terminals.
Repeatedly blown low-voltage fuse or a burnt-smelling, discolored transformer.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. 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 VNK050F...

$28.95

Frequently Asked Questions

Does this Transformer fit my ICP VNK050F12A1 — 115V to 24V | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP VNK050F12A1 — 115V 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 VNK050F12A1 — 115V 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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