What are the specs for this Transformer?

The correct replacement for ICP model RHH072S0CA0AAAA — 40 VA Control Circuit | 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 RHH072S0CA0AAAA — 40 VA Control Circuit | Ships Today.

ICP

ICP 24V Transformer for RHH072S0CA0AAAA — 40 VA Control Circuit | Ships Today

Name: ICP 24V Transformer for RHH072S0CA0AAAA — 40 VA Control Circuit | Ships Today
Brand: ICP
SKU: 1172619
Price: 36.40 USD
Availability: InStock

SKU: 1172619 Brand: ICP

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Overview

This OEM 24V control transformer and reversing-valve circuit kit powers the low-voltage controls on the ICP Tempstar Heil RHH072S0CA0AAAA heat pump. It steps line voltage down to a stable 24V, 40 VA control signal feeding the board, contactor coil, and reversing-valve solenoid. A failed transformer kills the entire control circuit — the contactor won't engage, the unit won't start, and the transformer is often found buzzing, overheated, or open. Associated OEM components include reversing-valve coil 1172619 (24V) and DPST relay 1178205 (T92P7A22-24).

Specifications

Spec	Value
OEM Part Numbers	1172619, 1178205
Type	Control Transformer / 24V Circuit Kit
Brand	ICP (Tempstar / Heil)
Secondary Voltage	24V
Rating	40 VA
Reversing Valve Coil	24V (1172619)
Relay	24V DPST T92P7A22-24 (1178205)

Compatibility

Engineered for the ICP Tempstar Heil RHH072S0CA0AAAA heat pump and other RHH-series condensing units using the same 24V control architecture. Confirm your model and existing part numbers before ordering.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
Access — Remove the electrical service panel from the condensing unit.
Document — Photograph all wire connections before disconnecting anything.
Remove — Note primary and secondary leads, then disconnect and unmount the failed transformer/relay.
Install — Mount the new transformer, reconnect primary and 24V secondary leads per your photo.
Test — Restore power and verify 24V at the secondary and proper contactor pull-in.

Signs You Need a Replacement

No 24V at the control board or contactor coil
Unit completely dead with line voltage present
Buzzing, overheating, or visibly burnt transformer
Repeated control fuse failures

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 24V Transformer for RHH072S0...

$36.40

Frequently Asked Questions

Does this Transformer fit my ICP RHH072S0CA0AAAA — 40 VA Control Circuit | Ships Today?

Yes. This is the factory-specified OEM transformer for the ICP RHH072S0CA0AAAA — 40 VA Control Circuit | 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 RHH072S0CA0AAAA — 40 VA Control Circuit | 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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