A: warning
The boiler keeps running but reports something to look at during the next visit.
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Remeha Error Codes
Your Remeha Calenta Ace, Tzerra Ace or Avanta Ace shows a code such as E04.10 or H02.02? The table below explains the most frequent ones. On recent Remeha boilers, a code starting with H is a temporary blocking and a code starting with E a lockout. Our engineers repair Remeha boilers 7 days a week and give the price before repairing.
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Remeha boiler repair
Remeha, a Dutch manufacturer, is very present in Belgium with its wall-hung condensing boilers: the Calenta and Tzerra for houses, the Avanta for flats, and the older Quinta for larger buildings. The latest generation, marked "Ace", uses a code made of a letter and four digits.
The H codes stop the boiler for as long as a condition is not met: too large a temperature difference, a flow temperature rising too fast, a configuration that is missing. The E codes are lockouts, such as E04.10, the failed burner start, which our engineers see more than any other.
Older Remeha models display different, shorter codes. Whatever the generation, the technician reads the fault history, measures the suspect parts and gives you the price before the repair.
Remeha service and combustion analysis
A Remeha condensing boiler needs a clean heat exchanger, a free-flowing siphon and well-adjusted combustion. When one of these drifts, E04.10 or H01 codes start to appear, especially during the first cold weeks.
The yearly service covers all three, along with a check of the safety devices. You receive the service attestation at the end of the visit.
Common Remeha error codes
Codes from the recent "Ace" range of Remeha. Type yours in the search box; if it is missing, call us and give it to the engineer.
| Code | Meaning | What the technician checks |
|---|---|---|
| H02.00 | Restart procedure in progress | Information: the boiler resumes on its own. |
| H02.02 | Waiting for the configuration number | Configuration numbers CN1 / CN2, often after a board replacement. |
| H02.03 | Configuration error | Configuration numbers and control board. |
| H02.04 | Parameter error | Boiler parameters, control board. |
| H02.05 | Memory unit (CSU) does not match the control unit (CU) | Pairing of the memory unit and the control board. |
| H01.05 | Maximum difference between flow and return temperature exceeded | Water circulation, pump, flow and return sensors. |
| H01.08 | Heating flow temperature rising too fast | Circulation, pump, air in the circuit. |
| H01.14 | Maximum flow temperature exceeded | Circulation, pump, flow sensor. |
| E04.08 | Safety input open | Safety devices connected to that input. |
| E04.10 | Burner failed to start after five ignition attempts | Gas supply, ignition electrode, gas valve, flue, condensate drain. |
| E04.12 | False flame signal | Ionisation electrode, wiring, gas valve. |
| E04.13 | Fan blade stalled | Fan and its wiring. |
| E04.17 | Gas valve driver fault | Gas valve and control board. |
Code not in this table: call us, our technician knows it.
Smell of gas? Do not touch any switch, open the windows, leave the house and call 112 from outside. For any other code, write it down and call us: the technician knows what to look at and brings the right parts.
Reading a Remeha code
H: blocking
The boiler waits until the condition is normal again. If it lasts or returns often, a diagnosis is needed.
E: lockout
The boiler stays stopped. The cause has to be found and repaired by a technician.
Our way of working
Your call
Give us the model and the code. We tell you when an engineer can come.
The diagnosis
Fault history, gas pressure, ionisation, temperatures: the cause is measured, not guessed.
The repair
Price announced first, repair, combustion test, job report and invoice.
What our customers say
Where do we work?
We repair and service Remeha boilers throughout Belgium: in Brussels, in Wallonia and in Flanders. Call us and we will give you the earliest time a technician can be there.
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
What does E04.10 mean on a Remeha boiler?
The burner could not be started after five ignition attempts and the boiler has locked out. The gas supply, the ignition electrode, the gas valve, the flue and the condensate drain are inspected.
What does H02.02 mean?
The boiler is waiting for its configuration number. This usually appears after a circuit board has been replaced and must be set by the technician.
What is the difference between H and E codes?
H codes are temporary blockings that disappear when conditions return to normal. E codes are lockouts that keep the boiler stopped.
My old Remeha shows a different code: is it on this page?
Older models use other codes. Note what the display shows and call us: our engineers know the earlier generations too.
Should I restart the boiler myself?
Write the code down and call us instead. A boiler that locks out again and again has a fault that restarting will not solve.
Do you service Remeha boilers?
Yes, all Remeha gas boilers, with a combustion analysis and the service attestation.
Your Remeha shows a code?
Call us or book a time online: a heating engineer comes to your home and finds the cause.