Water Heater Help & Guides
Straight answers from Fast Water Heater Co., installing and repairing water heaters across Washington, Oregon and California since 1986. Figure out what’s wrong, decide whether to repair or replace, and see what your options cost.
Latest Posts
Gas Water Heater Troubleshooting: Pilot, Thermocouple & Status Light Fixes
Pilot won’t light or keeps going out? Blinking status light? A symptom-by-symptom guide to gas water heater problems, what you can safely check, and when to call a pro.
Heat Pump Water Heater Rebates in Washington, Oregon & California (2026)
The federal tax credit ended December 31, 2025. Here is every heat pump water heater rebate we could verify in Washington, Oregon and California as of September 2026 — with the deadlines and eligibility rules that disqualify people most often.
Water Heater Not Heating? No Hot Water Causes & How to Fix It (Gas, Electric & Tankless)
No hot water? Here are the most common causes on gas, electric, and tankless water heaters — the checks you can safely do yourself, and when to call a pro for same-day repair.
Water Heater Leaking? Causes, Is It an Emergency, and What to Do
A leaking water heater is not a problem that waits. Where the water is coming from tells you how worried to be: a drip from a fitting at the top is usually a quick fix, while water pooling under the tank often means the tank itself has rusted through, and that unit is...
Water Heater Error Codes: What They Mean & What to Do (All Brands)
If your water heater is displaying a code, that code is actually good news. It means your unit has self-diagnosed a problem and is telling you exactly what's wrong. The trick is knowing how to read it. This guide covers the most common error codes for every major...
10 Signs It’s Time for Water Heater Replacement
Don't Wait for a Cold Shower – How to Know When to Replace a Water Heater Your water heater is one of the hardest-working appliances in your home, but it doesn't last forever; know when to replace a water heater. The average tank-style water heater lasts 8–12 years,...
Popular Guides
Browse by Topic
Troubleshooting & Repair
Something isn’t working right.
- Gas Water Heater Troubleshooting: Pilot, Thermocouple & Status Light Fixes
- How to Troubleshoot an Electric Water Heater: A Step-by-Step Guide
- Water Heater Not Heating? No Hot Water Causes & How to Fix It (Gas, Electric & Tankless)
- Water Heater Leaking? Causes, Is It an Emergency, and What to Do
- Water Heater Making Noise? Every Sound Decoded (Tank & Tankless)
- Water Heater Error Codes: What They Mean & What to Do (All Brands)
- Is a Leaking or Broken Water Heater an Emergency? How to Tell
- 3 Common Issues With Anode Rods
Repair or Replace?
How old it is, what’s failing, and when a new one makes sense.
Costs & Rebates
What installation involves and the incentives you can still get.
Buying & Sizing
Choosing the right type and size for your home.
- Choose the Right Water Heater Size for Your West Coast Home
- What Type of Water Heater Is Most Energy Efficient?
- Electric vs. Gas Water Heater
- Tankless vs. Standard
- Understanding How Tankless Water Heaters Work
- Is a Tankless and Instantaneous Heater Right for You?
- What to Expect When Installing a Heat Pump
- 80 Gallon Water Heaters
Maintenance & Safety
Keep it running longer and safer.
- 3 Major Reasons to Regularly Flush Your Tank
- What Temperature Should a Water Heater Be Set At?
- 7 Steps to Extend Your Water Heater’s Lifespan
- 4 Steps to Extend Your Tankless Water Heater’s Lifespan
- How to Increase Your Hot Water Capacity with a Mixing Valve
- Winterizing Your House
- How to Safely Remove an Old Water Heater: A Step-by-Step Guide
Need it fixed today?
Call by noon for same-day water heater repair or replacement in most areas. Free estimates, no trip fees.