Atlantic fault code 444
Fault code 444 on an Atlantic heat pump (including Indoor unit ALFEA EXCELLIA M 1S and Indoor unit ALFEA EXCELLIA M DUO) means: BX34 no function: Short circuit. Sensor disconnected or switched off. Sensor defective. Other fault. Reset the appliance once. If the code comes back, a part is usually faulty, often a temperature sensor. 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 444 on an Atlantic heat pump indicates: BX34 no function: Short circuit. Sensor disconnected or switched off. Sensor defective. Other fault.
Applies to
Atlantic Indoor unit ALFEA EXCELLIA M 1S, Indoor unit ALFEA EXCELLIA M DUO, IDU ALFEA EXTENSA DUO AI 10 R32, IDU ALFEA EXTENSA DUO AI 3 R32, IDU ALFEA EXTENSA DUO AI 5 R32, IDU ALFEA EXTENSA DUO AI 6-8 R32, 024306, 024307, 024308, 024309, 24160, 24161.
Matching parts
Atlantic 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 444, the part involved is usually in the category: sensor.
Based on the cause, these original Atlantic parts fit (always check the type number of your appliance):
- Atlantic pressure sensor € 398.95
- Atlantic return sensor € 54.95
- Atlantic outdoor sensor € 48.95
Further reading on this cause
Other Atlantic codes with the same cause
- 10 — Outdoor temp sensor: Short circuit. Sensor disconnected or switched off. Sensor…
- 212 — Internal communication error: Sensor disconnected or switched off.
- 32 — Flow sensor 2: Short circuit. Sensor disconnected or switched off. Sensor defective.…
- 33 — HP flow sensor: Short circuit. Sensor disconnected or switched off. Sensor defective.…
- 44 — HP return sensor: Short circuit. Sensor disconnected or switched off. Sensor defective.…
- 441 — BX31 no function: Short circuit. Sensor disconnected or switched off. Sensor defective.…
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 Atlantic heat pump fault code 444 mean?
BX34 no function: Short circuit. Sensor disconnected or switched off. Sensor defective. Other fault.
How do I fix fault code 444 on an Atlantic 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 Atlantic fault code 444?
That depends on the exact cause. In the Atlantic parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code 444 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 Atlantic heat pump faults and codes at a glance →