
Quick overview
- LRZE heaters The ignition control for LRZE model pool and spa heaters.
- Manages the light off Runs the ignition sequence that gets the burner lit and proves the flame.
- A common no heat cause When a heater cranks through its sequence and never lights, the ignition control is a prime suspect.
- Factory part number Teledyne Laars R0491300.
- Direct replacement Goes in place of the original control on the heater.
- Gas work, done right Ignition components sit on the gas train, so this is a job for a qualified technician.
Similar products
Other products people compare with this one.
Product details
The R0491300 is the ignition control for LRZE model pool and spa heaters. It is the module that runs the heater from a call for heat to a lit burner.
What it controls
On a call for heat the ignition control drives the igniter, opens gas at the right point in the sequence and watches for proof of flame. If it does not see what it expects, it shuts the sequence down rather than keep gas flowing. That is why a failed control shows up as a heater that goes through the motions and never lights, or one that lights and then drops out.
Before you replace it
Several other faults produce the same symptom, including gas supply, the igniter, the flame sensor and the safety switches. Have the sequence diagnosed properly first. Ignition parts sit on the gas train of a fired appliance, so the work belongs to a qualified technician.
| Brand | Teledyne Laars |
|---|---|
| Manufacturer part number | R0491300 |
| UPC | 052337063050 |
| Type | Ignition control |
| Fits | LRZE model pool and spa heaters |
| Shipping weight | 0.75 lb |
| Ships | Parcel |
Request a quote
Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.
Customer reviews
Questions and answers
What people ask about this product, answered by our pool techs.





















