Vaillant F.60 fault codewhat it means and how to fix it
On an ecoMAX or the first 2004 ecoTEC, the positive side of the gas valve control has faulted — loom, valve coils or board. On a turboMAX plus, F.60 is simply "electronic fault".
Take care
Get a Gas Safe registered engineer to look at your Vaillant F.60
We do not pass enquiries to a repair firm, so there is no form here. Find a Gas Safe registered engineer through the Gas Safe Register, and ask to see their registration card when they arrive — it is the register, not the van, that tells you they are qualified.
What F.60 means
F.60 is a code with two lives. In the ecoMAX 600 and 800 series manual, and in the very first 2004 edition of the ecoTEC servicing instructions, it is "gas-valve control + defective", printed as a pair with F.61 "gas-valve control – defective", and both rows carry the same cause list: "short circuit/earth (ground) leak in cable loom to gas valves, gas valve assembly defective (earth/ground leak from coils), electronic control system defective".
The board drives the gas valve's coils through two monitored lines, and the plus and minus codes tell an engineer which line has failed its check. From the 2005 edition onward Vaillant dropped F.60 and kept a single F.61, "gas-valve control defective", which is the row every later ecoTEC prints, so an ecoTEC showing F.60 is one of the earliest boilers of the range.
On the turboMAX plus and the thermoCOMPACT ../2 E, which share a manual, F.60 is listed only as "electronic fault — electronics defect", one of four such rows (F.60, F.61, F.67 and, differently worded, F.63) that all end at the printed circuit board. Whichever boiler you have, the boiler has stopped because it cannot trust its own control of the gas valve, and that is a gas-carrying part inside the case. There is no householder step beyond one reset, and the age of every boiler that prints this code — twenty years at the youngest — is part of the repair conversation.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| Earth leak or short in the gas valve loom | Vaillant's first cause. Insulation chafed where the loom passes the combustion chamber, or a plug wet from a leak, lets one of the two control lines read wrong. | Common |
| Gas valve coils shorted to earth | The second cause on the ecoMAX and 2004 ecoTEC: the solenoid windings inside the valve assembly have broken down to the valve body. | Occasional |
| Control board fault | The third cause on the condensing ranges and the only one the turboMAX plus prints. On a boiler this old the board is often obsolete. | Occasional |
Can you fix it yourself?
Stop — this needs an engineer
What it costs to fix
Typical repair cost
£80–£450
Time on site
1 hour
A diagnostic visit is £80 to £120. A cable harness £120 to £200 fitted; a gas valve £250 to £350; a control board, where one can still be found, £300 to £450.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Parts you may need
We may earn a commission if you buy a part through one of these links. It does not change what you pay, and it does not affect which parts we list.
Vaillant ecoTEC gas valve
0020053968£110–£210Authorised Vaillant parts distributor
Price checked 28 September 2026
Vaillant main PCB (electronics box)
£160–£340Authorised Vaillant parts distributor
Price checked 28 September 2026
Vaillant wiring harness (plug-and-cable set to a sensor or actuator)
£20–£65Authorised Vaillant parts distributor
Price checked 28 September 2026
Own this appliance and had this code? . Nothing is published until a person has read it.
Related Vaillant fault codes
- F.62Stop — call an engineerThe gas valve is not shutting off when the boiler tells it to. This is a gas safety fault and the boiler must not be used until an engineer has seen it.Related: gas valve and supply
- F.61Get it checkedThe gas valve control circuit has faulted. The boiler will not fire and this is firmly an engineer's job.Related: gas valve and supply
- F.53Get it checkedThe gas is not flowing through the valve the way the boiler expects. Vaillant's list runs from low gas pressure to a wet or blocked filter under the venturi cap.Related: gas valve and supply
- F.54Get it checkedA gas supply fault, usually shown alongside F.28 or F.29. It means gas is reaching the appliance at too low a pressure.Related: gas valve and supply
- F.26Get it checkedVaillant call this "fuel valve not working": the stepper motor that drives the gas valve is not responding, so the boiler cannot open the gas and will not light.Related: gas valve and supply
- F.42Get it checkedA fault with the coding resistor, the small component that tells the board which gas the boiler is set up for. The boiler will not run until it knows.Related: gas valve and supply
Own a Vaillant boiler? Save it and its codes come first next time.
Related guides
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer technical and service documentation
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.