Conversion of electric geysers to heat pump hot water, sized for the property and its water quality. In Carlswald this is corporate & commercial work on retrofit conversion systems, attended within about 75 minutes of dispatch.On Midea equipment specifically — value inverter splits, cassettes and hot water heat pumps — the faults we see most in Carlswald are four-way valve sticking in heating mode and outdoor fan capacitor failure.Every visit starts with a full diagnostic and a written quote before any part is fitted.Estate and complex pre-authorisation. Heat Pump Services bookings in Carlswald are logged against Block 16 so we can allow for power availability on site.
- Typical response window
- 75 minutes from Midrand & Waterfall Corridor
- Distance from Sandton CBD
- 19.5 km
- Municipal water hardness
- hard (195 ppm)
- Load-shedding schedule
- Block 16
- Access & compliance
- Estate and complex pre-authorisation.
- Typical installed systems
- Estate homes with inverter systems.
Refrigerant data
| Gas | Classification | Suction pressure | Discharge pressure | Typical use |
|---|---|---|---|---|
| R410a | HFC blend (A1) | 280-320 kPa at 7 degrees C evaporating | 2 600-3 000 kPa at 45 degrees C ambient | Most inverter splits, ducted systems, VRV/VRF and heat pumps installed since 2005. |
| R134a | HFC (A1) | 80-140 kPa at -5 degrees C evaporating | 900-1 200 kPa at 45 degrees C ambient | Wine cellars, display cabinets, medium-temperature commercial refrigeration and some heat pumps. |
Common questions
My Midea unit heats but will not cool. What is wrong in Carlswald?
That points to the four-way reversing valve sticking or its solenoid coil failing. It can often be freed and the coil replaced without opening the sealed system.
Do you charge a callout fee?
A standard callout and diagnostic fee applies and is quoted upfront. It is credited against the repair when you accept the quote.
Do you top up gas without finding the leak?
No. A weighed charge into a leaking system is money out the window, so the leak is found and repaired first, then the system is evacuated and charged to the plated weight.
What does an annual service contract include?
Scheduled visits, priority response between visits, a written condition report per unit and fixed labour rates for the contract year.
Request a callout or quote
Send it straight to our WhatsApp for the fastest response, or call 069 268 0988 / email info@reyds.co.za.