Martens Minute

No Hot Water? Here's What to Check Before You Call

September 16, 2026

Turning on a faucet and finding no hot water doesn’t necessarily mean there’s a problem with your water heater. If hot water is available elsewhere in the house, the issue may be isolated to that faucet or fixture. If multiple faucets don’t have hot water, it’s time to check the water heater.

The guide below walks you through what to check before you call Martens Plumbing & Heating.

No Hot Water Infographic

Before You Call, Take Note of What You're Feeling, Hearing, and Seeing

How has your hot water changed, and have you noticed anything unusual?

  • Water only gets lukewarm: Note how warm it gets and whether the change affects multiple faucets.

  • Hot water runs out faster than usual: Pay attention to how quickly it runs out compared to normal.

  • Water temperature fluctuates: Note whether the temperature changes during use or from one use to the next.

  • Unusual noises: Listen for popping, rumbling, or banging from the water heater.

  • Rusty or discolored hot water: Check whether the discoloration occurs only when using hot water.

  • Visible corrosion: Look for rust or corrosion on the tank or connections.

When you call Martens Plumbing & Heating, share what you've noticed. These details give the plumber a clearer picture of the situation so they can restore your hot water.