ICP 40VA Transformer for WPA3484000RKC1 – 208/230V to 24V | Ships Today
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Overview
This OEM 40VA control transformer (OEM 1173691) with its 24V terminal barrier (OEM 1176148, 42-60) is the low-voltage power source for the ICP / Heil / Tempstar WPA3484000RKC1 heat pump. The transformer steps 208/230V line voltage down to the 24V control circuit that drives the contactor coil, defrost board, and thermostat signal. A failed transformer takes the entire control system offline: no 24V means the contactor won't engage and the unit won't run on a call for cooling or heating. You'll typically find a blown low-voltage fuse, no voltage at the R and C terminals, or a transformer that buzzes, overheats, or shows scorching. Rated at 40VA, this transformer provides robust control power for the WPA3484000RKC1 and stands up to the load of the contactor and board circuits.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1173691 (Transformer), 1176148 (Barrier 42-60) |
| Type | Control Transformer |
| Brand | ICP / Heil / Tempstar |
| Primary Voltage | 208/230V |
| Secondary Voltage | 24V |
| Rating | 40 VA |
Compatibility
Direct OEM fit for the ICP / Heil / Tempstar WPA3484000RKC1 condensing unit. Widely used across ICP-family 208/230V split-system heat pumps and air conditioners that require a 40VA, 24V secondary control transformer.
Installation Guide
- Safety First – Disconnect power at the breaker and the outdoor disconnect. Verify zero voltage at the line terminals with a multimeter.
- Access – Remove the control-panel service cover to expose the transformer and low-voltage wiring.
- Document – Photograph all primary and secondary connections before disconnecting.
- Remove – Disconnect the 208/230V primary leads and the 24V secondary leads, then unbolt the failed transformer from its bracket.
- Install – Mount the new transformer, reconnect the primary and secondary leads exactly per your photo, and re-seat the barrier.
- Test – Restore power and confirm 24V across R and C, then verify the contactor pulls in on a thermostat call.
Signs You Need a Replacement
- No 24V at the control terminals and the unit won't start
- Repeatedly blown low-voltage fuse
- Buzzing, humming, or overheated transformer body
- Burnt smell or visible scorching on the windings
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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