What does fault code AL62 mean on Immergas?

Full calibration request (calibrate the gas valve). After replacing or reprogramming the control/display board, the boiler detects the absence of board settings and requires gas valve calibration; verify this by entering the service menu and confirming AL62, then perform the calibration as indicated by the manual.

What does the fault code AL80 mean in Immergas?

Lockout due to gas valve driver issue (malfunction of the control board that manages it). The driver circuit that governs the valve is on the control/display board; if the PCB fails, it does not send a signal to the valve, and the boiler locks out with AL80; check by measuring the output to the valve and, if the valve is OK, confirm a defect in the board.

What does fault code AL98 mean in Immergas?

Lockout due to reaching the maximum number of software errors. The software/configuration resides on the PCB; accumulation of errors or parameter corruption on the PCB causes AL98; check by attempting a reset and, if it reappears, check/reprogram or replace the PCB.

RefurbishedImmergas PCBs (control boards)

Immergas Caesar Eco 11 1 Control Board Display PCB Ref. 042650

Name: Immergas Caesar Eco 11 1 Control Board Display PCB Ref. 042650
Brand: Immergas
SKU: PECIEM05013X
Price: 105 EUR
Availability: InStock

105 €VAT includedIn stock · 1 unit

PCB (control board): refurbished spare part that controls the ignition, modulation, and safety features of the boiler. Useful if the boiler does not ignite, locks up, or the display is unresponsive. Reference 042650. Includes a one-year warranty and delivery within 2–4 working days in the EU.

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Delivery in 2–4 working days

1-year warranty

14-day return

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Key Data

Reference: 042650
Brand: Immergas
Type of part: PCBs (control boards)
Available units: 1 unit in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

Fault codes related to this part (not the entire boiler). They usually have more possible causes: first rule out electrodes, wiring/connections, and gas supply. Verified with ≥3 sources.

Code	What does it mean?	Cause and diagnosis (this part)
AL62	Request for full calibration (calibrate the gas valve).	After replacing or reprogramming the control/display board, the boiler detects the absence of board setting and requires gas valve calibration; verify this by entering the service menu and confirming AL62, then perform the calibration as indicated by the manual.
AL80	Lockout due to gas valve driver issue (malfunction of the PCB controlling it).	The driver circuit that controls the valve is on the control/display board; if the PCB fails, it does not send a signal to the valve and the boiler locks with AL80; check by measuring the output to the valve and, if the valve is OK, confirm a defect in the board.
AL98	Lockout due to reaching the maximum number of software errors.	The software/configuration resides on the board; accumulation of errors or parameter corruption in the PCB causes AL98; check by attempting a reset and, if it reappears, check/reprogram or replace the board.