Techsun · China

Techsun Heat Pump Repairs in Johannesburg

Techsun heat pump repairs across Gauteng. Common on guest house and complex installations; scale management extends compressor life.

Techsun equipment we work on includes commercial hot water heat pumps. Commonly replaced parts on this brand are heat exchangers, controllers, and we keep or source these against the unit's model and serial plate rather than by guesswork.

Heat pump repairs cover the refrigeration circuit, the electrical control side and the water side of the unit. Most call-outs we attend start as 'no hot water', but the underlying fault is usually a failed capacitor, a blocked evaporator, a defrost sensor out of tolerance, or a slow refrigerant loss that only shows up under load.

Peak draw-off matters more than total daily volume: plant that satisfies a whole day of demand can still fail at a 45-minute shower peak. Sites with long, poorly insulated pipework lose more heat in distribution than most owners expect, which reads as a capacity problem at the outlet.

069 268 0988 info@reyds.co.za

Parts: Heat exchangers, controllers
Turnaround: Most single-unit repairs are completed in one visit when parts are ex-stock.
Call: 069 268 0988

What is included

Scope of work

Compressor, capacitor and contactor testing and replacement
Fan motor, blade and bearing replacement
Refrigerant leak detection, repair and recharge (R410A, R32, R134a)
Reversing valve, TXV and EEV diagnosis
Controller, sensor and PCB fault-finding
Circulation pump, flow switch and non-return valve replacement

Technical detail

Specifications

Typical capacities	3 kW – 120 kW thermal
Refrigerants handled	R410A, R32, R134a, R417A
Supply	220 V single phase and 400 V three phase
Test equipment	Electronic leak detection, clamp meters, digital manifolds
Techsun ranges	Commercial hot water heat pumps

When to call

Symptoms we see on this equipment

Water heats slowly or only to 35–40 °C
Unit runs continuously without reaching setpoint
Ice build-up on the evaporator outside of a defrost cycle
Breaker trips shortly after start-up

Coverage

Techsun Heat Pump Repairs by area

Other Techsun services

FAQs

Frequently asked questions

Are you an authorised Techsun agent?

We are an independent specialist. We repair and maintain Techsun equipment using correct-specification parts, and where a unit is still under manufacturer warranty we will tell you before doing anything that could affect it.

Can you get Techsun parts?

Heat exchangers, controllers for Techsun are ordered against the model and serial plate. Where an original part has a long lead time we will offer a compatible equivalent and say clearly which one is being fitted.

What does Techsun heat pump repairs include?

Compressor, capacitor and contactor testing and replacement, Fan motor, blade and bearing replacement, Refrigerant leak detection, repair and recharge (R410A, R32, R134a), plus verification that the unit performs to the manufacturer's stated figures after the repair.

Where do you service Techsun equipment?

Across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria. Call 069 268 0988 to confirm attendance for your address.

Is it worth repairing an older Techsun unit?

Where the tank or coil has perforated, replacement is usually the honest answer and we will say so on site. Common on guest house and complex installations; scale management extends compressor life.

Techsun heat pump repairs

Serving Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.

069 268 0988 Request a quote