Itho Daalderop fault code A1 25
Fault code A1 25 on an Itho Daalderop heat pump (including WPU 5G) means: The electric heating element current consumption is too low. 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 A1 25 on an Itho Daalderop heat pump indicates: The electric heating element current consumption is too low.
Applies to
Itho Daalderop WPU 5G, 18-C, 18-COE, 18-E, 18-GE, 18-KC, 25-C, 25-COE, 25-E.
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 sensor cable short € 10.45
- Itho Daalderop sensor cable long € 11.76
- Itho Daalderop electrical control cable 3-way valve € 16.34
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 heat pump fault code A1 25 mean?
The electric heating element current consumption is too low.
How do I fix fault code A1 25 on an Itho Daalderop heat pump?
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 A1 25?
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 A1 25 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 heat pump faults and codes at a glance →