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What does f64 mean on my boiler?

What does f64 mean on my boiler?

A vaillant boiler with an error code F. 64 is related to defective electronics or the flow and return sensors are defective, likely causes of this is Flow or back flow NTC has short circuited, or an electronic fault BoilerOne recommend you consult a gas safe registered engineer to diagnose the problem.

Why is my Glow Worm boiler not working?

There are many potential reasons why there’s no heating or hot water in your home, including broken diaphragms and airlocks, failure of motorised valves, issues with the thermostat or low water levels.

Where is the serial number on a glow worm filter?

*Your 28 digit serial number can be found on the control panel of the boiler and in the benchmark logbook which your installer should have provided you after the installation.

How do I fix error code f72?


  1. Things to check:
  2. Make sure the resistance of the Flow NTC is 12K ohms at 20C (degrees celcius).
  3. Make sure the resistance of the Return NTC is also 12K ohms at 20C (degrees celcius).
  4. You should check the connections from the NTC all the way back to the PCB.

What does F61 mean on a boiler?

The F61 error code means that there is a fault with the gas valve, which can be dangerous and needs addressing immediately. The boiler will have locked out for safety, and you shouldn’t try to restart it.

Why won’t my boiler fire up?

A boiler might not ignite due to various possible reasons – insufficient pressure, blockage in the burner, faulty valves, frozen pipes etc. Sometimes, you can fix the problem on your own. In other cases, you don’t have any choice but to call an engineer.

How old is my boiler Glow-worm?

If it’s more than 10 years old, you might want to replace it. The easiest way to find out the age of my boiler is to look for its serial number. There is a long sequence of digits and letters found printed on the side or on a label.

Where is the GC number on a Glow-worm boiler?

The data badge is positioned at the lower right of the boiler, above the model and serial number plate, visible when the white casing has been removed. Dimensions shown in diagrams are in millimetres.

Why is my boiler not heating my radiators?

If your boiler works but the radiators are not heating up, then likely cause could be a faulty boiler pump or your central heating controls. If your boiler works but the radiators are cold, check that the thermostat or timer is working correctly.

What does F 72 mean on a boiler?

The F72 fault code shows when there is a fault with the flow and/ore return NTC thermistor. It means that the thermistors are providing incorrect readings and that the difference between the two thermistors is consistently too great, causing the boiler to shut off.

What does F22 mean on boiler?

A F22 error code is a common problem, and means that the water pressure on your boiler has fallen, and that it needs to be increased before the system will run again. Its the same as a F1 Error on an Ideal Boiler, but different from the F75 Boiler Fault.

How do you fix F61?

Retrace your speaker wire connections to clear error F61.

  1. Attach the speaker labels to the speaker wires for easier identification, if they’re not already labeled.
  2. Verify that the white ends of each speaker cable are connected to the corresponding “+” positive inputs for each speaker.

How do I fix F62 fault?

You should never attempt to repair the F62 fault code, if you see the F62 fault code you must shut your boiler off immediately and call your local gas safe registered boiler repair engineer.

Why is heating not coming on?

Check your thermostats If the thermostat is set too low, the heating will not come on until the room temperature is lower than the temperature you have set the thermostat to. Turn the thermostat up to its highest setting and see if this resolves the problem.

Can you manually ignite a boiler?

There are two types of boiler pilot lights. One is a manual type that you must light, and the other is an automatic pilot ignition type that lights itself. Before lighting any boiler, you must know which type you have; there are two ways to determine this.

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