Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×

Click Here to Login
Thread: Trombetta/BIRD
View Single Post
Old 12-11-2016, 01:38 PM   #4
Senior Member
Brand: Thor Motor Coach
Model: Four Winds 28A Class C
State: Vermont
Posts: 267
THOR #4117
Trombeta is the brand name for a solenoid that connects the house battery to the chassis battery when the engine is running.

BIRD stands for "Bi-Directional Isolator Relay Delay" which allows either the House system (converter) to charge the chassis battery or the engine generator to charge the house battery depending on which circuit has the higher voltage.

Google "rv bird relay" for more info.

Edit: Older RVs used a Trombeta while newer RVs use a BIRD. Mine has a Trombeta that lasted about a year before failing. I replaced it with a similar solenoid, not a Trombeta, from eBay which has lasted for about 10 years without a problem.
tenbear is offline   Reply With Quote
» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.

All times are GMT. The time now is 02:23 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2021, vBulletin Solutions, Inc.