The model
On the front or a label underneath: Condens 2300i, 7000i, or an older reference.
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Bosch Heating Engineer: Boiler Repair, Servicing and Breakdowns
In Belgium, the Junkers boilers of yesterday are today's Bosch Condens models, and they are installed in a huge number of homes. Our heating engineers fix, maintain and replace them across the whole country, from Brussels to Wallonia and Flanders. We work 7 days a week and quote the price before touching anything.
5,0on Google22 years of experiencePrice agreed before the work
Condens boilersAnd former Junkers models
Compress heat pumpsServicing and repairs
Free quoteFollowing a home visit
7 days a weekEvening slots too
Bosch Condens out of order
Most Bosch boilers we are called to are wall-hung condensing gas units: the Condens 2300i W, Condens 5300i and Condens 7000i W, plus older models that carried both the Bosch and Junkers names. A fault appears as a short code on the screen, such as EA when no flame has been detected, or a code relating to temperature or water pressure.
Our method is step by step: is gas reaching the valve, is there a spark and is the flame detected, does the fan run, what do the flow and return sensors read, are the pump and three-way valve working, and only after all that, the electronic board. Testing in this order avoids buying an expensive board when a cheap sensor was the culprit.
The most common messages are explained on our Bosch error codes page. Read us the code on the phone: the engineer can then load the likely part and often repair the boiler in one trip.
Keeping a Bosch boiler efficient
Serviced at the right moment, a Bosch boiler keeps its efficiency and avoids breaking down on the coldest night. In Belgium the required interval depends on the Region and on the fuel; we tell you which applies when you book.
The engineer cleans the exchanger, burner and condensate trap, checks the expansion vessel and pressure relief valve, tests the safety devices and runs a combustion analysis. If you control your heating with an EasyControl thermostat or the Bosch app, he checks the connection while on site.
You then receive the maintenance attestation, together with a word on any part showing wear, so you can plan its replacement calmly.
Compress heat pumps and hot water
Under the Compress name, Bosch makes air-to-water heat pumps such as the Compress 7000i AW, and heat pump water heaters too. We install, maintain and repair them, both for current owners and for people who want to leave a gas or oil boiler behind.
Before advising a heat pump, we make sure the house will benefit: insulation, radiator sizes, a spot for the outdoor unit, noise towards neighbours and hot water use. When a heat pump alone is not the answer, we explain the alternatives, among them hybrid systems.
We deal with defrost problems, flow alarms, sensor errors and weak performance after a cold spell, each repair being priced before we start.
Changing an old Bosch or Junkers boiler
Plenty of Belgian homes still rely on a Junkers or early Bosch boiler fitted fifteen or twenty years ago. While it runs reliably, there is no hurry. Once breakdowns multiply or a board is no longer produced, a new condensing boiler is the sensible move.
We begin with a visit to check the flue, gas meter, radiators, hot water needs and available space, then send a free quote with the recommended output and, where it makes sense, a heat pump or hybrid alternative.
On installation day, our team drains the system, removes the old boiler, fits and connects the new one, refills and bleeds the circuit, commissions it and shows you the controls. We take the old appliance away.
Useful details to give us
With a few details the engineer arrives better prepared. No need to open anything: just look at the boiler and its display.
The code
Letters and digits on the screen, and whether a light blinks.
The pressure
The reading on the gauge, in bar; below about one bar, the boiler usually stops.
What still works
Heating without hot water, or the reverse? It narrows the search.
Bosch repair or service in three steps
Contact
Phone, WhatsApp or online, with the details above and a photo if you can.
Price agreed
Call-out and first hour stated; parts quoted on site before fitting.
Intervention
Repair or service, a clear explanation, the job sheet and invoice.
What our customers say
Bosch boilers anywhere in Belgium
We service and repair Bosch boilers and heat pumps across Belgium: Brussels, Wallonia and Flanders. Call us for a breakdown and we will give you the first free slot in your area.
BrusselsWalloon BrabantFlemish BrabantHainautNamurLiègeLuxembourg provinceAntwerpEast FlandersWest FlandersLimburg
The brands we work with
Our technicians work on all brands: they install, service and repair appliances from the major manufacturers. For a new installation, we recommend the model that suits your home and budget.
We buy our equipment from all the major Belgian wholesalers and suppliers, including Facq, Van Marcke and Desco: genuine parts, quickly available.
Frequently asked questions
Has my Junkers boiler become a Bosch?
In Belgium, boilers formerly sold as Junkers now carry the Bosch name, and many parts are shared. We repair both, old and new.
What does EA mean on a Bosch boiler?
No flame was detected. Check the gas is open, then call us on 0477 03 88 98 instead of resetting repeatedly.
Do you repair Bosch heat pumps?
Yes, Compress models included: we read the controller's errors, check the water and refrigeration sides and fix the cause.
Are you part of Bosch's service network?
No, we are an independent heating company that repairs and services Bosch appliances.
How long does a Bosch service last?
About an hour on a regularly maintained boiler; you get the attestation at the end.
Can my Bosch boiler be replaced by a heat pump?
If the house is suitable, yes. We visit first and send a free quote comparing the options.
Do you work on Sundays?
Yes, 7 days a week; the weekend supplement is announced before we come.
Bosch boiler showing a fault?
Call us for a quick repair, book a service online or ask for a free quote.