AWB fault code 20 F
Fault code 20 F on an AWB boiler (including ThermoElegance) means: Software not compatible. 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 20 F on an AWB boiler indicates: Software not compatible.
Applies to
AWB ThermoElegance, HR 35 ST.
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 control panel display € 179.03
- AWB control PCB € 351.53
- AWB wiring harness display € 37.90
Further reading on this cause
Other AWB codes with the same cause
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 20 F mean?
Software not compatible.
How do I fix fault code 20 F 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 20 F?
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 20 F 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 →