Fix "Thermopile Voltage Low" Error: Get Your Hot Water Back Fast

Difficulty: Moderate
Time: 2-4 hours (depending on whether cleaning or replacement is needed)
Cost: $20-75 (multimeter + potential thermopile replacement)

Why You'll Like This Fix

There's nothing quite like turning on the shower and getting blasted with ice-cold water when you wanted steam. If your water heater is throwing a "thermopile voltage low" error, you have a fixable problem on your hands, and it is more straightforward than it sounds. Most thermopile issues come down to dirt buildup or loose connections, problems you can often solve in an afternoon with basic tools and a calm, step by step approach. Hot water, back today.