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Old 03-23-2021, 02:09 PM   #1
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Need new B.I.R.D

Pretty confident I need to replace my BIRD as occasionally my chassis battery comes up dead even while being plugged into shore power..
I have an Itellitec 00956. I cannot find this exact p/n anywhere on line.
I see a Intellitec non potted BIRD on Amazon but not sure thatís a good move..
Where are you guys getting the potted BIRD?
2 pics showing my MH, 1 pick showing Amazon part..
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Old 03-23-2021, 02:35 PM   #2
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Have you checked continuity thru the solenoid the BIRD controls ?

More often the not, the solenoid has burnt contacts and doesn't always pass current thru it.

My Axis now uses a BIM 225 isolator in place of both the control and solenoid.
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Old 03-23-2021, 03:35 PM   #3
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Quote:
Originally Posted by twinboat View Post
Have you checked continuity thru the solenoid the BIRD controls ?

More often the not, the solenoid has burnt contacts and doesn't always pass current thru it.

My Axis now uses a BIM 225 isolator in place of both the control and solenoid.
Thanks twin boat.. Iíve checked that I can get the solenoid to pick and drop by applying 12 volts to the trombetta. At some point, I noted that the trombetta was getting 12 volts from the BIRD and by disconnecting that wire, I could get the trombetta to drop. I never thought to check continuity through the chassis/coach connections. When Iím plugged into shore power, I will see over 13 volts on the coach side of the trombetta but never saw that identical voltage on the chassis side of the trombetta when I manually picked it..So, I think youíre onto it.
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Old 03-23-2021, 07:22 PM   #4
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I had to look up "Trombetta". Apparently the name of a company that manufactures solenoids and contactors. I did not know that. Capitalizing the "T" makes a difference.

twinboat very rarely steers anyone wrong and I very much doubt he is doing so now. Keep testing but it's a fair bet you need at least one new solenoid.
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Old 03-24-2021, 03:09 PM   #5
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You are aware, I hope, that the BIRD senses battery voltage before deciding to close the relay (whether its a Trombetta or other brand). It's possible that you have a marginal battery or poor quality connection and the BIRD is simply working as designed and not closing the relay because of conditions.


The Trombetta relays are notoriously failure-prone too. I know you said yours works, but does it work every time?



If you do need a new BIRD, maybe this combined controller & relay might work for you:
https://rv-pro.com/news/intellitec-launches-bird/
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Old 03-25-2021, 07:23 AM   #6
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Thanks Gary, Iíve got a replacement t Trombetta Isolation Relay coming in today.
This MH is new to me. With my previous MH, I never had power available to me so when I stored it, the 12 volt cutoff switch was OFF. I never had problems with my chassis battery.
With this MH and new storage location, I can keep it plugged into power with the 12 volt cutoff switch turned ON.. No load on the converter. Twice in the last 5 months, the chassis battery (less than a year old) comes up dead.. Canít figure that out.
However, the converter should be supplying 13 plus volts to the coach side of the Trombetta when plugged into shore power and I have confirmed this. When that happens and there is no real load on the converter, the Relay is picked to supply 13 plus volts to the chassis battery which I have also confirmed..
This time, I metered the coach side of the Trombetta and had 13.60 Volts and only 2 volts on the chassis side of the Trombetta.
1) Why does my newer chassis battery ever get to 2 volts and
2) Why doesnít the Trombetta stay picked to apply 13 volts to the chassis battery?
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Old 03-25-2021, 08:28 AM   #7
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If you are actually measuring 2 two, volts on the engine battery side you have a real serious issue with either bad batteries or the wiring that goes to it.

Take a measurement on the chassis battery middle posts. If you see two volts on them they are shot. They may have been assassinated by the lack of proper charge because the relay is not working. Letting them run down severely will ruin batteries in short order.
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Old 03-25-2021, 09:02 AM   #8
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If you are actually measuring 2 two, volts on the engine battery side you have a real serious issue with either bad batteries or the wiring that goes to it.

Take a measurement on the chassis battery middle posts. If you see two volts on them they are shot. They may have been assassinated by the lack of proper charge because the relay is not working. Letting them run down severely will ruin batteries in short order.
Thank YC1. I just came back from MH.. I had 13.60 volts on both sides of the Trombetta. Disconnected chassis cable from Trombetta and had about 12.50 volts on chassis battery.. All perfectly normal today..
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Old 03-25-2021, 09:10 AM   #9
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I would turn off or disconnect shoreline and try to start the rv. The heavy load will sort out bad batteries in quick order. The batteries should be 12.7 if they have been charged for long enough. You cannot trust a surface voltage reading.
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Old 03-25-2021, 10:36 AM   #10
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I would turn off or disconnect shoreline and try to start the rv. The heavy load will sort out bad batteries in quick order. The batteries should be 12.7 if they have been charged for long enough. You cannot trust a surface voltage reading.
Thanks Myron..yep..MH turned over vigorously and started just fine after unplugging shore power..
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Old 03-25-2021, 11:13 AM   #11
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Also, the BIRD has a built in delay before it will send the connect signal to close the relay.
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Old 03-25-2021, 11:51 AM   #12
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Pick the solenoid, and drop it, a few times while reading chassis voltage. See if it connects every time.
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Old 03-25-2021, 01:18 PM   #13
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Pick the solenoid, and drop it, a few times while reading chassis voltage. See if it connects every time.
Thanks twin boat. I was doing just that the other day. When plugged into shore power, all I have to do is remove and reattach the 12 volt yellow lead from the solenoid. I see 13.6 volts through the solenoid every time.
Even if the Trombetta intermittently fails to bridge the 13.6v to the chassis side, why is chassis battery draining? There is nothing on..
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Old 03-25-2021, 01:27 PM   #14
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If you decide to replace the system you should consider the Blue Sea ACR. Some of the other coach owners have installed it with great success. The best thing is it's guaranteed for life!
https://www.amazon.com/Blue-Sea-Syst...a-434132500260
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