What are the specs for this Transformer?

The correct replacement for Tempstar model TNE075F14G1 — 115V to 24V 40VA | 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 Tempstar equipment which lists the model number TNE075F14G1 — 115V to 24V 40VA | Ships Today.

Is this transformer compatible with Bryant or Payne systems too?

Many Tempstar parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Tempstar

Tempstar Transformer for TNE075F14G1 — 115V to 24V 40VA | Ships Today

Name: Tempstar Transformer for TNE075F14G1 — 115V to 24V 40VA | Ships Today
Brand: Tempstar
SKU: 1012722-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1012722-GEN Brand: Tempstar

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Overview

This OEM control transformer (part number 1012722) steps down 115-volt line power to the 24-volt control voltage required by your Tempstar TNE075F14G1 gas furnace. Rated at 40VA, it powers the thermostat, gas valve, control board, and relays. A failed transformer is one of the most common causes of a completely dead furnace: no thermostat display, no blower, and no ignition. Transformers fail from voltage spikes, shorted control wiring, or a seized gas-valve solenoid drawing excess current. Replacing this exact-fit OEM transformer restores reliable 24V control power without guesswork on terminal layout or mounting.

Specifications

Spec	Value
Part Number	1012722
Type	Control Transformer
Brand	Tempstar (ICP / Heil family)
Primary Voltage	115V
Secondary Voltage	24V
Rating	40VA
Description	TRANS 115>24 40VA

Compatibility

Direct OEM replacement for the Tempstar TNE075F14G1 furnace. The 115-to-24V 40VA transformer is also used across many ICP, Heil, Comfortmaker, and Tempstar furnace platforms sharing the same control package. Verify the original part number 1012722 against your 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/blower access panel.
Document — Photograph every primary and secondary wire connection before disconnecting.
Remove — Disconnect the line-voltage primary leads and the 24V secondary leads, then unbolt the transformer from its mounting bracket.
Install — Mount the new transformer, reconnect primary and secondary leads exactly per your photo, and confirm the line-voltage taps match.
Test — Restore power and confirm 24V across the secondary terminals and normal furnace startup.

Signs You Need a Replacement

Completely dead furnace with a blank thermostat
Blown low-voltage fuse on the control board
No 24V measured across the secondary terminals
Burnt smell or visibly scorched transformer windings

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

Tempstar Transformer for TNE075F...

$32.00

Frequently Asked Questions

Does this Transformer fit my Tempstar TNE075F14G1 — 115V to 24V 40VA | Ships Today?

Yes. This is the factory-specified OEM transformer for the Tempstar TNE075F14G1 — 115V to 24V 40VA | 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 Tempstar TNE075F14G1 — 115V to 24V 40VA | 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 Tempstar 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 Tempstar 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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