Mora Czech-made water heating and heating equipment brings warmth and comfort to the homes of many users. The devices are designed for a long service life, during which breakdowns can occur. The gas boiler "Mora" is prone to malfunctions, so we will outline the typical problems of the brand. You will learn how to deal with breakdowns yourself.
Operational Features
A wide range of products allows even the most demanding buyer to choose equipment to taste. "Mora" represents wall-mounted, cast-iron boilers, powered by gas, electricity, combined, indirect heating.
Let us dwell on gas single-circuit and double-circuit boilers. Mora Top is presented in three variations:
- Meteor line. These are double-circuit flow-type boilers. The removal of combustion products is carried out forcibly, as is the injection of combustion air. Models are equipped with a modulated flame burner.
- Series "Titan". Normal open combustion chamber. A chimney is required. Security sensors installed. The Anti-freezing mode is built-in: when the temperature drops to +5 degrees, heating is triggered.
- The Sirius line. This is a comprehensive technique. Here you will find single-circuit and dual-circuit models, with open and closed cameras. Economically consume electricity - not more than 1-2 kW.
In the event of a malfunction, the error code appears on the Mora Top display. Its value indicates the cause of the breakdown.
Error codes for gas boilers Mora
If you notice a code on the display, reboot the equipment. Did the characters light up again on the screen? Then proceed to search for the causes of their appearance.
Malfunction code | Value | Reason for occurrence | DIY repair |
E0 | The technique does not work. |
|
|
E1 | The boiler is not functioning. The switch does not close. | There is not enough water in the system:
| What to do:
|
Error E2 | Burner extinguishing. |
| Turn on the gas tap. Then press RESET. Diagnose and clean / replace:
|
E3 | The temperature sensor is open. The equipment does not work on hot water and heating. | Incorrect operation of the heating temperature sensor. | Monitoring the wiring status of the sensor. Its connections to the control board. Installing a healthy item |
E4 | The contacts of the DHW temperature sensor are open. | Actions are similar to E3. | |
E5 | Problems with the security module. |
|
|
For Electra Mora models, the following codes are characteristic:
- 01 - pressure reduction.
- 02 - the system is overheating.
- 03 - reserve.
- 04 - the thermostat is faulty.
- 05 - EEPROM memory block does not work correctly.
- 06 - RAM + RTC memory failure.
- 07 - problems with management.
These problems are resolved by checking and repairing the components. There are other errors that indicate minor issues:
- 08 - the boiler is operating as usual, everything is fine.
- 09 - DHW temperature sensor is out of order.
- 10 - an external thermometer failed.
- 11 - cascade line is broken.
- 12 - the modem gives a bad signal.
- 13 - insulation of the heaters is damaged.
In case of minor breakdowns of the Mora Proxima and other models, the ALM LED diode with a frequency of 1 Hz blinks on the panel. In this case, the technique works, but with failures.
Serious malfunctions are indicated by a steady light on the yellow LED ALM light bulb. The heater does not work, all functions are disabled.
Other issues
During operation, there are malfunctions that are not displayed, their description can not be found in the instructions. Therefore, we will tell you what to do in a similar situation:
- Control LED does not light on the panwhether. Make sure that power is supplied to the part. Install a working light bulb or switch.
- Heater does not start. The ignition electrode does not work, the circuit is broken. Check the contact density between the electrode and VN output. If you hear sparking sounds during startup, check the connection to the ignition and ground wires.
- Burner runs 50 seconds. Problems with fuel supply. Diagnose the valve, remove the accumulated air.
- The burner ignites and goes out. At the same time, "unlocking" is lit. The nozzle diameter is not in accordance with the instructions. The gas supply is shut off. Clean or install new nozzles.
- Safety valve does not allow start-upk. The diode (insufficient heating) lights up on the panel. Add water to the system.
- No DHW heating. The three-way valve is broken. Replace it.
- There is no heating in the boiler, which is connected to the boiler. Adjust the temperature, diagnose the temperature sensor, and replace if a malfunction occurs.
- Smoke fuse lock. Clean the chimney duct (sometimes gusts of wind interfere with normal operation). Release the fuse lock by holding the TS button of the network module.
We hope our recommendations will help you restore the boiler and enjoy warmth and comfort again.