ICP 40VA Transformer for WPG3602115LKB1 — 208/230V to 24V | Ships Today
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Overview
This OEM control transformer (ICP part number 1173691) steps your unit's 208/230V line voltage down to the 24V needed to power the control board, contactor coil, gas valve, and thermostat in your ICP / Tempstar / Heil WPG3602115LKB1 packaged unit. Rated at 40VA, it supplies the low-voltage control circuit on every cycle. This listing includes the matching 24V barrier/terminal cover (part number 1176032) for a complete, code-compliant replacement. When a transformer fails — often from a shorted thermostat wire or a stuck contactor drawing excess current — the entire low-voltage system goes dead: no display at the thermostat, no contactor pull-in, and no ignition. Symptoms include a completely unresponsive system, a blown control fuse that keeps blowing, or a transformer that is hot, buzzing, or smells burnt.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1173691 (transformer), 1176032 (24V barrier) |
| Type | Step-Down Control Transformer |
| Brand | ICP / Tempstar / Heil |
| Primary Voltage | 208/230V |
| Secondary Voltage | 24V |
| Rating | 40 VA |
| Fitment | OEM Replacement |
Compatibility
Direct OEM fit for the ICP / Tempstar / Heil WPG3602115LKB1 packaged unit. The 1173691 40VA 208/230-to-24V transformer is widely used across ICP-family condensers and packaged systems. Verify your unit's primary tap (208 vs 230) and the 40VA rating match before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and disconnect; verify zero voltage with a multimeter on the primary leads.
- Access — Remove the control-compartment service panel.
- Document — Photograph the primary and secondary wiring and the barrier placement before disconnecting.
- Remove — Disconnect the primary and 24V secondary leads, then unbolt the old transformer from its bracket.
- Install — Mount the new transformer, install the 24V barrier, and reconnect leads to the correct voltage tap per your photo.
- Test — Restore power and confirm 24V at the secondary and that the thermostat and controls power up normally.
Signs You Need a Replacement
- No power to the thermostat or control board (system completely dead)
- Control fuse blows repeatedly
- Transformer is hot to the touch, buzzing, or smells burnt
- No 24V output measured across the secondary terminals
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