Burner Control Box for Oil Burners | Wisdo Merchants
Technical Specifications
| Property | Value |
|---|---|
| Type | Burner control box (flame safeguard) |
| Function | Controls purge, ignition, fuel valve and flame monitoring |
| Fault handling | Safety lockout, with a manual reset button |
| Fitting | Plugs into a matching wiring base on the burner |
| Uses | Oil and diesel burners on boilers, ovens, dryers and heaters |
Request a quote for this product
Call or message us to confirm stock, pricing and delivery.
- Genuine brands
- Same-day delivery in Nairobi, subject to stock
- Technical advice from our team
Burner Control Box for Oil and Diesel Burners
The control box is the brain of an oil burner. It decides when the motor starts, when the spark fires, when fuel flows and whether the flame is safe. When it fails, the burner won’t start, locks out at random or stops mid-cycle. Boilers then go cold and ovens stop baking. A new burner control box restores safe, reliable firing. At Wisdo Merchants, we supply burner control boxes to boiler technicians, bakeries, hotels, laundries and factories across Nairobi and Kenya.
Every time an oil burner starts, the control box runs a set sequence. First, it starts the fan to purge the combustion chamber. Then it switches on the ignition and opens the fuel valve. Finally, it checks the flame sensor. If no flame appears within the safety time, it shuts off the fuel and locks out, so unburnt diesel never floods the chamber.
Features and Benefits of the Burner Control Box
- Safe start sequence. It purges, ignites and opens the fuel valve in the correct order every time.
- Flame monitoring. It watches the flame sensor and cuts the fuel instantly if the flame fails.
- Lockout protection. It locks out on faults, and a reset button restarts it once the cause is fixed.
- Plug-in replacement. It plugs into its wiring base, so you swap it in minutes without rewiring.
- Restores reliability. It ends random lockouts and no-start faults caused by a failed control box.
For technicians, this means fast, safe repairs and happy clients. Meanwhile, owners get dependable heat with full flame safety.
Technical Specifications
| Property | Value |
|---|---|
| Type | Burner control box (flame safeguard) |
| Brand | Sudick |
| Model | LMO24.111C2 (Siemens LMO24.111C2 type) |
| Supply | 230 V AC, 50–60 Hz |
| Safety time (TSA) | 5 seconds maximum |
| Reset | Front reset button |
| Function | Controls purge, ignition, fuel valve and flame monitoring |
| Fault handling | Safety lockout, with a manual reset button |
| Fitting | Plugs into a matching wiring base on the burner |
| Uses | Oil and diesel burners on boilers, ovens, dryers and heaters |
Applications of the Burner Control Box and How to Use It
- Replacing a failed control box on oil and diesel burners
- Fixing no-start faults and random lockouts
- Boilers in hotels, hospitals, schools and laundries
- Bakery ovens, dryers and air heaters
- Keeping a spare for critical burners
Replacing a Faulty Control Box
Picture a technician called to a hospital boiler that keeps locking out. First, they check the basics: fuel supply, nozzle, flame sensor and electrodes. Next, with these confirmed good, they switch off and isolate the power, then unscrew the control box and unplug it from its base. After that, they plug in the new control box with the same model code and fix it in place. Finally, they restore power, press reset if needed, and watch the burner run through purge, ignition and flame proving.
Matching Parts and Spares
A control box needs a sound base to work reliably. If the old base is cracked or scorched, replace it with the matching plug-in wiring base. Low fuel pressure also causes lockouts, so check the pump and swap in our Suntec AS47 and AS67 pumps if needed. On boilers, a stainless steel PT100 boiler sensor keeps the burner firing at the right temperature.
Safety and Handling
- Isolate the power first. The control box carries mains voltage, so switch off and isolate before removing it.
- Match the model exactly. Control boxes have different timings and functions, so use the same model code as the original.
- Don’t keep pressing reset. Repeated resets can flood the chamber with unburnt fuel. Find and fix the cause first.
- Never bypass the flame sensor. Defeating flame safety risks explosions and fires.
- Use a qualified technician. Burner controls handle fuel and flame safety, so they must be fitted correctly.
Frequently Asked Questions
How do I know the control box is faulty?
A burner that won’t start, locks out at random, or stops mid-cycle can point to the control box. Check the fuel supply, nozzle, flame sensor and electrodes first. If those are good, the control box is a likely cause.
Why does my burner lock out?
Common causes are no flame detected, a dirty flame sensor, air in the fuel line, low fuel pressure or a worn nozzle. The control box locks out to keep things safe.
Can I fit any control box to my burner?
No. Each burner needs the correct model, with matching timings and the right base. Our Sudick LMO24.111C2 matches burners that use the Siemens LMO24.111C2 type. For other models, bring your old control box or send us a photo of its label, and we’ll match it.
Do I need to change the base too?
Only if it’s damaged. A cracked, scorched or corroded base causes faults even with a new control box.
Do you deliver outside Nairobi?
We offer same-day delivery once your order is confirmed, subject to stock availability. Call or email our sales team to confirm stock and arrange delivery to your site.
Order a Burner Control Box from Wisdo Merchants
Safe, reliable firing starts with a healthy control box. Our burner control box restores dependable starts and full flame safety to your burner. Furthermore, you can browse our burners range for burners and spares.
Visit us: Dar es Salaam Road, Off Enterprise Road, Industrial Area, Nairobi
Call: +254 795 938305
Email: sales@wisdomerchants.com
Reviews
There are no reviews yet.