Understand the problem.
Take the right step.

Boiler needs frequent refilling · Boiler pressure drops · Boiler water leak

Note how quickly the pressure falls and where any visible leak appears. Repeated refilling does not resolve the cause. Share the brand, model and any fault code when requesting a service assessment.

Water stays cold · No hot water at the tap · Water alternates hot and cold

Explain whether all taps or only one tap is affected. Tell the service team whether the radiators work and whether the water remains cold or its temperature fluctuates.

Boiler does not heat · Cold radiators · Home stays cold

Check the heating mode and room thermostat demand. Explain whether every radiator or only some are affected. A service assessment considers both the boiler and the heating system.

Boiler will not fire · Boiler does not work · Boiler switches itself off

Note whether the display is on and record any fault code. Do not dismantle combustion or gas components. For a recurring fault, seek technical support rather than repeatedly resetting the appliance.

High boiler pressure · Pressure rises while heating · Water beneath the boiler

Explain whether the change happens while the appliance is cold or during heating. Correct values and checks depend on the model. Follow the manual and service guidance if pressure is high or water is discharged.

Boiler hums · Boiler rattles · Boiler vibrates

Describe whether the noise occurs at start-up or continuously, and whether it changes during hot water or heating use. A brief recording may help the service team; noise alone does not identify a failed part.

Boiler error · Red warning light · Boiler requests a reset

Share the exact code, brand and model. The same code may mean different things on different appliances. Use the model manual; a confirmed diagnosis or part quote requires assessment.

Radiator heats unevenly · One radiator stays cold · Does the system need cleaning?

Valve settings, circulation and system condition are considered together. Cleaning is not automatically the answer to every cold radiator. Share how many are affected and the last maintenance date.

Slow heating · Boiler runs continuously · Home does not warm up

Share room temperature, thermostat setting and affected radiators. Heating time also depends on the room and heating system; it is not determined by the boiler alone.

Low hot water flow · Weak hot water pressure · Weak hot shower

Explain whether one tap or all hot water outlets are affected. Tap water flow and the boiler heating pressure gauge measure different things. The tap, pipework and appliance may need assessment together.

Boiler starts frequently · Boiler cycles rapidly · Frequent ignition

Note the operating mode and approximate interval. Stopping does not always indicate a fault; repeated short runs require assessment of settings and operating conditions.

Thermostat will not start the boiler · Thermostat connection issue · Temperature demand ignored

Share the thermostat model and display message. Wired and wireless systems require different checks. Consult the model manual for settings without interfering with gas or electrical connections.

Warm radiators in summer mode · Radiators heat during hot water use · Heating does not stop

Distinguish a powered-off boiler from summer mode. Explain whether radiators warm during hot water use. This symptom alone does not establish that a particular part needs replacement.

Annual boiler maintenance · Boiler issue after maintenance · Boiler maintenance cost

Share the last maintenance date, work performed and any new symptom. Ask which checks are included and whether repairs or parts are quoted separately.

AC does not cool the room · AC runs without cooling · Is the refrigerant low?

Check cooling mode, temperature setting and airflow. Lack of cooling alone does not prove low refrigerant. Tell the service team how the indoor and outdoor units operate and when the issue began.

AC will not blow warm air · Cold air in heating mode · Poor winter heating

Check heating mode and the selected temperature. Some units temporarily pause airflow at start-up or during defrosting. Persistent poor performance requires assessment of the appliance and outdoor conditions.

AC drips indoors · Water beneath the unit · Is the drain blocked?

Specify whether water enters the room from the indoor unit or leaves the outdoor drain line. These are different situations. Stop using the unit if water approaches electrical parts and request drainage and installation checks.

Bad smell from AC · Musty AC smell · Does my AC need cleaning?

Note whether the smell appears at start-up or continuously. Filters, indoor unit and drainage condition may need assessment. Stop using the appliance and contact the service team if you notice a burning smell.

AC hums · Noisy outdoor unit · AC rattles

Identify whether the noise comes from the indoor or outdoor unit. Its duration, strength and relation to operating mode help assessment. Ask for installation and appliance checks for a new, pronounced noise.

AC does not work · Remote does not work · AC light flashes

Check the remote batteries, selected mode and any display or indicator message. Share the flashing pattern and model. Do not dismantle electrical connections or the circuit board.

AC does not blow air · Indoor unit freezes · Is the filter blocked?

Check whether airflow is obstructed and note filter maintenance. Do not scrape ice away. For persistent weak airflow or icing, share the operating conditions with the service team.

AC removal and installation · AC relocation · Used AC installation

Share the current and new locations and photographs of both units. Pipework, power, drainage and access affect the work and quote. Agree on removal and reinstallation scope beforehand.

AC stops after a short time · AC cycles on and off · AC shuts down automatically

Check timer settings and operating mode. Note time before shutdown, indicators and airflow. Request assessment if the problem continues with normal settings.

Outdoor unit does not start · Outdoor fan does not turn · AC compressor does not run

Distinguish fan-only mode from cooling or heating. The outdoor unit may stop during some operating stages. Report unexpected prolonged stops, fault codes and loss of performance.

AC error code · Error on AC display · AC indicators flash

Send a photograph of the code and flashing indicator with the brand and model. Meanings depend on the appliance. A code alone does not establish a need for refrigerant charging or board replacement.

AC flap does not move · Swing does not work · Airflow direction is fixed

Check the remote airflow direction setting and describe louvre movement. Do not force it by hand. A direction-control problem is different from a fan that produces no airflow.

Outdoor unit drips · Outdoor unit freezes · AC enters defrost mode

Specify heating or cooling mode. Water may appear during heating and defrosting; this differs from indoor leakage. Report persistent ice build-up and loss of performance.

Is the AC capacity sufficient? · What BTU size do I need? · AC relocation price

Share room size, sun exposure, insulation and current capacity. Floor area alone does not determine the correct size. Relocation also requires assessment of pipework, drainage, power and access.