Worcesterbosh digistst problem

[DIYnumptyclown]

Hope you can help!

My greenstar 30cdi boiler is controlled by a wireless controller (not sure if it's a DT10 RF or DT20 RF Optimser). The heating switched off at 9pm (actually, I took out the batteries out of the unit) and awoke a 2am to find that the heating was on! When I checked the boiler, there was a flashing ch symbol.

This has happened before when no heating is being demanded but the ch somehow switches itself on.

I've checked around on the internet and wonder if there is radio interference somewhere. Is it possible, that my neighbour's system is controlling mine?

Tonight, I left the controller near my iPhone which was plugged in and charging and recently switched broadband providers. The only way to shut down the heating is to switch it off from the mains.

This is the second time the problem has happened and this is the second unit i've bought as the first one stopped recognising the temperature of the room and so the boiler didn't switch on.

I bought the wireless one for convenience. Should I go back to the mechanical version or get it wired.

Any thoughts appreciated!

 

[MeldrewsMate]

Do you have a frost protection function, a frost 'stat, or an outside temperature sensor which could be activated?

 

[DIYnumptyclown]

Hi, there's a snowflake icon in the boiler I'd that's what you mean. I've never moved the dial to that setting as I thought you used it if you're away bit want to leave the boiler running?

As I'm at work now, I've switched off the boiler just in case it powers up while I'm out.

Thanks for replying.