Jandy R0367100 Hot Surface Igniter Replacement Kit — 4 in, Fits Laars Lite2 LJ Pre-2006 Gas Heaters — Genuine OEM
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The Jandy R0367100 Igniter Replacement Kit is the genuine OEM hot surface igniter for Laars and Jandy Lite2 LJ gas pool and spa heaters. It is item 31 on the Lite2 LJ parts diagram and ships with its mounting screw.
⚠️ Pre-2006 Heaters Only
This igniter fits Lite2 LJ heaters built before 2006. Heaters built from 2006 onward use the igniter box assembly R0449800 in the same diagram position. The two are not interchangeable, and build year — not model number — is what decides it. Check the date on your heater's rating plate before ordering.
How a Hot Surface Igniter Works
This is not a spark electrode. A ceramic element draws current and glows to ignition temperature, and the gas valve opens onto the already-glowing element to light the main burner. That matters for diagnosis: you will not hear clicking from a hot surface system, so a silent no-light is normal behaviour for a failed igniter rather than a sign of a different fault.
When This Is the Part You Need
The classic symptom is a heater that responds to a call for heat, runs its blower and purge cycle, and then locks out without ever lighting. A failed igniter often looks visibly cracked, blistered or dull where it should be intact. Ignition-failure and lockout codes that clear on reset and then return point the same way.
Compatible Heaters
- Laars / Jandy Lite2 model LJ, built before 2006
- Covers the full size range: LJ125, LJ175, LJ250, LJ325, LJ400
- Includes the natural gas variants, for example LJ250N
Key Features
- Genuine Jandy OEM: factory part for the Lite2 LJ burner, not an aftermarket equivalent.
- Mounting screw included: no separate hardware order.
- Covers the whole LJ range: one igniter serves LJ125 through LJ400.
- Diagram item 31: matches the Lite2 LJ service documentation.
- Also sold as Laars: the same part appears under the Laars and Teledyne Laars names.
Specifications
- Part Number: R0367100
- Type: Hot surface igniter replacement kit
- Overall Dimensions: 4.75 in L x 1.25 in W x 0.75 in D
- Mounting Length: 4 in, bracket to tip
- Element Material: Ceramic
- Includes: Igniter with bracket and mounting screw
- Diagram Reference: Item 31
- Post-2006 Equivalent: R0449800 igniter box assembly
- Alternate Part Numbers: 47-295-2524, LAR-151-3671, J2017, W00425, Model 601
- Brand: Jandy / Zodiac, Laars lineage (Genuine OEM)
Frequently Asked Questions
How do I know if my heater is pre-2006?
Check the date of manufacture on the rating plate, usually on the side of the cabinet or inside the front panel. The serial number also encodes the build date. If you are unsure, send us the serial number and we will tell you which igniter you need.
What is the difference between this and R0449800?
R0367100 is the igniter itself for pre-2006 heaters. R0449800 is the igniter box assembly used on heaters built from 2006 onward. They occupy the same position on the parts diagram but are built differently and cost differently.
Why does my heater run but never light?
A failed igniter is the most common cause. The control board runs its normal pre-purge, calls for ignition, gets no flame signal and locks out. Before replacing it, confirm gas supply and that the gas valve is opening, since those produce the same symptom.
Can I test the old igniter?
A resistance check across the element will show an open circuit on a failed unit. A visual inspection is often enough — cracks, blistering or a chalky, eroded element all mean replacement. Never test by touching the element.
How careful do I need to be installing it?
Very. The ceramic element is brittle and a hairline crack from handling will kill it immediately, producing exactly the fault you were trying to fix. Handle the igniter by its metal base and bracket only, never by the element.
Is this the same as the aftermarket igniters sold for these heaters?
No. Several manufacturers sell aftermarket igniters marketed against the Lite2 LJ. This listing is the genuine Jandy OEM part.
Who should install it?
A qualified pool professional or licensed gas technician. The heater must be isolated at the breaker and the gas supply shut off before the burner tray is accessed.
Frequently asked questions
What is the part number for this igniter?
Jandy lists this igniter under part number R0367100. Quote R0367100 when you cross-reference it against your equipment manual, an existing part, or a parts diagram, so you are comparing the same revision.
How do I confirm this fits my equipment?
Match the part number on the component you are replacing, or look it up in the parts list for your Laars or Jandy heater. Build year matters on this part, so if your model or serial number is not named on this page, send it to us before you order and we will confirm the fit.
Does gas heater work need a professional?
Yes. Gas heating equipment sits under specific code requirements covering gas supply, venting, bonding and grounding. Shut off the gas and cut power at the breaker before opening the heater, and have a licensed professional carry out the work.
Is there a warranty on this part?
It carries the standard Jandy manufacturer warranty. The terms are set by Jandy, and on gas heating equipment the coverage generally applies only when a licensed professional performs the installation. Keep the receipt and packaging until you have confirmed correct operation.
California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.