Itho Daalderop fault code CA / 23
Fault code CA / 23 on an Itho Daalderop boiler (including CombinAir) means: Insufficient heat absorption. The evaporation temperature has been higher than the air inlet temperature. 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 CA / 23 on an Itho Daalderop boiler indicates: Insufficient heat absorption. The evaporation temperature has been higher than the air inlet temperature.
Applies to
Itho Daalderop CombinAir, 2.5/24/33.
Click a model for the parts list and exploded view of that appliance.
Matching parts
Itho Daalderop 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:
- Itho Daalderop gasket ring 3/4 € 5.55
- Itho Daalderop pump gasket 30mm € 9.15
- Itho Daalderop sealing ring for gas control block € 12.42
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 Itho Daalderop boiler fault code CA / 23 mean?
Insufficient heat absorption. The evaporation temperature has been higher than the air inlet temperature.
How do I fix fault code CA / 23 on an Itho Daalderop 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 Itho Daalderop fault code CA / 23?
That depends on the exact cause. In the Itho Daalderop parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code CA / 23 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 Itho Daalderop boiler faults and codes at a glance →