Board-level diagnostics for inverter heat pumps showing intermittent faults or poor COP. In Atholl Square this is sandton prime work on inverter heat pump systems, attended within about 40 minutes of dispatch.On Daikin equipment specifically — inverter splits, vrv multi-storey systems and ducted plant — the faults we see most in Atholl Square are refrigerant loss at flare joints and outdoor pcb failure after surge events.Every visit starts with a full diagnostic and a written quote before any part is fitted.Tenant coordination for shared plant. Heat Pump Services bookings in Atholl Square are logged against Block 4 so we can allow for power availability on site.
- Typical response window
- 40 minutes from Sandton
- Distance from Sandton CBD
- 3.1 km
- Municipal water hardness
- moderate (140 ppm)
- Load-shedding schedule
- Block 4
- Access & compliance
- Tenant coordination for shared plant.
- Typical installed systems
- Restaurant and deli refrigeration with split HVAC.
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. |
| R32 | HFC (A2L, mildly flammable) | 300-340 kPa at 7 degrees C evaporating | 2 700-3 100 kPa at 45 degrees C ambient | Current-generation inverter splits and heat pumps. |
Common questions
Why is my Daikin unit flashing its indicator light in Atholl Square?
A flashing operation lamp means the board has logged a fault code. Pressing the cancel button on the remote and holding it cycles the code out; U0 points to a low charge, U4 to a communication fault between indoor and outdoor units, and A5 to a freeze or high pressure trip.
Can you work after trading hours?
Yes. Retail, restaurant and office work is routinely scheduled at night or early morning under a permit-to-work so trading is not interrupted.
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.
Is a compressor replacement guaranteed?
Yes. Replacements are done with a system flush and new drier, and both part and workmanship are warranted, provided the original cause of failure is corrected.
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.