Inventum fault code AP3 (geen fault)
Fault code AP3 (geen fault) on an Inventum heat pump (including Ecolution) means: Freeze protection is active. 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 AP3 (geen fault) on an Inventum heat pump indicates: Freeze protection is active.
Fixing fault code AP3 (geen fault): step by step
- Note the exact code and the type of your appliance (see the rating plate).
- Check that the appliance has power and that its circuit breaker is on.
- Reset the appliance once. If the code comes straight back, do not keep resetting it.
- If the code comes back, choose the matching part below or have a qualified heating engineer take a look.
Applies to
Inventum Ecolution, Modul-AIR.
Fault code AP3 (geen fault) on other Inventum series
The same code does not mean the same thing on every series. Check the rating plate to see which series you have:
- AP-3 (geen fault) on Ecolution, Combi 50, Solo: Freeze protection gas protection active.
- AP3 (geen fault) on Spaarpomp, Niet van toepassing: Freeze protection active.
Matching parts
Inventum 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:
- Inventum ring gasket 138x105x1.5 € 21.43
- Inventum fan plate Optima DC for service AC version € 1,896.51
- Inventum air-in sensor € 37.30
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 Inventum heat pump fault code AP3 (geen fault) mean?
Freeze protection is active.
How do I fix fault code AP3 (geen fault) on an Inventum 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 Inventum fault code AP3 (geen fault)?
That depends on the exact cause. In the Inventum parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code AP3 (geen fault) 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 Inventum heat pump faults and codes at a glance →