Feed fault
Auger or suction jammed.
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Pellet Boiler: Servicing, Repair and Advice
In short: Ignition that fails, smoke, a noisy auger or clinker in the burner pot: our heating engineers service and repair pellet boilers and their feed systems. Call 0477 03 88 98.
A pellet boiler heats a whole house with wood pellets stored in a silo or a hopper. It needs a little more care than a gas boiler, and a technician who knows the feed system, the burner and the hydraulics of the plant room.
5,0on Google· 22 years of experience
Feed systemAuger and suction
Yearly serviceCombustion set
Buffer tankAnd plant room
Cost firstBefore any repair
Repairing a pellet boiler and its pellet feed
Many pellet boiler faults are about the fuel getting to the burner. An auger that jams on a lump of sawdust, a suction system that no longer draws pellets from the silo, a level sensor that gives the wrong signal: the boiler stops and shows an ignition or fuel fault.
The engineer checks the silo, the condition of the pellets, the auger motor, the suction turbine and the hoses, then the igniter, the flame sensor and the fan. Damp or dusty pellets cause more faults than people think.
He explains what he found and gives you the repair cost before replacing anything.
Yearly service and combustion setting
During the service the engineer empties and cleans the burner pot, the combustion chamber and the heat exchanger tubes, removes the ash and checks the cleaning system if the boiler has one. He checks the seals of the door and the ash pan.
He then sets the air and fuel supply and measures the combustion. A pellet boiler that is badly set produces more ash, clinker and soot, and uses more pellets for the same heat.
The flue is checked too: a pellet boiler needs good draught, and the flue must be swept at the frequency required by the rules.
Buffer tank, pumps and plant room hydraulics
Many pellet boilers work with a buffer tank that stores hot water and lets the boiler run for longer, more efficient cycles. The pumps, mixing valves and controls around it matter as much as the boiler itself.
A buffer tank that is badly connected or a mixing valve that sticks gives cold radiators even though the boiler is running. The engineer checks the temperatures, the pumps and the settings of the controls.
If you also produce hot water with the boiler, he checks the cylinder and its sensor, and the protection against legionella.
Advice before installing or replacing a pellet boiler
A pellet boiler suits a house without mains gas and with room for a silo or a pellet store. It also needs a suitable flue and access for deliveries.
Before advising, the engineer looks at your heating needs, the space available, the existing radiators and the flue. Depending on the house, a heat pump or a propane boiler may be a simpler choice; he tells you honestly.
If you go ahead, you receive a detailed quote with the boiler, the storage, the hydraulics and the commissioning.
Signs that something is wrong
Difficult ignition: the boiler tries several times before lighting, or shows an ignition fault. Smoke or a smell in the boiler room: a seal, the draught or a dirty exchanger.
Consumption going up: the boiler is dirty or badly set. A noisy auger or motor: a jam, a worn bearing or broken pellets.
Clinker in the burner pot: pellets of poor quality or wrong air settings. Each of these is worth a call before it becomes a breakdown.
How the visit goes
Call or book online and tell us the make of the boiler and what it shows. A photo of the display or of the burner pot on WhatsApp helps.
The call-out cost is given before anyone leaves. On site, the engineer finds the cause, gives you the repair cost and waits for your agreement.
You receive a job sheet and an invoice from Service Technic Belgium, and the service attestation after a yearly service.
What we see most often
Ignition
Igniter or flame sensor.
Clinker
Pellets or air setting.
Cold radiators
Buffer tank or valve.
When you call
The make
And the model.
The display
Fault message or code.
The pellets
Brand and storage.
Last service
And last sweep.
How a visit works
You call or book
Describe the problem; a photo of the unit or of the code on the display, sent on WhatsApp, helps the technician prepare.
Call-out cost first
The office tells you what the visit costs and when the technician will come, before anyone sets off.
Your agreement first
On site, the technician explains what he found and what the repair costs, then waits for your yes. Job sheet and invoice at the end.
What our customers say
Where we work
We service and repair pellet boilers across Belgium, especially in Wallonia and Flanders where many homes have no mains gas.
BrusselsWalloon BrabantFlemish BrabantHainautNamurLiègeLuxembourgAntwerpEast FlandersWest FlandersLimburg
Frequently asked questions
How often should a pellet boiler be serviced?
Every year, plus regular emptying of the ash and cleaning by you between services, as the manufacturer describes.
Why does my pellet boiler not light?
The pellets may not reach the burner, the igniter may be worn or the flame sensor dirty. The engineer checks the feed first, then the ignition.
Do pellets of poor quality cause problems?
Yes: dust, damp or too much bark give clinker, soot and feed jams.
Do you repair all makes?
We work on the common makes of pellet boilers found in Belgium; tell us the make when you call.
Can you install a pellet boiler?
Yes, after a survey that checks the space, the storage and the flue. Sometimes another solution suits better and we say so.
Is a pellet boiler suitable for every house?
It needs room for the pellets and a suitable flue. The survey tells you whether it fits your home.
How do I book?
Call 0477 03 88 98, send us a WhatsApp message or book online with the « Book an appointment » button. Tell us the municipality and, in a few words, what is going on.
A problem with your pellet boiler?
Call 0477 03 88 98 or book online: an engineer comes to find the cause.