Before Calling a Technician: A Simple Guide to Fixing Common Appliance Issues

2026-11-05

Appliance Troubleshooting: A Pre-Service Checklist

The white goods, boilers, and air conditioners in our homes can sometimes display unexpected error codes or stop working. Most users immediately call a technician when they see a code on the screen or notice the machine isn't functioning. However, based on our experience at Errora, a significant portion of service requests stem from simple issues that homeowners can resolve on their own. In this guide, we will walk you through the essential checks you should perform before reaching out for professional help.

1. Check Your Power Connections

If your appliance is not working at all or seems completely unresponsive, the power supply should be your first point of inspection. Loose outlet connections or a tripped main breaker in your home can often prevent a device from starting.

• Ensure the plug is securely inserted into the outlet.
• Check your home's fuse box to verify that the breaker for the corresponding circuit has not tripped.
• If your appliance is connected via an extension cord, try plugging it directly into a wall outlet to rule out power delivery issues.

2. Inspect Water Inlet and Drainage Lines

Water-related issues are the most common cause of malfunctions in washing and dishwashers. If you see warnings such as "no water" or "drainage error" on the display, the solution is usually found in the external connections.

• Make sure the faucet connected to the machine is fully open.
• Check that the water inlet hose is not kinked or compressed by any objects.
• Clean the filter at the end of the water inlet hose; over time, limescale and sediment can accumulate there and restrict water flow.
• Ensure the drain hose is not bent and is free of blockages.

3. Filter Maintenance: The Key to Performance

Filter clogs in dishwashers and dryer-equipped washing machines can lead to significant performance problems. If your machine is not heating the water or emitting an unpleasant odor, clogged filters are likely the main culprit.

• Remove the filter located at the bottom of your dishwasher and scrub it under hot water on a weekly basis.
• Cleaning the lint filter in dryers after every use not only extends the life of the appliance but also improves energy efficiency.

4. Check Boiler Pressure and Gas Flow

The majority of errors displaying "F" or "E" codes in combi boilers are related to low pressure or gas supply interruptions. If your boiler is not providing heat, follow these steps:

• Check that the boiler's pressure gauge is at approximately 1.5 bar. If the pressure drops below 1 bar, use the water fill valve located at the bottom of the unit to top up the system.
• Test other gas-powered appliances (such as your stove) to determine if there is a broader issue with the gas flow.
• Attempt to restart your boiler by pressing the "Reset" button.

5. Air Conditioner Remote and Mode Settings

If your air conditioner is not cooling or heating, the issue is often not a mechanical failure but rather an incorrect mode setting or a problem with the remote control. Try the following before calling a technician:

• Ensure the air conditioner is set to the correct mode (look for a snowflake icon for cooling and a sun icon for heating).
• Replace the batteries in the remote control; weak batteries can sometimes fail to transmit commands properly.
• Wash the air conditioner's air filters regularly. Clogged filters obstruct airflow and force the unit to work less efficiently.

When Should You Call a Technician?

If you have performed the simple checks above and your appliance is still displaying the same error code or remains non-functional, it is time to seek professional assistance. If you smell a burning odor, notice a water leak, or feel an electrical current from the device's housing, unplug the appliance immediately and contact an authorized service provider without delay.

Remember that periodic maintenance of your appliances significantly reduces the risk of breakdowns. At Errora, you can always refer to our website for technical details and explanations of specific error codes.