What are the specs for this Transformer?

The correct replacement for ICP model X8MPN075B12A3 — 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 X8MPN075B12A3 — 115V to 24V | Ships Today.

ICP

ICP 40VA Transformer for X8MPN075B12A3 — 115V to 24V | Ships Today

Name: ICP 40VA Transformer for X8MPN075B12A3 — 115V to 24V | Ships Today
Brand: ICP
SKU: X8MPN075B12A3
Price: 31.20 USD
Availability: InStock

SKU: X8MPN075B12A3 Brand: ICP

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Overview

This is the genuine OEM control transformer (part number 1012722) for the ICP Tempstar Heil X8MPN075B12A3 gas furnace. The transformer converts incoming 115V line voltage to the 24V control voltage that powers the thermostat, ignition control, gas valve, and circuit board. If it fails, the furnace's entire low-voltage system goes dead and the unit will not respond to a thermostat call even with full line power present. Rated at 40VA, this transformer supplies ample power for the furnace control loads and a typical thermostat, and is the exact factory-spec replacement for the X8MPN075 platform.

Specifications

Spec	Value
Part Number	1012722
Type	Control Transformer
Brand	ICP / Tempstar / Heil
Primary Voltage	115V
Secondary Voltage	24V
Power Rating	40VA
Application	Furnace low-voltage control circuit

Compatibility

Designed for the ICP Tempstar Heil X8MPN075B12A3 and other N-series furnaces sharing the same 40VA 115/24V control transformer. Verify primary voltage, secondary voltage, and VA rating against your existing 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 control-compartment service panel.
Document — Photograph the primary and secondary wiring before disconnecting.
Remove — Disconnect the line and low-voltage leads, then unbolt the old transformer from its bracket.
Install — Mount the new transformer and reconnect 115V to the primary and 24V to the secondary exactly per your photo.
Test — Restore power and confirm 24V at the secondary terminals and a normal thermostat call.

Signs You Need a Replacement

Furnace does not respond to any thermostat call
No 24V present at the control board or gas valve
Low-voltage fuse blows repeatedly
Burnt odor or discoloration on the transformer housing

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...

$31.20

Frequently Asked Questions

Does this Transformer fit my ICP X8MPN075B12A3 — 115V to 24V | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP X8MPN075B12A3 — 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 X8MPN075B12A3 — 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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