Incidents And Solutions - Vivadens MCR 24/28 BIC PL User Manual

7. Troubleshooting
7.2

Incidents and solutions

Problem
There is no domestic hot water.
The radiators are cold.
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
29
Probable causes
The boiler is not switched on.
The DHW mode is deactivated.
The water pressure is too low (<
1 bar).
The energy-saving shower head is
restricting the water flow.
The heating temperature setting is
too low.
The heating mode is deactivated.
The radiator valves are closed.
The boiler is not switched on.
The water pressure is too low (<
1 bar).
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. Top up the installation with water. ¼See chapter:
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.
Solution
Check that the boiler is switched on.
4
Check the fuses and switches.
4
Check that the gas valve is fully opened.
4
Activate the DHW mode.
Top up the installation with water. ¼See chapter:
"Filling the system", page 23.
Clean the shower head; replace if necessary.
Increase the value of parameter p1 or, if a room
thermostat is connected, increase the temperature.
Activate the heating mode.
Open the valves on all radiators connected to the
heating system.
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. ¼See chapter:
"Filling the system", page 23.
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. ¼See chapter:
"Filling the system", page 23.
Press the Reset button for 2 seconds.
4
Correct the error if possible. ¼See chapter:
4
"Error codes", page 27.
Open the gas valve.
"Filling the system", page 23.
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.
MCR 24/28 BIC PLUS
170915 - 300024112-001-06