Vaillant Ecotec 824 F62 fault

[jakeycrx]

Hi

My boiler faulted out with the F62 error code. I have reset the boiler and it seems to be OK for now.

Does this error code mean there is definitely a fault with the gas valve or PCB or does it sometimes fault out for voltage spikes etc?

 

[AGAS]

you need a gas engineer my friend and it will won't be cheap either I'm afraid

p.s the fault finding chart is only a guide

 

[jakeycrx]

If it starts happening regularly then I will get it looked at.

Do they ever randomly fault out with that fault code though? I wasn't expecting it to reset to be honest but the fact that it reset has got me hoping it was just a random error.

My information wasn't from the fault finding chart. It was just info I came across after a quick Google.

 

[jakeycrx]

It's not looking good

 

[AGAS]

you can keep resetting it but for how long , you probably don't need both parts .

 

[AGAS]

jakeycrx what part of Gloucestershire are you from ? I'm from your neck of the woods

 

[hertsboilers]

It's not looking good

A part thrower!

 

[jakeycrx]

A part thrower!

He replaced the faulty parts though? He didn't replace anything unnecessarily.

 

[AGAS]

I've never had an f62 and changed both parts

 

[jakeycrx]

I've never had an f62 and changed both parts

Fair enough. I found some expected resistance values for the gas valve:

Pins 1-2 - 34 Ohms
Pins 3-4 - 17 Ohms
Pins 1-4 - 51 Ohms

 

[jakeycrx]

Also this for the PCB:

To test the PCB
In the top left corner of the Printed circuit board find terminal X20
Measure DC voltage across Blue and Red wires with power on
The voltage should be 24V DC and when the gas valve opens after the spark it should go down to 12V

 

[AGAS]

no no no you need a gas engineer

 

[jakeycrx]

I didn't say I was going to check it myself

I've taken out a boiler care plan with no exclusion period but I'll leave it as long as I can. I'll just keep resetting it for as long as possible. Hopefully it lasts a few weeks before it becomes terminal.