Home > categories > Machinery & Equipment > Boilers > Iv got a ferroli optimax he 31c boiler and the code no cm comes up and boiler goes of and makes a funny sound.?
Question:

Iv got a ferroli optimax he 31c boiler and the code no cm comes up and boiler goes of and makes a funny sound.?

Give it a thump at time clock and it comes back on lol

Answer:

That boiler's fault codes are a letter followed by a two digit number. I am not sure what you are talking about. www.ferroli .uk/heating/domesti...
Sorry don't understand question. Is that some sort of text thing your typing?
The thermostat and the timer would desire to artwork at the same time.One wont function the boiler without the different. Its achieveable that the thermostat has been by utilising-handed or incorrectly under pressure out.If its an RF form set up then it must be the battery's interior the stat,yet unlikely if the boiler is responding to the timer on my own.

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