Buderus fault code OE-
Fault code OE- on a Buderus boiler (including Logamax plus GB402-320 G20 and Logamax plus GB402-320 G25) means: Appliance is in standby, heat demand is present, but too much energy is being supplied. The current heat demand of the installation is lower than the minimum modulation of the burner. Reset the appliance once. If the code comes back, a part is usually faulty.
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 OE- on a Buderus boiler indicates: Appliance is in standby, heat demand is present, but too much energy is being supplied. The current heat demand of the installation is lower than the minimum modulation of the burner.
Applies to
Buderus Logamax plus GB402-320 G20, Logamax plus GB402-320 G25, Logamax plus GB402-395 G20, Logamax plus GB402-395 G25, Logamax plus GB402-470 G20, Logamax plus GB402-470 G25, Logamax plus GB402-545 G20, Logamax plus GB402-545 G25, -.
Matching parts
Buderus parts are available from Instalpunt; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days.
This message does not point directly to one faulty part. If the code keeps coming back, view the Buderus parts:
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 Buderus boiler fault code OE- mean?
Appliance is in standby, heat demand is present, but too much energy is being supplied. The current heat demand of the installation is lower than the minimum modulation of the burner.
How do I fix fault code OE- on a Buderus 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 Buderus fault code OE-?
That depends on the exact cause. In the Buderus parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code OE- 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 Buderus boiler faults and codes at a glance →