ICP Transformer for WPA3604000RKC1 — 40VA 208/230V to 24V | Ships Today

Overview

This OEM 40VA control transformer (part number 1173691) steps 208/230V line voltage down to the 24V needed to power the contactor coil, control board, and low-voltage circuit on the ICP/Tempstar/Heil WPA3604000RKC1. It ships with the matching terminal barrier (part number 1176148, rated 24V 42-60) that protects and isolates the low-voltage connections. A failed transformer leaves the entire 24V control circuit dead — the contactor will not pull in and the unit will not start, even though line power is present.

Specifications

Compatibility

Direct OEM fit for the ICP/Tempstar/Heil WPA3604000RKC1. The 40VA 208/230V-to-24V transformer is common across ICP-family condensers and heat pumps; verify the 208/230V primary, 24V secondary, and 40VA rating match your existing unit before installing.

Installation Guide

1. Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
2. Access — Remove the electrical service panel.
3. Document — Photograph the primary and secondary wire colors and terminal positions.
4. Remove — Unscrew the transformer mounting bracket and disconnect the primary and secondary leads.
5. Install — Mount the new transformer and barrier, then reconnect leads exactly per your photo (primary to line, secondary to 24V circuit).
6. Test — Restore power and confirm 24V across the secondary with a multimeter; verify the contactor energizes on a call.

Signs You Need a Replacement

• No 24V control voltage at the contactor or board
• Unit completely dead with line voltage present
• Burnt or melted transformer housing
• Repeated blown low-voltage fuses

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.