E:40 error code
E:40 – Remeha Quinta Pro 30–115 error code
What does Remeha Quinta Pro 30–115 wall-hung gas boiler range E:40 mean?
Remeha documents E:40 for the Quinta Pro range as “Heat-recovery unit test error”. This is a boiler lock-out or fault code that requires the cause to be corrected before normal operation can resume.
The code identifies the condition detected by the product; it does not always identify the failed component on its own. Confirm the full code and exact model before ordering parts or attempting a reset.
The Remeha Quinta Pro 30–115 wall-hung gas boiler range E:40 error code indicates remeha documents E:40 for the Quinta Pro range as “Heat-recovery unit test error”. This is a boiler lock-out or fault code that requires the cause to be corrected before normal operation can resume. This guide explains what the code means, the symptoms and likely causes, the checks that are safe to make, and when to stop and arrange an authorised repair.
Symptoms you may notice
The control display shows E:40. Heating or hot-water operation may stop and the boiler may remain locked out until the fault is corrected.
Common causes
The boiler controller has detected a safety or operating condition. The exact cause must be confirmed from the stored fault history and model-specific service checks.
Before you start troubleshooting
Use the display, rating label or product menu to confirm the exact model. Similar-looking codes can have different meanings across product generations and regions.
- Record the complete code before switching the equipment off.
- Check only user-accessible controls, filters and external connections described in the manual.
- Do not open gas, refrigerant, combustion or electrical compartments.
Troubleshooting steps
Record the complete code and exact model. Check only user-accessible system pressure and external controls where the user manual permits. Do not remove the casing; sensor, circulation, combustion, fan, gas-valve and PCB checks require a qualified engineer.
Can you fix this error code yourself?
The safest next step depends on the exact model and the cause behind the code. External checks may help, but a returning fault needs professional diagnosis.
A successful reset is not proof that the underlying issue is fixed. If E:40 reappears, note when it happens and give that information to the service engineer.
Reset instructions
After permitted external checks, press the boiler reset control once. If the code returns, do not repeatedly reset the appliance; arrange professional diagnosis.
Applicable products and models
Quinta Pro 30–115 wall-hung gas boiler rangeQuinta Pro 30; Quinta Pro 45; Quinta Pro 65; Quinta Pro 90; Quinta Pro 115Legacy and 2015 manual generationsWhen to contact a professional
Contact Remeha support or a suitably qualified Gas Safe registered commercial heating engineer. Provide the full code, exact model, serial number and recent operating history.
Frequently asked questions
What does Remeha Quinta Pro 30–115 wall-hung gas boiler range E:40 mean?
Remeha documents E:40 for the Quinta Pro range as “Heat-recovery unit test error”. This is a boiler lock-out or fault code that requires the cause to be corrected before normal operation can resume.
Can I fix Remeha Quinta Pro 30–115 wall-hung gas boiler range E:40 myself?
Some external checks may be suitable for the user, but the result depends on the exact model and cause. Use the official manual and arrange service if the code returns.
Should I reset the product after code E:40?
After permitted external checks, press the boiler reset control once. If the code returns, do not repeatedly reset the appliance; arrange professional diagnosis.
When should I arrange a repair?
Contact Remeha support or a suitably qualified Gas Safe registered commercial heating engineer. Provide the full code, exact model, serial number and recent operating history.