Test doorbell transformer
Why it matters
Overheating transformers can cause fires inside walls; aging transformers fail to power modern doorbells.
Stop forgetting to do this.
Hearth generates a personalized maintenance schedule so you never miss another test doorbell transformer.
How to do it
- 1
Locate transformer (usually basement wall or breaker panel).
- 2
Feel for excessive heat with your hand.
- 3
Test output voltage with multimeter (should be 16V AC).
- 4
Test doorbell button to confirm it rings.
- 5
Replace transformer if voltage is low or it is hot.