Electronic board malfunction block
The 80 error code on Immergas boilers indicates electronic board malfunction block.
Immergas 80 means: electronic board malfunction block. The usual causes are it occurs in the event of a malfunction of the electronic board that controls the valve. defective valve, if the block or the anomaly persists it is necessary to call an authorized company (for example the or immergas). it is possible to check this anomaly only in the list of errors in the "information" menu. You can safely reset the boiler once — if 80 returns, do not keep resetting. A qualified heating engineer should diagnose the root cause.
What Does 80 Mean
The 80 code is shown by the boiler’s control board when it detects electronic board malfunction block. 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 80 and the boiler stops until the fault is cleared |
Common Causes
Causes documented in the Immergas service literature published by centriassistenza.org, cross-checked against the manufacturer’s fault-code table.
| Cause |
|---|
| It occurs in the event of a malfunction of the electronic board that controls the valve. Defective valve |
| If the block or the anomaly persists it is necessary to call an authorized company (for example the |
| Immergas). It is possible to check this anomaly only in the list of errors in the "Information" menu |
Safety Warning
80 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
Press the Reset button
Refer to the Immergas service documentation for the detailed procedure. Only a qualified engineer should carry out these repairs.
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Affected Models
Immergas models that can display fault code 80:
| Model Family | Output Range | Frequency |
|---|---|---|
| All Immergas models | — | Possible |
Frequently Asked Questions
Press the Reset button. According to the technical documentation, this is the first check on the list for 80.
80 is not classified as a high-severity fault, so the boiler can be reset once. If 80 comes back, stop resetting: the underlying cause is still there and needs a qualified heating engineer.

