Do you repair all Quantum heat pump models?

Yes. We repair and service all Quantum domestic and commercial systems including Compact, Split, and Titan models.

Why is my Quantum unit running constantly but not heating?

Possible causes include low refrigerant, sensor faults, blocked coil or airflow, or a controller issue. We diagnose and fix the root problem.

The PTR valve is dripping — is that normal?

Occasional discharge is normal. Continuous dripping may indicate high pressure or a faulty valve. We test and replace if needed.

Do Quantum heat pumps work in cold weather?

Yes. Quantum systems are designed to operate efficiently down to –10 °C without backup electric boosters.

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Quantum Heat Pump Repairs & Servicing Gold Coast

Gold Coast’s Quantum Hot Water & Heat Pump Specialists

Does your Quantum heat pump system (Compact 150 L, 200 L, 270 L, 340 L, Split, Titan models) struggle with hot water, leak, constant cycling, or strange noises? Todd’s Plumbing & Electrical offers expert diagnostics, repairs and servicing across the Gold Coast for all Quantum models.
Quantum systems are among Australia’s original heat pump brands, designed to operate in climates down to –10 °C without boosters.

📞 Call 0482 080 423 for same-day service
or request a free quote online.

Why choose Todd’s

Specialists in Quantum Energy heat pump systems
Dual-trade (plumbing & electrical) in one visit
Upfront, transparent pricing
Warranty-safe servicing following Quantum’s guidelines
Local, trusted business with 20+ years in hot water systems

Quantum Heat Pump Overview & Specs

Quantum’s domestic heat pumps include Compact 150, 200, 270, 340 & Split 270 / 340 / Titan models
Uses R290 refrigerant, design to run down to –10 °C without needing electric boosters.
Quiet operation: ~ 48 dB in many models
Warranty: 5 years for tank; 2 years for electric & refrigeration components.
Works with modular and manifold systems for larger demand installations

Common Issues with Quantum Heat Pumps & What We Fix

Symptom	Possible Causes	Notes / Checks
No hot water / lukewarm	Sensor/thermostat failure, compressor not starting, refrigerant leak, restricted airflow, timer or supply issue	Check panel, wiring, sensor resistances, airflow around coil
PTR / Relief valve dripping	High pressure/temperature, worn valve, blocked drainage	Test relief, measure pressure, replace valve if required
Frequent running / never stops	Ambient too cold, coil dirty/iced, control or sensor fault	Clean coil, confirm defrost mode, verify controller settings
Noise / vibration	Fan bearing wear, debris, loose mounting, compressor strain	Inspect fan, tighten hardware, clear debris
Fault / error codes	Overtemp, overpressure, sensor or communication fault	Read codes, trace sensor wiring & replace faulty parts
Reduced efficiency / high power use	Dirty coil, scale, partial failure, booster overuse	Flush coil, descale, check heating cycle efficiency

Some Quantum owners report their units running all night, then cutting out of hot water — possible refrigerant loss or thermostat drift.

How Quantum Heat Pumps Work & What We Service

A Quantum heat pump draws ambient air via a fan over the evaporator coil, compresses the heat, and transfers it into the tank water. It may include backup electric heating mode, though many Quantum models are designed to run without electric boosters down to –10 °C.
Key service focus: fan & coil, compressor, sensor & controller, valves, anode, relief / safety devices, drainage / condensate.

Our Repair & Service Process

Diagnosis — error code scan, sensor, electrical & refrigeration diagnostics, airflow inspection
Quote — clear parts and labour options before starting
Repair / replacement — components swapped as needed
Commission — test system, check safety, validate performance
Advice — tips for timer/off-peak setup, airflow, maintenance