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Solar Geyser & Heat Pump Repairs in Cape Town

Reliable hot water starts with proper maintenance. Solar geyser repairs, heat pump repairs, servicing and preventative maintenance for homes and suitable commercial properties — assessed before we recommend any work.

  • 20+ yearsIndustry experience
  • FreeOn-site assessment
  • Solar & Heat PumpRepairs, service, maintenance
  • Cape TownMetro-wide service

Is your solar geyser leaking, producing brown water, failing to heat properly or using more electricity than usual? Is your heat pump making unusual noises or struggling to supply enough hot water?

GreaseFlow Solar Water Heating provides solar geyser repairs, heat pump repairs, servicing and preventative maintenance for homes and suitable commercial properties in Cape Town and surrounding areas.

Our aim is to identify problems, explain the available solutions and help keep your hot water system operating safely and reliably. With over 20 years of industry experience, we assist customers with existing solar water heating systems, domestic hot water heat pumps and compatible geyser installations.

Whether you need an urgent repair or want to arrange an annual service, our team can assess your system and recommend the appropriate work.

Solar geyser repairs

Our solar geyser repair services

Solar geysers contain storage tanks, collectors, valves, pipework and control components that must work together correctly. Faults in any of these areas can affect hot water supply, system performance or safety.

Solar geyser not heating properly

If your water is not getting hot enough, the problem could be related to solar exposure, a circulation fault, a pump, a controller, a heating element or another component. Our assessment may include checking the collector, circulation arrangement, controls and backup heating system, depending on the installation.

Leaking geysers and pipework

Leaks can occur around valves, fittings, connections, pipework or the geyser tank itself. A leaking tank may require replacement, while some leaks can be resolved by repairing or replacing a suitable component.

Water and electrical supplies may need isolation where safe

Solar circulation problems

Some systems rely on natural thermosyphon circulation, while others use a pump. Possible causes include a faulty pump, air in the circuit, obstructed pipework, incorrect installation or a control fault. We identify the system type and its circulation method before recommending corrective work.

Geyser anode replacement

Many storage geysers contain a sacrificial anode designed to protect the tank against corrosion. Over time the anode can become depleted and may need replacement. A depleted anode can reduce the protection available to the tank — we assess it and recommend replacement at the appropriate service interval.

Inspect where accessible — replace at the right interval

Brown or discoloured hot water

Brown or discoloured hot water may be associated with corrosion, sediment or other water-quality problems. The cause should be investigated rather than assuming every case is an anode problem. If discolouration also affects cold water, or the water has an unusual smell or appearance, the supply itself may need investigation.

Faulty valves and pressure-related problems

Solar geyser installations use valves and safety devices designed to manage water flow, pressure and temperature. A leaking pressure-control valve, faulty vacuum breaker or other defective component may require replacement. Safety valves must never be blocked, removed or bypassed to stop a leak.

Solar collector and roof installation problems

Collectors, mounting structures, insulation and exposed pipework are affected by weather and environmental conditions. We inspect accessible parts of the installation for leaks, damaged insulation, loose components, visible corrosion and other signs of deterioration. Any roof work must be carried out with appropriate access and safety precautions.

Safety note: If a geyser is leaking, the water and electrical supply may need to be isolated where it is safe to do so. Do not touch wet electrical equipment or attempt repairs on a pressurised system.

Heat pump repairs

Our heat pump repair services

A domestic hot water heat pump uses energy from the surrounding air to heat water. If the unit develops a fault, it may take longer to heat the water, stop operating or use more electricity than expected. GreaseFlow Solar can assess common heat pump problems and recommend suitable repairs.

Common heat pump problems we investigate

  • Heat pump not producing hot water.
  • Water taking too long to heat.
  • Unusual operating noise or vibration.
  • Error codes or control faults.
  • Fan or circulation problems.
  • Visible water leaks around connections.
  • Reduced heating performance.
  • Repeated shutdowns or irregular operation.

The cause may involve the electrical supply, controller, fan, pump, heat exchanger or another component. Refrigerant-system faults require appropriately qualified and authorised personnel. We assess the fault before recommending repair, component replacement or a new unit where necessary.

Solar geyser maintenance

Preventative maintenance for solar geysers

Preventative maintenance helps identify developing problems before they lead to unexpected breakdowns, water damage or loss of hot water. A solar geyser should be serviced according to its manufacturer's instructions, system design, operating conditions and local water quality.

What may be included in a solar geyser service?

Depending on the system and the agreed scope of work, our inspection may include:

  • Inspecting the geyser and accessible pipework for leaks.
  • Checking visible corrosion and signs of deterioration.
  • Inspecting the sacrificial anode where fitted and assessing whether it needs replacement.
  • Checking accessible valves and safety components.
  • Inspecting solar collector mounting and visible pipe insulation.
  • Checking the circulation pump and controller on pumped systems.
  • Assessing the condition of the backup heating element and controls where applicable.
  • Inspecting accessible electrical connections within the technician's authorised scope.
  • Assessing whether tank flushing or sediment removal is appropriate.
  • Testing system operation and recording any faults identified.
  • Providing recommendations for repairs and future maintenance.

Not every system requires every procedure at every visit. The final checklist depends on the equipment, manufacturer requirements and the condition of the installation.

Heat pump maintenance

Preventative maintenance for heat pumps

Regular heat pump maintenance can help preserve performance and identify problems early.

A service may include

  • Inspecting the unit's external condition.
  • Checking the air inlet and outlet for obstructions.
  • Cleaning accessible filters or heat-exchanger surfaces where appropriate.
  • Checking fan operation and unusual noise.
  • Inspecting accessible pipework and water connections for leaks.
  • Checking visible insulation and signs of corrosion.
  • Inspecting controls and electrical components within the technician's authorised scope.
  • Checking circulation and system operation.
  • Reviewing reported hot water performance.
  • Recording findings and recommending necessary repairs.

Maintenance must follow the manufacturer's instructions. Refrigerant handling and specialised electrical work must be performed by appropriately qualified and authorised personnel.

Annual maintenance plan

Our annual preventative maintenance plan

Protect your investment with a planned maintenance routine from GreaseFlow Solar Water Heating. Our annual preventative maintenance service is intended to help customers monitor the condition of their solar geysers and heat pumps, identify wear and arrange necessary maintenance before faults become more serious.

Register your system

Contact us with your name, property address and the type of hot water system you have.

Arrange your service

We arrange a suitable appointment to inspect and service the system according to the agreed scope.

Receive a service report

We record the findings, explain any problems identified and recommend repairs or component replacement where necessary.

Plan your next service

We help you keep track of the next recommended maintenance date and contact you when your next service is due, subject to your registration and contact preferences.

Why schedule regular maintenance?

  • Helps identify wear and deterioration.
  • Provides an opportunity to inspect the anode where fitted.
  • Helps detect leaks and visible corrosion.
  • Supports reliable system operation.
  • Helps customers plan repairs and maintenance expenses.
  • Provides a record of the system's condition over time.

Preventative maintenance cannot guarantee that a system will never fail, but it can help identify issues that may otherwise go unnoticed.

Want a reminder? Register your system and we'll help you keep track of your next service.

Join the Maintenance Plan

Why GreaseFlow

Why choose GreaseFlow Solar for repairs and maintenance?

GreaseFlow Solar Water Heating understands the importance of a reliable hot water supply for everyday living. We focus on diagnosing the problem, explaining the available options and recommending work appropriate to the system.

  • Solar geyser fault finding and repairs.
  • Heat pump repairs and servicing.
  • Geyser anode inspection and replacement.
  • Inspection of valves, pipework and visible leaks.
  • Preventative maintenance.
  • Existing system assessments.
  • Repair and replacement recommendations.
  • Service reports and future maintenance planning.

With over 20 years of industry experience, we aim to provide professional service and practical advice to homeowners and suitable commercial customers in Cape Town and surrounding areas.

Warning signs

When should you call a professional?

Contact a qualified professional if you notice any of the following:

  • A leaking geyser or water pooling around the installation.
  • Hot water that suddenly becomes cold or inconsistent.
  • Brown or discoloured hot water.
  • A heat pump that stops operating or repeatedly shuts down.
  • Unusual noises, burning smells or visible electrical damage.
  • A leaking valve or signs of corrosion.
  • A noticeable change in system performance.

If there is an immediate electrical or pressure-related safety concern, keep away from the equipment and seek professional assistance. Do not open a geyser, remove a safety valve or work on live electrical components yourself.

Common questions

Repairs & maintenance FAQs

How often should a solar geyser be serviced?

The recommended interval depends on the manufacturer, system design, water quality and operating conditions. We can assess your installation and advise on an appropriate preventative maintenance schedule.

Does my solar geyser need a new anode every year?

Not necessarily. Anode replacement depends on the type of anode, manufacturer recommendations, water conditions and the anode's actual condition. We inspect it where accessible and recommend replacement at the appropriate interval.

Why is my hot water brown?

Possible causes include corrosion, sediment or water-supply issues. We can inspect the hot water system to help identify the cause. If both hot and cold water are discoloured, the incoming supply may also need investigation.

Can you repair an existing solar geyser installed by another company?

We can assess existing systems, subject to the equipment, installation condition and work required. The assessment determines whether repair, component replacement or a different solution is appropriate.

Should I repair or replace my heat pump?

That depends on the fault, the unit's age and condition, repair costs, component availability and the efficiency of a replacement. We assess these factors before recommending a course of action.

Does preventative maintenance prevent every breakdown?

No. Regular servicing can help identify developing problems, but components can still fail unexpectedly. Maintenance is a way to manage risk and monitor system condition, not a guarantee against breakdowns.

See all FAQs →

Request a repair or service

Book a repair or maintenance service

Experiencing a hot water problem, or is your solar geyser or heat pump due for a service? Contact GreaseFlow Solar Water Heating to arrange an assessment and receive a quotation for the required work.

Request a repair or service

We'll reply on WhatsApp within a few hours during business hours.

Urgent water leak?

If there is an active leak, isolate the water and electrical supply where it is safe to do so, and call us directly on 063 062 2817.