Inspect doorbell transformer voltage
Why it matters
Old 10V transformers under-volt smart doorbells, causing reboots.
Stop forgetting to do this.
Hearth generates a personalized maintenance schedule so you never miss another inspect doorbell transformer voltage.
How to do it
- 1
Turn off power to the doorbell circuit at breaker.
- 2
Locate the low-voltage transformer (attic, basement, near panel).
- 3
Restore power and use multimeter on AC voltage.
- 4
Measure across transformer output terminals.
- 5
Compare reading to doorbell's minimum (16-24V AC).
- 6
If below spec, swap to higher-rated transformer.