Safety Disclaimer
Read this before you open any appliance.
- Cut the power first. Unplug the appliance or switch off its breaker. For a furnace or an electric dryer, switch off the breaker as well, because the unit may be wired directly.
- Never work on gas. If you smell gas, leave the house and call your gas company or emergency services from outside. Don't adjust gas valves or gas lines yourself.
- Never open a sealed refrigerant system. Refrigerant work requires certification.
- Capacitors can hold a charge after the power is off. Air conditioners, furnaces and some appliances contain them. If a guide tells you to stop and call a professional, do it.
- Water and electricity don't mix. Keep towels and a bucket nearby and dry your hands and the floor before touching any electrical part.
- When in doubt, stop. A service call costs far less than an injury or a fire.
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