Vivadens MCR-P 24 User Manual page 28

6. Troubleshooting
Problem
The boiler is not working.
The water pressure is too low
(< 1 bar).
Significant variations in
domestic hot water
temperature.
Clicking in the central heating
pipes
Significant water leak under or
close to the boiler
27
Probable causes
The heating temperature setting
is too low.
The boiler is not switched on.
The water pressure is too low (<
1 bar).
An error code appears on the
display.
The gas pressure is too low.
Not enough water in the
installation.
Water leak.
Insufficient water supply.
The central heating pipe
connections are too tight.
There is air in the heating pipes.
The water is circulating too
quickly in the central heating
system.
The boiler or central heating pipes
are damaged.
MCR-P 24 MCR-P 24/28 MI MCR-P 30/35 MI MCR-P 34/39 MI
Solution
Increase the value of parameter p1 or, if a room
thermostat is connected, increase the temperature.
¼See chapter: "Changing the heating
temperature", page 13.
Check that the boiler is switched on.
4
Check the fuses and switches.
4
Check that the gas valve is fully opened.
4
Top up the installation with water.
"Filling the system", page 20.
Press the Reset button for 2 seconds.
4
Correct the error if possible.
4
"Error codes", page 25.
Open the gas valve.
Top up the installation with water.
"Filling the system", page 20.
Contact the fitter.
Open the valve.
Contact the fitter.
It is essential that you bleed any air in the calorifier, the
conduits or the taps to prevent the annoying noises likely to
be produced during heating or when tapping water.
Contact the fitter.
Close the water supply. Contact the fitter.
¼See chapter:
¼See chapter:
¼See chapter:
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