Elco fault code 5
Fault code 5 on an Elco boiler (including Rendamax) means: Flame signal is lost during 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 5 on an Elco boiler indicates: Flame signal is lost during operation.
Fixing fault code 5: step by step
- Check that the gas valve at the appliance is open and that other gas appliances, such as the hob, are getting gas.
- Check that the condensate trap under the appliance is filled and clean; a blocked condensate drain can make the boiler lock out.
- Check outside that the air intake and flue are clear (leaves, a nest, ice or snow).
- Reset the appliance once. If the code comes straight back, do not keep resetting it.
- If the fault keeps returning, the ignition or ionisation electrode is usually worn or dirty. It sits in the sealed combustion section: have it replaced by a qualified heating engineer.
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.
Matching parts
Elco 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. These are the parts that most often fit this appliance:
- Rendamax spark plug cap ignition/ionisation electrode old no.: EVD003 € 29.90
- Rendamax outdoor sensor 1k old no.: RTV015 € 72.03
- Rendamax sensor SPFS DHW E8/KKM8 old no.: RTV070 € 72.03
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 5 mean?
Flame signal is lost during operation.
How do I fix fault code 5 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 5?
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 5 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 →