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Plumberpro
Plumberpro, Home Appliance Technician
Category: Appliance
Satisfied Customers: 634
Experience:  Heating and hot water heating appliances experienced
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I have a Danfoss Randall TP9000 thermostat & hot water timer. I

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I have a Danfoss Randall TP9000 thermostat & hot water timer.
I cannot seem to programme the hot water on / off times.
After pressing PROG, setting new times, and PROG again, the new times are not saved and I am back to square one.
The display also has the next day flashing as well as the steady day display.
Any ideas please ?
Plumberpro
Hi , you should be pressing next after prog ,and adjusting .
So prog
Use arrows to adjust temp , plus or minus to adjust time, then press next
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Customer: replied 2 years ago.

That has worked for changing times for the heating.

But for the hot water, I have been pressing PROG, changing the time for the first time event, pressing NEXT to move to the next event and so on, then pressing PROG.

But when pressing PROG again to check the changes have been saved, the original times are displayed.

Also, pressing PROG for the hot water (tap icon) only moves me forward when I have pressed MODE and the wavy line appears.
hi , have you tried resetting the unit first ? Under the flap is a small hole , push in a small non metallic object to reset . then try again
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Customer: replied 2 years ago.

Yes, I have already tried that.

Hi , your unit must have developed acfault as you are doing it correctly .
If you replace it with the same model you can replace the front unit without replacing or changing the wiring backplate
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