ICP 40VA Transformer for WPG3244040RKC1 — 208/230V to 24V | Ships Today
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Overview
This OEM 40VA control transformer (part number 1173691) steps the 208/230V line voltage down to 24V to power the low-voltage control circuit on the ICP Tempstar/Heil WPG3244040RKC1 packaged gas unit. The 24V output feeds the control board, thermostat, gas valve, and relays. This listing pairs the transformer with the matching 24V barrier component (part number 1178431). When a transformer fails — typically from a shorted control wire, a failing component drawing excess current, or age-related winding breakdown — the entire low-voltage system goes dead: no thermostat response, no ignition, and no blower call. A burned-out transformer often shows scorching or emits a burnt-electrical smell.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1173691 (Transformer), 1178431 (24V Barrier) |
| Type | Control Transformer |
| Brand | ICP / Tempstar / Heil |
| Rating | 40 VA |
| Voltage | 208/230V Primary → 24V Secondary |
| Fitment | OEM Direct Replacement |
Compatibility
Direct OEM replacement for the ICP Tempstar Heil WPG3244040RKC1 packaged gas system. Confirm the primary tap voltage (208 vs 230) and the 40VA rating before installing to avoid overloading the control circuit.
Installation Guide
- Safety First — Disconnect power at the unit. Verify zero voltage on both primary and secondary with a multimeter.
- Access — Remove the control panel to reach the transformer.
- Document — Photograph all primary and secondary wire connections, including the 208/230V tap, before disconnecting.
- Remove — Disconnect the leads, then remove the transformer mounting screws or bracket.
- Install — Mount the new transformer and barrier, reconnect the primary to the correct voltage tap and the secondary to the 24V circuit per your photo.
- Test — Restore power and verify 24V across the secondary terminals, then confirm the thermostat, board, and gas valve respond.
Signs You Need a Replacement
- No 24V control power — thermostat and board are dead.
- Furnace will not respond to any heat or fan call.
- Burnt smell or visible scorching on the transformer.
- No measurable 24V output with line voltage present on the primary.
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