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Old 03-13-2018, 12:52 PM   #1
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Bi-directional relay BIRD, cycling

Have just replaced all batteries, and my BIRD relay is causing the battery isolation solenoid to cycle. It opens for 5-6 seconds, closes(connects batteries) for about 25-30 secs. Battery voltages are equal at 13.25-6, but cycling continues. Looking for direction. Appears that itís doing its job, but only started its cycling when one chassis battery went bad and overheated (cell shorted?). Installed chassis batteries first, cycling stopped. Replaced house next day (made two new cables), started cycling again. Cables are good inv/charger shows on float at 13.5v. Anyone had a situation like this?
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Old 03-13-2018, 01:10 PM   #2
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Quote:
Originally Posted by Mike_Harriet View Post
Have just replaced all batteries, and my BIRD relay is causing the battery isolation solenoid to cycle. It opens for 5-6 seconds, closes(connects batteries) for about 25-30 secs. Battery voltages are equal at 13.25-6, but cycling continues. Looking for direction. Appears that itís doing its job, but only started its cycling when one chassis battery went bad and overheated (cell shorted?). Installed chassis batteries first, cycling stopped. Replaced house next day (made two new cables), started cycling again. Cables are good inv/charger shows on float at 13.5v. Anyone had a situation like this?


Update: walked outside, BIRD has quit cycling!! I hate that! The problem just goes away, without any obvious cause??!! Any ideas would still be appreciated. Battery charges off a .1volt?, installed on different days, my foolish unforced error during installation? Itís a mystery!
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Old 03-13-2018, 01:21 PM   #3
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You might take a meter to see if the signal wire from the BIRD to the relay is cycling and if it’s not it might be relay and if it cycles might be the BIRD.
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Old 03-13-2018, 03:32 PM   #4
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When the BIRD does not have the Combiner Solenoid activated you should see different voltages on the two big posts of the Combiner Solenoid. If you see the exact same voltage the banks are being combined (by the BIRD).
The BIRD senses the voltage on the house bank and if it senses 13.3+ on the house bank it will send a signal from the BIRD (starts at 12 and drops to 3.6ish to hold solenoid on) to activate the Combiner Solenoid, which allows both banks to be charged.
If the BIRD combines the banks and then opens I would check the voltage of the house bank. It all starts there.
Is it possible something is putting a big load on the house bank - remember that when the house bank voltage drops below 13.3 the combiner opens. Check with a Volt meter.
You can always call Intellitec (I'm assuming that is the brand) and talk to Mark - a good guy been there forever.
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