⚡ Quick Answer (Read This First)
If water is leaking from the heater body or tank:
❌ This is NOT normal
⚠️ It is a serious internal issue
🚫 The heater should be switched OFF immediately
👉 A leaking tank cannot be repaired — replacement is usually required.
🔍 What is “Tank Leak”?
A tank leak means water is coming from:
The main body/casing of the heater
Not from external pipes or valves
👉 This indicates failure of the internal water tank
🚨 Immediate Action Required
🚨 Immediate Action Required
🔌 Step 1: Switch OFF Power
Turn off heater at switch / isolator
Do NOT turn it back on
🚿 Step 2: Slow the Water Leak
Where possible, locate the valve that is right before the connection to the water heater and turn it off
This stops the water from flowing into the heater and causing the leak
📞 Step 3: Arrange Inspection / Replacement
Contact service team immediately
🔥 Common Causes of Tank Leak
🔥 Common Causes of Tank Leak
1. ⚙️ Excessive Pressure
High water pressure stresses tank
Weak points may fail
2. 🧪 Unsteady Pressure
Pressure can be low but unsteady
The unsteady pressure can damage the integrity of the inner tank
3. 🔧 Incorrect Installation
A blocked PRV or incorrectly installed overflow pipe can cause excessive pressure to build up within the storage tank
🧠 Important: Can It Be Repaired?
🧠 Important: Can It Be Repaired?
👉 NO
A leaking tank:
❌ Cannot be patched safely
❌ Cannot be repaired onsite
👉 Only proper solution = replace the heater
💡 Why This Happens Less with Joven
Joven heaters use:
✅ Stainless steel tanks
❌ No enamel coating that cracks
❌ No anode rod dependency
👉 This significantly reduces:
internal corrosion
premature tank failure
🚀 Recommended Solution
Contact our Service Staff for Support
All JOVEN water heaters of JSH and JSV models comes with a valid inner tank leak proof warranty of 5 years (for retail customers) if registered online. For projects, please refer to your warranty terms and condition letter given by your developer.
If the heater is installed and used commercially (non-home use), the inner tank leak warranty is limited to 1 year and if a pressure reducing valve (PRDV) is installed.
Please refer to our warranty terms and condition found on our website:
When replacing, consider:
✔ Correct PRV installation (No Choke and Not against gravity)
✔ Proper pressure control (PRDV if needed)
✔ Double Check valve installed (PUB regulations)
👉 This prevents future issues
📊 Upgrade Opportunity (Smart Recommendation)
If your old unit failed:
👉 It’s the best time to:
Upgrade to larger capacity
Match with rain shower systems
Improve overall user experience
👨🔧 When to Book Service
Book immediately if:
Water is leaking from heater body
Leak is increasing
📅 What to Prepare
To speed up assistance:
📸 Video of leak location
📍 Address / postal code
📝 Description of frequency of the leak
🧾 Purchase Receipt or Warranty Registration
❓ Frequently Asked Questions
Can I still use the heater?
👉 ❌ Best not to. Please help to turn off the water supply to the water heater if possible to reduce water wastage or high water bills.
Is it covered under warranty?
👉 Depends on:
age of unit
warranty terms
installation conditions
How do I confirm it is tank leak?
👉 If you are able to provide a video, do send it to our team and we would be happy to troubleshoot together with you before arranging a service appointment.