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6.2 Incidents and solutions
Problem Probable causes Solution
There is no domestic hot water.
The boiler is not switched on.
4 Check that the boiler is switched on.
4 Check the fuses and switches.
4 Check that the gas valve is fully opened.
The DHW mode is deactivated.
Activate the DHW mode.
¼See chapter: "Stopping domestic hot water
production", page 16.
The water pressure is too low (<
1 bar).
Top up the installation with water. ¼See chapter:
"Filling the system", page 20.
The energy-saving shower head
is restricting the water flow.
Clean the shower head; replace if necessary.
The radiators are cold.
The heating temperature setting
is too low.
Increase the value of parameter p1 or, if a room
thermostat is connected, increase the temperature.
¼See chapter: "Changing the heating
temperature", page 13.
The heating mode is deactivated.
Activate the heating mode.
¼See chapter: "Stopping the central heating or
activating the Summer mode", page 15.
The radiator valves are closed. Open the valves on all radiators connected to the heating
system.
The boiler is not switched on.
4 Check that the boiler is switched on.
4 Check the fuses and switches.
4 Check that the gas valve is fully opened.
The water pressure is too low (<
1 bar).
Top up the installation with water. ¼See chapter:
"Filling the system", page 20.
The boiler is not working.
The heating temperature setting
is too low.
Increase the value of parameter p1 or, if a room
thermostat is connected, increase the temperature.
¼See chapter: "Changing the heating
temperature", page 13.
The boiler is not switched on.
4 Check that the boiler is switched on.
4 Check the fuses and switches.
4 Check that the gas valve is fully opened.
The water pressure is too low (<
1 bar).
Top up the installation with water. ¼See chapter:
"Filling the system", page 20.
An error code appears on the
display.
4 Press the Reset button for 2 seconds.
4 Correct the error if possible. ¼See chapter:
"Error codes", page 25.
The gas pressure is too low. Open the gas valve.
The water pressure is too low
(< 1 bar).
Not enough water in the
installation.
Top up the installation with water. ¼See chapter:
"Filling the system", page 20.
Water leak. Contact the fitter.
Significant variations in
domestic hot water
temperature.
Insufficient water supply. Open the valve.
MCR 24 MCR 24/28 MI MCR 30/35 MI MCR 34/39 MI 6. Troubleshooting
160513 - 300015874-001-01
26
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  • How to resolve error: A0206 on mcr-s 24/28 mi boiler model? Submitted on 10-1-2023 at 07:27

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  • my water , heating system all failed, display doesnot work, i did not see fire also, my on off buttom also pushed, only machine running sound comes, rest nothing working. Submitted on 22-11-2019 at 02:01

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  • My heating not working , i think not fire there, i want to see video to check the system Submitted on 22-11-2019 at 01:10

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