What are the specs for this Transformer?

The correct replacement for ICP model SUP10M2301CIA — Low Voltage | 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 SUP10M2301CIA — Low Voltage | Ships Today.

ICP

ICP 24VAC Control Relay for SUP10M2301CIA — Low Voltage | Ships Today

Name: ICP 24VAC Control Relay for SUP10M2301CIA — Low Voltage | Ships Today
Brand: ICP
SKU: L01H009
Price: 29.84 USD
Availability: InStock

SKU: L01H009 Brand: ICP

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Overview

This is the OEM 24VAC control relay (part L01H009, AG90-23242-024W) used in the low-voltage control circuit of the ICP / Tempstar / Heil SUP10M2301CIA. It is energized by the 24V transformer secondary and switches the higher-current loads — such as the blower or an auxiliary contactor — on command from the control board. This part is supplied in the transformer / low-voltage control category because it lives on the same 24V circuit. When the relay coil opens or the contacts pit and weld, the furnace may fail to start, fail to switch the blower, or run continuously even after the call for heat ends.

Specifications

Spec	Value
Part Number	L01H009 (AG90-23242-024W)
Type	24VAC Control Relay
Brand	ICP / Tempstar / Heil
Coil Voltage	24 VAC
Circuit	Low-voltage control

Compatibility

Designed for the ICP / Tempstar / Heil SUP10M2301CIA and related models using the AG90-23242-024W 24VAC relay. Verify the coil voltage and contact configuration against your failed relay before installing.

Installation Guide

Safety First — Disconnect power at the switch and breaker, then verify zero voltage at the relay terminals with a multimeter.
Access — Remove the furnace control compartment panel.
Document — Photograph every wire on the relay before disconnecting.
Remove — Label and disconnect the leads, then release the relay from its bracket or socket.
Install — Seat the new relay and reconnect each lead exactly per your photo.
Test — Restore power and confirm the relay energizes and switches its load on a call for heat.

Signs You Need a Replacement

Audible coil buzzing or no click when energized.
Blower or load fails to switch on a valid call for heat.
Furnace runs continuously due to welded contacts.
Burnt, pitted, or corroded relay contacts on inspection.

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 24VAC Control Relay for SUP1...

$29.84

Frequently Asked Questions

Does this Transformer fit my ICP SUP10M2301CIA — Low Voltage | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP SUP10M2301CIA — Low Voltage | 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 SUP10M2301CIA — Low Voltage | 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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