My push works intermittently, what could be causing this?

In cold conditions, poor location or environment, and when the doorbell system is operating at the maximum range, it is advisable to replace the batteries more frequently (i.e. every 12–18 months) to maintain optimum performance. Replace batteries immediately when the low battery indicator is activated.

Incorrect installation of the CR2032 coin cell battery may also damage the battery contact. Check the battery contact and reinsert the battery.