What are the specs for this Transformer?

The correct replacement for ICP model RHS183H0BA0AAAA — 24V 40VA Control | 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 RHS183H0BA0AAAA — 24V 40VA Control | Ships Today.

ICP

ICP Transformer for RHS183H0BA0AAAA — 24V 40VA Control | Ships Today

Name: ICP Transformer for RHS183H0BA0AAAA — 24V 40VA Control | Ships Today
Brand: ICP
SKU: 1172619
Price: 41.60 USD
Availability: InStock

SKU: 1172619 Brand: ICP

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Overview

This OEM 24V transformer and control package powers the low-voltage circuit of your ICP RHS183H0BA0AAAA heat pump. The 40VA transformer converts line voltage to the 24V used by the thermostat, contactor coils, and reversing valve. The kit includes the reversing-valve coil (part 1172619) plus the DPDT (1183814) and DPST (1178205) relays that switch the system between heating and cooling. If the transformer shorts or burns open, the whole control circuit dies — the thermostat call never reaches the outdoor unit and nothing starts. A buzzing transformer, a repeatedly blown low-voltage fuse, or scorched secondary wiring all point to a failed component that needs replacement.

Specifications

Spec	Value
OEM Part Numbers	1172619, 1183814, 1178205
Type	Control Transformer + Relay Set
Brand	ICP / Heil / Tempstar / Comfortmaker
Secondary Voltage	24V
Rating	40 VA
Relays	DPDT (T92S11A22-24), DPST (T92P7A22-24)
Reversing Valve Coil	24V
Fit	Direct OEM Replacement

Compatibility

Engineered as a direct replacement for the ICP RHS183H0BA0AAAA heat pump and the shared ICP-built systems sold under the Heil, Tempstar, and Comfortmaker labels using these same 24V control components. Confirm the part numbers on your original transformer and relays before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the control-panel service cover on the outdoor unit.
Document — Photograph every low-voltage wire and terminal before disconnecting anything.
Remove — Label and disconnect the primary and secondary leads, unscrew the transformer bracket, and unplug the relay sockets and reversing-valve coil connector.
Install — Mount the new transformer, seat the relays, connect the reversing-valve coil, and reconnect each wire exactly per your photo.
Test — Restore power, confirm 24V at the secondary, and verify the contactor pulls in on a thermostat call.

Signs You Need a Replacement

System completely dead with no response to a thermostat call
Repeatedly blown 3-amp low-voltage fuse
Audible buzzing or burning smell from the control box
Heat pump fails to switch between heating and cooling

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 Transformer for RHS183H0BA0A...

$41.60

Frequently Asked Questions

Does this Transformer fit my ICP RHS183H0BA0AAAA — 24V 40VA Control | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP RHS183H0BA0AAAA — 24V 40VA Control | 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 RHS183H0BA0AAAA — 24V 40VA Control | 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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