Missed heartbeats when publish in consumer

[infectos]

I have a consumer inside of which I publish messages using publisher with different connection that consumer uses.
After some time after deploy (1-2 hours) I get Missed Heartbeat error in $publisher->publish().
I have big heartbeat value. Tried to change this value on both rabbitMQ and application. No changes.
I thought about reconnecting if I face that error, but in symfony I have no reconnect() method in ProducerInterface.
Is there any way to reconnect or fix this error?