FC4031 – UNIVERSAL FAN CENTER (120V, 208V, or 240V)

A fan center combines a transformer and a fan relay into one unit. If your furnace or air handler uses a separate transformer and relay to control the blower, this universal fan center replaces both. The multi-tap transformer works with 120V, 208V, or 240V primary voltage and outputs 24V.

Specs: 40 VA transformer, multi-tap primary (120V/208V/240V), 24V secondary, DPDT relay integrated, Supco brand

Replaces: FC4031, FC90130

Fits: Most furnaces and air handlers where you need a combined transformer + fan relay. Universal replacement.

Need help? See our AC Clicking But Not Starting Guide.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Specs

• TypeFan Relay
• Detail120V, 208V, or 240V

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• FC90130

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Do I need an account to buy from you?

No. No account, no appointment, no minimums, and no contractor licence required. We have been open to the public in Dallas since 1998.

Do you ship?

No. Everything is sold in person at the counter - 10226 Plano Rd, Suite 104, Dallas TX 75238.

Can you help me work out what I need?

That is what the counter is for. Bring the old part, or a photo of the data plate, and we will work through it with you.

Do you test parts?

We meter capacitors, contactors, motors, ignitors, relays and transformers free at the counter, whether or not you buy from us.

What are your hours?

Monday to Friday 10am to 7pm, Saturday 10am to 3pm.