Do you have the Oasis gas boiler installed? Then it will be useful for you to familiarize yourself with typical malfunctions of this technique. During operation, the components of the device may fail. We’ll show you how to recognize the problem and fix it yourself.
How is the Oasis boiler
Devices of this manufacturer are dual-circuit. This means that the water heater can provide not only hot water in the faucet, but also indoor heating. The heating temperature is from 35 to 60 degrees, the average productivity is 10 liters per minute.
The Oasis equipment runs on natural gas, so it can be installed in houses to which the main is connected.
The boiler is equipped with two heat exchangers. One of them is responsible for providing water for batteries for heating, the other for hot water supply (DHW). Accordingly, fuel consumption and waiting time for heating in summer are reduced.
Combustion products are forced away. A closed chamber and a coaxial chimney ensure automatic and safe operation. For monitoring, flame sensors, gas supply, flow sensors are installed. A safety valve is also provided, which triggers when the pressure rises.
Not without failure control. The equipment is equipped with a self-diagnosis system.In the event of a malfunction, the display shows an error, the meaning of which is indicated in the instructions.
Major malfunctions
What to do if an error is displayed on the scoreboard? How to fix the situation? First you need to decipher the meaning of the characters on the screen, and only after that proceed with the search for breakage.
Error Codes and Solutions
Consider what the symbols that the boiler shows mean.
E1 - problems with ignition, no ignition. What could be the reason:
- No fuel. Turn the shut-off valve, it may not be fully open. If the pressure in the gas line is strong or weak, contact the repair service;
- Weakened, clogged contacts. Check the connections from the control module to the ignition unit. Tighten the wiring. If the contacts are oxidized, strip them and resume connection;
- Bad control board. Diagnosis and replacement is best left to a specialist. But you can independently inspect the part, look for burnouts and damage.
- The ignition electrode does not work. This happens if the part has shifted and is far from the burner. Remove the casing, inspect the elements and return the electrode to its place. In addition, clean it with a metal brush. If after that the burner does not ignite, install a new electrode.
E2 - The fan has been running for 8 seconds, but the pressure switch does not close. What does it mean:
- No traction. Pipe or chimney clogged. To check, light a match and bring it to the control window. The flame deviated to the side - there is a draft, it burns exactly - no.You can bring a piece of paper to the ventilation hole. With normal traction, it will be delayed, and if the passage is blocked, the leaf will fall.
In this case, it is necessary to clean the chimney on its part, and to clean the communal services from the street. Open the combustion chamber. You will see that two tubes are connected to the manostat (pressure regulator), which also need to be cleaned;
- Air relay broken. You can verify the malfunction of the part using a tester;
- Fan does not work. The part is inspected for damage. To it are tubes that could melt and need to be replaced. Then start the boiler and close the contacts of the manostat. If the burner lights up, the manostat is broken; if not, the main unit.
- Electronics Issues. Perhaps the wiring contacts have gone, insulation is broken. All elements are inspected and tightened.
E3 - The inlet temperature sensor for hot water is out of order. Diagnose the sensor and wiring. Replace defective parts.
E4 - the dhw output sensor is broken. Proceed as in the case of E3.
E5 - the heating sensor does not work. Similar actions.
E6 - there is no flame. What to do:
- Repeat start. To do this, open and close the mixer several times until it ignites. Probably, air accumulated inside, which interferes with normal ignition;
- Tighten pins to connectorsmake sure the integrity of the insulation.
E7 - low pressure in the line. What could have caused the problem:
- Too little water. Perhaps one of the connections began to leak.Attach a dry cloth to the joints to make sure there are leaks. Seal the connection, tighten the nuts stronger and eliminate the leak;
- Incorrect pressure set in the distribution tank. It is necessary to adjust the settings as indicated in the instructions for a particular model. During heating, the fluid expands, causing the pressure to rise. Because of this, the safety valve is activated and discharges excess water.
E8 - water overheats. What is the reason:
- Heating valve closed, you need to open it;
- DHW or heating systems overheat. Diagnose the operation of the bypass valve, as well as the degree of flow of hot fluid.
E9 - system pressure is not normal. The pump is broken, so the burner may not ignite.
- Line pressure must be at least 0.1–0.15 bar;
- Remove the pump. Clean its parts from clogging, rinse under running water. Inspect items for damage, especially blades.
- Faulty temperature sensor. Diagnostics and replacement are carried out.
We examined all the errors typical for Oasis gas boilers. In addition, users are faced with a malfunction such as a lack of heating: when the mixer is opened, there is no hot flow. This indicates a turbine failure. It is impossible to repair it, it is better to install a new one.
Before starting work on the equipment, turn off the gas and water supply. If the error code does not disappear from the screen after all efforts, contact a specialist.Do not carry out independent work with the gas main - this is dangerous and can lead to an accident.