Water Heater Singapore
Reason for the Callout
The Ariston AN 15 R water heater showed visible rust and leakage, indicating internal corrosion. The unit had reached the end of its operational lifespan.
Condo
Ariston Water Heater Rusty: AN 15 R Replacement at Avalon
A homeowner at Avalon Condo faced an “Ariston Water Heater Rusty” issue due to an ageing unit. Homeone replaced it with a higher-capacity Ariston PRO RS J 25 for better performance and compliance.
Before: Ariston AN 15 R
After: Ariston PRO RS J 25
Date Of Replacement: 2 Jun 2025
Project Location: Anderson Road
Before Replacement:
The old Ariston AN 15 R showed visible rust and signs of leakage, indicating severe internal corrosion. The electrical connection box lacked a cover, posing a safety hazard. The plumbing installation also lacked a PUB-approved check valve.
After Replacement:
The faulty unit was replaced with a new Ariston PRO RS J 25. All piping was upgraded to stainless steel (within 1 metre), and all fittings and valves were renewed. The electrical connection box was replaced for improved safety and reliability.
Ariston Rusty Water Hotline Singapore
Noticing brown, yellow, or rusty water coming from your Ariston water heater?
Our Ariston Rusty Water Heater Hotline Singapore provides fast, brand-specific assistance to help homeowners identify whether the issue is caused by internal tank corrosion, sediment build-up, or ageing heater components.
Rusty hot water is a warning sign and should be checked early to avoid water quality issues and sudden heater failure.
When Should You Replace an Ariston Water Heater Due to Rusty Water?
Replacement is commonly advised when the condition affects water quality, reliability, or safety.
- ✓Rusty water appears regularly, not just occasionally
- ✓Discolouration worsens over time despite flushing
- ✓The heater has been in use for many years
- ✓Internal corrosion is suspected within the storage tank
- ✓Water quality has become unsuitable for daily household use
In these cases, continued use may increase the risk of sudden tank failure or leakage.
Just whatsapp or call us directly.
Ariston Rusty Water Hotline Singapore: +65 8816 6770
Whatsapp Replacement Enquiry: +65 8816 6770
Inspection Findings 
- Internal corrosion in the tank
- Rusty plumbing fittings
- Missing PUB-approved check valve
- Electrical connector box without cover
New Components Replacement
- Ariston PRO RS J 25 heater
- Stainless steel hot, cold, and drain pipes (≤1 metre)
- Approved check valve
- Stopcock
- Electrical connector box
Replacement work scope:
- Isolate the power and water supply
- Dismantle the leaking Ariston AN 15 R unit
- Install a new Ariston PRO RS J 25 with alignment above the ceiling
- Replace old pipes with stainless steel ones (hot, cold, and drain within 1m)
- Install new fittings and ensure watertight connections
- Perform the electrical bonding inspection
- Electrical safety upgrade with new connector box
- System pressure and temperature of the hot water outlet are tested
- Submit PUB heater replacement notification
Our PUB Licensed Plumber has endorsed that the work is done in accordance with the conditions stated below:
- All water service installations must be in accordance with the Public Utilities (Water Supply) Regulations, Singapore Standards 636 for Water Services, and all other relevant statutory requirements.
- The proposed works shall not adversely affect the existing water supply reticulation system.
- The proposed water storage heater is installed in accordance with the specifications and requirements of the manufacturer.
- The installation of double-check valves is safe and effective in preventing backflow and the back-siphonage of water from the storage water heater through the heater inlet pipe, and will be safe for use.
Conclusion:
The above ceiling replacement was carried out by a team of two Homeone technicians (one team lead and one technician), supervised by a Licensed PUB Plumber. All plumbing and electrical works were completed in accordance with PUB regulations. PUB submission was made post-installation to ensure full regulatory compliance.