Equipment Care Guides & Technical Advice

A practical maintenance routine for domestic and commercial heat pumps in Johannesburg conditions.

• — Keep the air path clear
• — Clean the coil annually
• — Check water flow and circulation

The four fault families behind a heat pump that no longer produces hot water, and how each is diagnosed.

• — Refrigerant loss
• — Compressor and electrical faults
• — Controller and sensor errors

How to keep a pool heat pump efficient through a Johannesburg winter.

• — Use a cover
• — Maintain filtration first
• — Watch water chemistry

The drainage and airflow faults behind indoor water leaks, and what to check first.

• — Blocked condensate drains
• — Frozen evaporator coils
• — Installation and levelling

Settings, maintenance and equipment choices that lower HVAC running cost in homes and offices.

• — Set realistic temperatures
• — Keep filters and coils clean
• — Zone the building

A structured checklist for restaurants, hotels and retailers running walk-in cold rooms.

• — Doors, seals and closers
• — Condenser and evaporator condition
• — Defrost cycle verification

First checks when a freezer room starts running warm, and when to call for help.

• — Confirm the reading
• — Inspect the door
• — Check for ice on the evaporator

The causes behind commercial refrigeration losing temperature in busy kitchens and retail floors.

• — Condenser fouling
• — Refrigerant leaks
• — Door seals and loading

Service frequencies for offices, hotels, restaurants and shopping centres, and what each visit should cover.

• — Offices and corporate buildings
• — Hotels and restaurants
• — Shopping centres and retail

Early indicators that a heat pump is developing a fault, before it stops working entirely.

• — Longer recovery times
• — New noises
• — Nuisance tripping