What are the specs for this Transformer?

The correct replacement for ICP model X8MPN075B12A2 — 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 X8MPN075B12A2 — 115V to 24V | Ships Today.

ICP

ICP 40VA Transformer for X8MPN075B12A2 — 115V to 24V | Ships Today

Name: ICP 40VA Transformer for X8MPN075B12A2 — 115V to 24V | Ships Today
Brand: ICP
SKU: X8MPN075B12A2
Price: 44.20 USD
Availability: InStock

SKU: X8MPN075B12A2 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM 40VA control transformer (OEM #1012722) steps 115V line voltage down to the 24V control voltage that powers the thermostat, gas valve, control board, and relays in the ICP / Heil / Tempstar X8MPN075B12A2 furnace. The transformer is the heart of the low-voltage control circuit — when it fails, the entire 24V system goes dead: no thermostat display, no blower or heat call response, and no ignition sequence. A 40VA rating provides ample capacity for the furnace's control load. This is the genuine OEM step-down transformer matched to your furnace's primary and secondary voltages.

Specifications

Spec	Value
Part Number	1012722 (Trans 115>24 40VA)
Type	Step-Down Control Transformer
Brand	ICP / Heil / Tempstar
Primary Voltage	115V
Secondary Voltage	24V
Rating	40VA
Fit	OEM Direct Replacement

Compatibility

Engineered for the ICP/Heil/Tempstar X8MPN075B12A2 furnace and related X8MPN075 platform units running a 115V primary, 24V secondary control circuit. Verify your existing transformer is a 40VA 115V-to-24V unit before ordering. Primary and secondary leads match the OEM harness for a plug-and-go swap.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker. Verify zero voltage with a multimeter on both line and control terminals.
Access — Remove the control compartment service panel.
Document — Photograph all primary (115V) and secondary (24V) lead connections before disconnecting.
Remove — Disconnect the transformer leads, unscrew its mounting bracket, and lift the old transformer out.
Install — Mount the new transformer, reconnect primary to line voltage and secondary to the 24V control circuit per your photos, and confirm no leads are pinched.
Test — Restore power and verify 24V across the secondary terminals; confirm the thermostat powers up and the heat cycle starts.

Signs You Need a Replacement

No 24V at the control board — blank thermostat and no system response.
Furnace completely dead despite line voltage being present.
Burning smell or visibly scorched transformer windings.
Blown low-voltage fuse that re-blows after a short in the 24V circuit.

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 X8MPN07...

$44.20

Frequently Asked Questions

Does this Transformer fit my ICP X8MPN075B12A2 — 115V to 24V | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP X8MPN075B12A2 — 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 X8MPN075B12A2 — 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.

Menu