I had a Remeha 18V installed just over a year ago and it has behaved impeccably. However it sometimes does strange things.
The one which I can't understand is when it turns off and you see a 5 appearing (I have changed the display so that it shows the operation state rather than just one or two dots.)
According to the manual a 5 means:
a control stop from 3 till 10 minutes and appears if the set flow temperature (t1) has already been reached and the heating demand still exists.
Last night I happened to check the boiler temperatures etc via the control panel. The flow showed 70C, return 55C and the output was at maximum. The boiler then stopped and a 5 appeared. The flow temp started to drop and, within less than a minute, was down to about 35C.
What I can't understand is why the boiler didn't just modulate down to maintain the required flow temp instead of turning off.
I know it wasn't the room stat turning the boiler off as that would produce a code 6 - pump overrun.
Has anyone else come across this or can someone give an explanation for this behaviour? It doesn't seem logical.
The one which I can't understand is when it turns off and you see a 5 appearing (I have changed the display so that it shows the operation state rather than just one or two dots.)
According to the manual a 5 means:
a control stop from 3 till 10 minutes and appears if the set flow temperature (t1) has already been reached and the heating demand still exists.
Last night I happened to check the boiler temperatures etc via the control panel. The flow showed 70C, return 55C and the output was at maximum. The boiler then stopped and a 5 appeared. The flow temp started to drop and, within less than a minute, was down to about 35C.
What I can't understand is why the boiler didn't just modulate down to maintain the required flow temp instead of turning off.
I know it wasn't the room stat turning the boiler off as that would produce a code 6 - pump overrun.
Has anyone else come across this or can someone give an explanation for this behaviour? It doesn't seem logical.