27 Apr 2026

Botannia

Gas Water Heater Not Working: Rinnai Replacement at Botannia Condo

  • Project location

    Botannia

  • Property type

    Condominium

Gas Water Heater Not Working at Botannia - PCB and Heat Exchanger issue- Before and After replaced

9 DEC 2025

Gas Water Heater Not Working: Rinnai Replacement

📍 Botannia

A homeowner at Botannia Condo recently contacted Homeone after experiencing issues with their gas water heater not working properly. Upon inspection, our technicians discovered that the unit had exceeded its expected lifespan and required immediate replacement.

Inspection Findings

The existing Rinnai REU-2008W-RS showed multiple signs of wear and failure:

  • Melted motherboard (PCB) – indicating electrical component failure
  • Heat exchanger – water leaking and heavily rusted
  • Burner parts – rusted and obstructed, affecting heating efficiency
  • Gas valve and gas union – significant rust accumulation
  • Water fittings – corroded and rusty

Given the extent of deterioration, repair was not viable, and a complete replacement was recommended.

🏢 Condo 🔥 Gas Heater ✅ Compliant with Gas Supply Regulations

The Solution: Modern Rinnai Upgrade

The homeowner opted to replace their old unit with the Rinnai REU-2024W-RS, upgrading from an older model to a modern standard Rinnai heater. This model is consistent with what other units in Botannia Condo use, ensuring reliable performance and easy maintenance.

EMA Licensed Gas Water Heater Not Working Replacement

EMA Licensed Gas Heater Replacement – What’s Included

Our comprehensive replacement service included:

Gas & Plumbing Work

  1. New gas heater supply and installation (Rinnai model)
  2. Gas and stop valve replacement
  3. Pipe works partial redo to comply with PUB standards
  4. PUB regulated fittings supply
  5. New control panel installation

Electrical Work

  1. New set of 1-meter 2.5mm² cable provided
  2. Earth bonding installation for safety

Gas Supply Compliance

  1. Complete testing and commissioning
  2. Comprehensive Safety Gas Leak Testing:
    • Soap testing for visible leak detection
    • U-Gauge testing for pressure verification
    • Issuance of test certificate by Licensed Gas Service Worker in accordance with Gas Supply Regulation (required by law)

After Sales Service

  1. Homeone Engineering warranty for 1 year
Gas Water Heater Not Working at Botannia PCB and Heat Exchanger issue After replaced

Statement of Gas Appliances Testing Certificate - Your Legal Protection

Upon completion, you receive a Statement of Gas Appliances Testing Certificate immediately. This critical document confirms:

✓ Installation complies with Singapore Standard SS 608:2024 – Code of Practice for Gas Installations
✓ Installation meets Gas Supply Regulations 21 requirements
✓ The gas heater and entire house gas piping have been tested
✓ No gas escapes exist and the system is safe to use

Why This Certificate Matters

Insurance policies do not cover any damage or injury caused by regulated work carried out by an unlicensed handyman without a valid Statement of Gas Appliances Testing Certificate. Working with licensed professionals protects both your safety and your financial interests.

Why This Certificate Matters

Insurance policies do not cover any damage or injury caused by regulated work carried out by an unlicensed handyman without a valid Statement of Gas Appliances Testing Certificate. Working with licensed professionals protects both your safety and your financial interests.

Gas Water Heater Not Working at Botannia PCB and Heat Exchanger issue Final Pressure Test and Cert

Conclusion

When your gas water heater is not working, prompt action is essential to restore comfort and safety to your home. The case at Botannia Condo demonstrates how aging water heaters can develop critical failures—from melted PCBs and rusted heat exchangers to obstructed burners—that compromise both performance and safety.

Regular inspection and timely replacement are crucial for maintaining a reliable hot water supply. If your Rinnai gas water heater is over 10-12 years old, showing signs of rust, leaking, or failing to produce hot water consistently, it’s time to consider a replacement rather than costly repairs.

At Homeone, we provide professional gas water heater replacement services with licensed technicians who ensure safe, compliant installation. Whether you’re upgrading from an older model like the REU-2008W-RS to a modern REU-2024W-RS, or choosing between pre-heat and standard models for your property, our team delivers quality service backed by manufacturer warranties.

Don’t let a faulty water heater disrupt your daily routine. Contact Homeone at +65 8822 6770 for expert inspection and same-day replacement service. We serve all types of properties—from HDB flats and condominiums to landed homes—ensuring you get the right water heater solution for your needs.

Trust Homeone for reliable, safe, and professional gas water heater services in Singapore.

Frequently Asked Questions

Look for these warning signs:
  • No hot water or inconsistent temperature
  • Water leakage around the heat exchanger
  • Unusual noises during operation
  • Heater is over 10-12 years old
The REU-2024W-RS is a modern replacement with:
  • Improved efficiency and energy savings
  • Updated safety features
  • Better energy consumption
  • Enhanced durability and reliability
  • Compliance with current safety standards
No. Never attempt DIY gas water heater replacement.

Gas water heater replacement requires a licensed gas service technician. Improper installation can lead to:

  • Dangerous gas leaks
  • Carbon monoxide poisoning risks
  • Fire hazards
  • Voided manufacturer warranty

✅ Always engage certified professionals like Homeone for safe installation.

Common causes include:

  • Melted or faulty PCB (motherboard) - electrical failure
  • Clogged or rusted burner - prevents ignition
  • Heat exchanger leaks - water not heating properly
  • Gas supply issues - insufficient gas flow
  • Exceeded operational lifespan - overall system failure

📞 A professional inspection is needed to diagnose the exact issue. Contact Homeone at +65 6742 6770.

With proper maintenance, Rinnai gas water heaters typically last 10-12 years.

Factors affecting lifespan:

  • Water quality and mineral content
  • Frequency of usage
  • Regular servicing and maintenance
  • Installation quality

⚠️ Visible rust and component failure indicate it's time for replacement.

✅ For standard 2-3 room condos like Botannia: A non-pre-heat model (REU-2024W-RS) is sufficient.

🏘️ Pre-heat models are recommended for:

  • Double-storey homes
  • Landed properties
  • Penthouses
  • Properties with piping over 80 metres
  • Where hot water delivery takes over 1 minute

💡 Money-Saving Tip: If your current waiting time is only 30 seconds, save money with a standard non-pre-heat model.

Got A Question?

Feel free to reach out to us, if you have any enquiries

Select your issue:


Log Out

Are you sure want to log out?