Water Heater Singapore
Reason for the Call-Out:
Joven Water Heater No Hot Water: homeowner suspected heater failure and contacted Homeone for professional replacement.
HDB
Joven Water Heater No Hot Water Replacement at 323A Sumang Walk HDB
A homeowner at 323A Sumang Walk faced a Joven water heater no hot water issue with a leaking JH25 unit. Homeone replaced it with a new JSH35, upgraded all fittings, and completed the job under PUB-compliant supervision.
Existing Heater: Joven JH25
New Heater: Joven JSH35
Date Of Replacement: 8 Apr 2025
Project Location: Sumang Walk
Before Replacement:
The existing Joven JH25 water heater had reached the end of its lifespan. It suffered internal tank leakage and severe corrosion, with visibly deteriorated inlet/outlet fittings and no double-check valve. The setup was unsafe and non-compliant with PUB plumbing standards.
After Replacement:
Homeone replaced the old JH25 unit with a new Joven JSH35 water heater. New piping, valves, and fittings were installed, and a PUB-required double-check valve was added. The new system was safe, efficient, and fully compliant, ready for PUB submission.
Joven No Hot Water Hotline Singapore
No hot water from your Joven water heater?
Our Joven No Hot Water Hotline Singapore helps homeowners quickly identify whether the issue is caused by electrical faults, heating element failure, thermostat problems, or an ageing heater.
Why Is My Joven Water Heater Not Producing Hot Water?
A Joven water heater with no hot water is commonly caused by:
- ✓Faulty or burnt heating element
- ✓Thermostat malfunction
- ✓Power supply issues or loose wiring
- ✓Tripped safety cut-out
- ✓Internal component wear due to age
Our technicians will assess whether the issue can be repaired safely or if replacement is more cost-effective.
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Joven No Hot Water Hotline Singapore: +65 8816 6770
Whatsapp Service Enquiry: +65 8816 6770
Inspection Findings 
- Internal tank of Joven JH25 was leaking
- Tank body was heavily corroded and beyond repair
- Inlet/outlet pipe fittings were rusted and leaking
- Missing double check valve (non-compliant installation)
New Components Replaced:
- Joven JSH35 storage heater
- New double-check valve
- New stainless steel braided hoses
- New inlet and outlet angle valves
- High-pressure rated fittings
Replacement work scope:
- Shut off the main water and electrical supply
- Dismantled the faulty Joven JH25 unit
- Installed new Joven JSH35 heater
- Laid new double check valve, stainless steel inlet, outlet pipes, drainpipe and fittings
- Re-bonded electrical earthing
- System tested, verified hot and cold water flow
- Site cleaned and handed over
- Documentation for PUB submission
Our PUB Licensed Plumber has endorsed that 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:
This Joven water heater no hot water issue was professionally resolved by Homeone’s technicians under the supervision of a Licensed PUB Plumber. All works were carried out to meet current PUB plumbing regulations, and a submission was completed to certify compliance.