Do i have a faulty programmer

[Matt]

My programmer keeps clicking on and off really really quickly, however, I still have hot water and central heating. Does that sound like a faulty programmer or something different

[alan_m]

Faulty three port valve?

[Roger Mills]

If it's *just* a programmer, it's definitely faulty - that should only switch on and off 2 or 3 times a day. If it's a programmable thermostat, it may be configured wrongly. You can normally specify the minimum on and off times. Which is it?

[Matt]

my programmer clicks on and off at the set times twice per day. But once on, it clicks away rapidly

[ARW]

A make and model of programmer might help.

But best guess is that the programmer has a loose conection or is shagged.

[Ian]

Had exactly that problem with a 20-year old Potterton EP3000. Replaced the main smoothing cap and it's as good as new (old cap was way low, guess too much ripple was making it continually reset).

[tabbypurr]

Do you wake up and go to sleep at odd random times? Are you hot when you'd expect to be cold, and cold when you'd expect to be hot?

NT

[ARW]

So the OP has nothing wrong with the CH and has the menopause?:-)