F61On Vaillant boilers, fault code F.61 means: Gas valve fault. Do not keep resetting or using the boiler. Switch it off and call a qualified gas engineer. If you smell gas, leave the building and call the gas emergency number.
Can I keep using the boiler?
Do not keep resetting or using the boiler. Switch it off and call a qualified gas engineer. If you smell gas, leave the building and call the gas emergency number.
Common causes
- Faulty gas valve
- Damaged wiring or a loose/corroded connector
- Faulty control or motor board
How to fix it
- If you smell gas: don't use switches, open windows, close the gas valve and call the gas emergency line
- Have a qualified gas engineer inspect the boiler; never open gas or flue parts yourself
Frequently asked questions
What does Vaillant error F.61 mean?
On Vaillant boilers, fault code F.61 means: Gas valve fault.
How do I fix Vaillant error F.61?
Start with these steps: If you smell gas: don't use switches, open windows, close the gas valve and call the gas emergency line; Have a qualified gas engineer inspect the boiler; never open gas or flue parts yourself.
Is it safe to use the boiler with fault F.61?
Severity: High. Do not keep resetting or using the boiler. Switch it off and call a qualified gas engineer. If you smell gas, leave the building and call the gas emergency number.