Suburban 525009 Furnace Igniter Electrode & Wire Assembly (Replaces 232286) – SF Series

Restore Reliable Ignition to Your RV Furnace

The Suburban 525009 igniter electrode and wire assembly is a genuine OEM replacement designed to restore proper ignition in Suburban SF series RV furnaces. This single electrode produces the spark required to ignite the burner and also acts as a flame sensor to ensure safe furnace operation.

If your RV furnace is clicking but not lighting, or cycling without producing heat, a faulty electrode is one of the most common causes.

Supersession Information

• Current Part Number: 525009

• Replaces / Former Part Number: 232286

This part is the updated replacement for 232286 and is fully interchangeable with the original design.

Compatibility

Primary Compatibility: SF Series Furnaces

Standard Models:

• SF-20
• SF-25
• SF-30
• SF-35
• SF-42

F Series (Front Gas Connection):

• SF-20F
• SF-25F
• SF-30F
• SF-35F
• SF-42F

Extended Compatibility

SF-Q Series:

• SF-20Q
• SF-25Q
• SF-30Q
• SF-35Q
• SF-42Q

SFV Series (Multi-Position Furnaces):

• SFV-20
• SFV-25
• SFV-30
• SFV-35
• SFV-42

Important Compatibility Requirement

This electrode is only compatible with furnaces that meet the following condition:

• Serial Number must be ABOVE 934701426

Always verify your furnace model and serial number before ordering to ensure proper fitment.

Features & Benefits

• Genuine Suburban OEM replacement electrode
• Single igniter electrode design
• Produces spark for ignition and confirms flame presence
• Includes wire assembly and grommet for installation
• Does not include gasket
• Direct replacement for part 232286
• Restores reliable and safe furnace operation

Specifications

• Brand: Suburban
• Part Number: 525009
• Replaces: 232286
• Type: Igniter electrode and wire assembly
• Electrode Type: Single
• Includes: Wire assembly and grommet
• Gasket: Not included
• Application: RV furnace ignition system

When Do You Need This Electrode?

Replace your igniter electrode if you notice:

• Furnace clicking but not igniting
• No flame or intermittent ignition
• Weak or inconsistent spark
• Furnace shuts off shortly after startup
• Visible wear, corrosion, or cracking

Pro Tip

Ignition issues are often caused by multiple components working together. If you're replacing the electrode, also inspect:

• Sail switch
• Limit switch
• Control board

Replacing these at the same time can help prevent repeat failures.

FAQ

Q: Is this the same as part 232286?
A: Yes. Part 525009 is the updated replacement for 232286 and is fully interchangeable.

Q: Does this include a gasket?
A: No. This assembly includes the grommet but does not include a gasket.

Q: How do I know if my furnace is compatible?
A: Check that your furnace model is listed above and confirm your serial number is above 934701426.