What are the specs for this Transformer?

The correct replacement for Tempstar model TCK100J16A1 — 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 Tempstar equipment which lists the model number TCK100J16A1 — 115V to 24V | 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 40VA Transformer for TCK100J16A1 — 115V to 24V | Ships Today

Name: Tempstar 40VA Transformer for TCK100J16A1 — 115V to 24V | Ships Today
Brand: Tempstar
SKU: 1011626-GEN
Price: 29.95 USD
Availability: InStock

SKU: 1011626-GEN Brand: Tempstar

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Overview

This OEM control transformer — part number 1011626 (TRANS 115>24 40VA S) — steps the 115V line voltage down to the 24V control voltage used by the Tempstar TCK100J16A1 furnace. The 24V secondary powers the control board, thermostat, gas valve, and relays. Rated at 40VA, it supplies enough current to operate the full low-voltage control circuit. When a transformer fails — often from a low-voltage short or age — the entire control system goes dead: no thermostat display, no blower, and no ignition sequence. A blown transformer is one of the most common no-power furnace faults.

Specifications

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

Compatibility

Direct OEM fit for the Tempstar TCK100J16A1 furnace and other ICP/Heil/Comfortmaker units using the 1011626 40VA 115-24V transformer. Confirm primary voltage and mounting before ordering.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter.
Access — Remove the furnace control access panel.
Document — Photograph all primary (line) and secondary (24V) wires before disconnecting.
Remove — Label and disconnect the leads, then remove the transformer mounting screws.
Install — Mount the new transformer and reconnect the primary and secondary leads exactly per your photo.
Test — Restore power and confirm 24V at the secondary, then run a full heat cycle.

Signs You Need a Replacement

No power to the thermostat or control board
Furnace completely unresponsive on a call for heat
Repeatedly blown low-voltage fuse on the board
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 40VA Transformer for TC...

$29.95

Frequently Asked Questions

Does this Transformer fit my Tempstar TCK100J16A1 — 115V to 24V | Ships Today?

Yes. This is the factory-specified OEM transformer for the Tempstar TCK100J16A1 — 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 Tempstar TCK100J16A1 — 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 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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