Multiple request error
The A44 error code on Ferroli boilers indicates multiple request error.
Ferroli A44 means: multiple request error. The usual cause is repeated short-term requests. You can safely reset the boiler once — if A44 returns, do not keep resetting. A qualified heating engineer should diagnose the root cause.
What Does A44 Mean
The A44 code is shown by the boiler’s control board when it detects multiple request error. The boiler then stops instead of continuing to run in that condition: the code is the appliance reporting a problem, not proof that the boiler is broken.
| What you see on the boiler |
|---|
| The display shows A44 and the boiler stops until the fault is cleared |
Common Causes
Causes documented in the Ferroli service literature published by centriassistenza.org, cross-checked against the manufacturer’s fault-code table.
| Cause |
|---|
| Repeated short-term requests |
Safety Warning
A44 involves electrical or pressure-related components. Do not attempt repairs without proper qualifications. Ensure the boiler is electrically isolated before any inspection. If you notice water leaks, unusual sounds, or pressure anomalies, contact a qualified heating engineer immediately.
Parts & Prices
Prices shown are indicative. Actual prices and availability vary by region.
How to Fix It
Check if there are pressure peaks in the DHW circuit. If necessary, modify parameter b11
Refer to the Ferroli service documentation for the detailed procedure. Only a qualified engineer should carry out these repairs.
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Affected Models
Ferroli models that can display fault code A44:
| Model Family | Output Range | Frequency |
|---|---|---|
| All Ferroli models | — | Possible |
Frequently Asked Questions
Check if there are pressure peaks in the DHW circuit. If necessary, modify parameter b11. According to the technical documentation, this is the first check on the list for A44.
A44 is not classified as a high-severity fault, so the boiler can be reset once. If A44 comes back, stop resetting: the underlying cause is still there and needs a qualified heating engineer.