AWB fault code E 43
Fault code E 43 on an AWB boiler (including ThermoSystem) means: EEPROM fault. Reset the appliance once. If the code comes back, a part is usually faulty, often the burner control unit or PCB. You can check the water pressure and settings yourself; leave work on gas-carrying parts to a certified gas engineer.
After a safety alert (gas, flue gas, combustion), reset no more than once and call in a certified gas engineer. If you smell gas, call your national gas emergency number or 112 immediately.
Cause
Fault code E 43 on an AWB boiler indicates: EEPROM fault.
Applies to
AWB ThermoSystem, HRM 80/2.
Matching parts
AWB parts are available from Instalpunt; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days.
Based on the cause, these original AWB parts fit (always check the type number of your appliance):
- AWB PCB DHW module am-4 € 284.05
- AWB CVI control unit set € 335.69
- AWB readout PCB (set) € 247.35
Further reading on this cause
Other AWB codes with the same cause
- 20 — Software not compatible
- 20 F — Software not compatible
- F20 — Software incompatibility
- F63 — EEPROM defective
Fix it yourself or call an engineer?
Always consult the manual for your appliance and work safely. If in doubt or if the fault comes back, call in a qualified professional. A question about a part? Write to us at info@instalpunt.nl.
Frequently asked questions
What does AWB boiler fault code E 43 mean?
EEPROM fault.
How do I fix fault code E 43 on an AWB boiler?
First check the cause described above. Then restart the appliance using the reset button. If the message comes back, a part usually needs replacing or the fault needs to be repaired by a qualified professional.
Which parts do I need for AWB fault code E 43?
That depends on the exact cause. In the AWB parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code E 43 myself?
You can reset the appliance and check things like the water pressure or settings yourself. Work on gas-carrying parts must be left to a certified gas engineer.
All AWB boiler faults and codes at a glance →