Elco fault code 11
Fault code 11 on an Elco boiler (including Rendamax) means: Incorrect flame signal. An ionisation current higher than 1 µA was measured while the burner was not in operation. Reset the appliance once. If the code comes back, a part is usually faulty. 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 11 on an Elco boiler indicates: Incorrect flame signal. An ionisation current higher than 1 µA was measured while the burner was not in operation.
Applies to
Elco Rendamax, R2700, R2701, R2800, R2801, R2900, R2901, R30/100, R30/120.
Click a model for the parts list and exploded view of that appliance.
Fault code 11 on other Elco series
The same code does not mean the same thing on every series. Check the rating plate to see which series you have:
- 11 on Rendamax, R30/45, R504: Incorrect flame signal.
Matching parts
Elco parts are available from Instalpunt; shipping to EU countries from €17.95 (€24.95 for more distant countries), usually 3–5 working days.
For fault code 11, the part involved is usually in the category: electrode.
This message does not point directly to one faulty part. These are the parts that most often fit this appliance:
- Rendamax spark plug cap ignition/ionisation electrode old no.: EVD003 € 28.75
- Rendamax outdoor sensor 1k old no.: RTV015 € 69.26
- Rendamax sensor SPFS DHW E8/KKM8 old no.: RTV070 € 69.26
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 Elco boiler fault code 11 mean?
Incorrect flame signal. An ionisation current higher than 1 µA was measured while the burner was not in operation.
How do I fix fault code 11 on an Elco 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 Elco fault code 11?
That depends on the exact cause. In the Elco parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code 11 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 Elco boiler faults and codes at a glance →