⚡ Quick Answer (Read This First)
If you notice:
👃 Smell / strange taste
🟤 Brown or dirty water
🔊 Weird sounds
❓ Anything unusual
👉 It could be:
water supply issue
internal heater condition
plumbing or usage-related
⚠️ Some cases are harmless — others need immediate attention.
🟤 1. Brown / Dirty Water
🟤 1. Brown / Dirty Water
Possible Causes:
🔸 A. Water Supply Issue (Most Common)
Temporary pipeline works
Sediment from mains supply
👉 Check:
Does cold water also look brown?
If YES → Not heater issue
🔸 B. Contamination Issue
Possible contamination or buildup from incoming water supply for your unit
🔸 C. Old Plumbing Pipes
Rust from building pipes
✅ What To Do
Run water for a few minutes
Check if it clears
Compare different water sources throughout your unit
👉 If persists → book inspection and highlight to our staff of any investigation you have done so far
👃 2. Funny Smell or Taste
👃 2. Funny Smell or Taste
Possible Causes:
🔸 A. Stagnant Water
Heater not used for long time
🔸 B. External Water Source
Smell comes from supply, not heater
⚠️ Important Check
Does the smell occur:
Only in hot water?
Or both hot and cold?
👉 Only hot → Unlikely, our heater does not contain any anode unlike our competitors
👉 Both → supply issue
✅ What To Do
Flush water for a few minutes
Heat tank fully before use
👉 If smell persists and only comes from the HOT→ Do contact our staff for further help
🔊 3. Weird Sounds (Popping / Crackling / Noise)
🔊 3. Weird Sounds (Popping / Crackling / Noise)
Possible Sounds:
“Pop pop”
Crackling
Boiling-like noise
Wheezing Sound
High Pitch Whirring Sound
Possible Causes:
🔸 A. Heating Expansion (Normal)
Water heating can cause very soft boiling sounds. Just like how a kettle boils water.
🔸 B. Sediment / Buildup in Surrounding Pipes
Causes noise during water flow when the tap is turned on
Can come from neighbouring units when they use the water
🔸 C. High Incoming Pressure
If your unit has high pressure above 7 bars some sounds might occur when the pressure is doing its best to equalize
⚠️ When It’s Not Normal
Sound is loud or increasing
Comes with performance issues
Happens continuously
👉 Then inspection is needed
❓ 4. Other Unusual Issues
❓ 4. Other Unusual Issues
Examples:
Inconsistent temperature
Unusual vibration
👉 These may be:
pressure irregularities
double check valve not installed
backflow from other tap fittings
🚫 What You SHOULD NOT Do
❌ Ignore persistent unusual signs
❌ Open heater casing
❌ Attempt DIY repair
👉 Especially for electrical-related issues
🧠 Why This Happens Less with Joven
Joven heaters use:
✅ Stainless steel tanks
❌ No rust-related contamination
❌ No anode rod degradation
👉 This reduces:
brown or smelly water issues
no internal corrosion problems
👨🔧 When to Book Service
Book inspection if:
Brown water does not clear
Smell persists after flushing
Noise is loud or worsening
Multiple unusual symptoms occur
📅 What to Prepare
📸 Photo / video of issue
📍 Address / postal code
📝 Description:
smell?
color?
sound?
when it happens
🧾 Purchase Receipt or Warranty Registration
Do take note of these service conditions before requesting an appointment:
Check if your heater has a valid warranty otherwise a prepayment transport fee is chargeable.
If we found any external electrical faults, no repairs will be done and there will be a diagnostic fee of $70/$85 (depending on area). We recommend you to approach a certified Licensed Electrical Worker (LEW) to check on your external wiring before contacting us to arrange for an appointment.
❓ Frequently Asked Questions
Is brown water dangerous?
👉 Usually temporary, but should be checked if persistent
Is smell from heater harmful?
👉 Depends on cause — safe to check if unsure
Are sounds normal?
👉 Light sounds = normal
👉 Loud / unusual = check needed