Intertherm Furnace Parts

Intertherm Furnace Parts & Replacements

Intertherm furnaces are built for manufactured housing and mobile homes, engineered to heat reliably in tight spaces. When your Intertherm stops heating or cycles irregularly, the right OEM parts get you back to warmth fast. Common failures like igniters, draft inducer motors, and pressure switches are straightforward fixes when you use genuine Intertherm parts.

Repair Clinic stocks OEM Intertherm parts and cross-compatible Nordyne family parts. Find your model number on the furnace rating plate — it's usually inside the access panel or on the cabinet back — and we'll show you the exact parts that fit.

• Hot surface igniter won't glow: Silicon carbide igniter assembly; verify type for your model
• Furnace won't start or pressure switch keeps tripping: Draft inducer motor or pressure switch; check vent for blockage first
• Furnace ignites then shuts down after a few seconds: Flame sensor; clean with fine steel wool or replace
• No airflow from registers: Blower motor, capacitor, or limit switch; capacitor failure is most common
• Error codes or control board unresponsive: Integrated furnace control (IFC) board; OEM boards are model-specific

Enter your Intertherm model number above to see parts diagrams, availability, and pricing. Same-day shipping on most in-stock items.

Intertherm Furnace Parts Questions

What's the most common Intertherm furnace repair?

The hot surface igniter is the #1 Intertherm failure. When the igniter glows orange but doesn't hold temperature, or won't glow at all, the furnace won't light. Intertherm uses silicon carbide (SiC) igniters in most models — verify the type for your model number because mixing igniter types will cause failure. It's a 20-minute repair once you have the OEM part.

How do I find my Intertherm furnace model number?

Open the furnace access panel (usually the front or side door) and look for the rating plate — a white or silver label with model, serial, and specification data. The model number is typically formatted as a letter-number combination like M1-XXX or similar. Write down the complete model number and use it to search Repair Clinic; it ensures you get parts that match your exact furnace setup.

Can I use Nordyne or Miller parts on my Intertherm?

Often yes — Intertherm is part of the Nordyne family, which also includes Miller, Gibson, and Tappan (HVAC). Many igniter, motor, and control board parts cross-reference across the family. However, some parts are model-specific. Always enter your model number to confirm compatibility; Repair Clinic will flag parts that work across the Nordyne family and those that don't.

What should I check before replacing the pressure switch?

A tripped pressure switch is usually a symptom, not the root cause. First, inspect the furnace vent pipe (inside and outside) for blockages — lint, ice, or nesting debris. Check the hose from the inducer to the switch for cracks or kinks. Finally, listen for the inducer motor running when the furnace tries to start. If airflow is clear and the inducer runs, then replace the pressure switch. If the switch itself won't reset after airflow is restored, it has failed internally.

Order Intertherm Furnace Replacement Parts Online

Get the right furnace parts to keep your Intertherm furnace running efficiently. Whether you need a Intertherm furnace gas valve, limit switch, igniter, or blower motor, Repair Clinic has the genuine OEM Intertherm parts for a proper repair. Search by model or part number for fast results.

Intertherm Furnace Model Number: Where to Look

On Intertherm furnaces, look for the rating plate on the blower compartment door, inside the front access panel, or on the cabinet near the gas valve. This white or silver label lists the model and serial numbers along with electrical and heating specifications, so copy the complete model number exactly, including letters, numbers, and hyphens. Enter it in the model number search to pull up the parts matched to your unit. The model number filters Repair Clinic's full Intertherm furnace parts catalog, not just one part category, helping you compare the correct OEM and compatible options for the entire furnace. That means fewer wrong orders and a faster repair.