Forum Discussion
Tom_Barb
Oct 31, 2018Explorer
dougrainer wrote:
1. Intellitec Bi directional relay controllers do NOT fail very often. Most I have replaced was due to moisture/corrosion. Rarely do they just "fail".
2. I would suspect your chassis Alternator/Regulator is not up to full operation and is failing when you have the load of the Inverter in transit
3. The Bi relay is a very LOW amp device. It just sends a 12 volt signal to the Big Boy solenoid to combine both battery banks to charge when it sees the 12 volt ignition wire/spade terminal get 12 volts
4. On Shore Power, IF the dc voltage goes OVER 13.1 volts and stays over, it will close that Big Boy to charge the CHASSIS battery bank. Conversly, if it sees OVER 13.1 from the chassis side it closes the Big Boy to charge the COACH batteries in transit.
5. How Many Bi relay's have you replaced? Other than corrosion, the other culprit would be HI dc amps inputed to the Bi relay box. Any Amps over 5 amps may destroy the Bi Relay box.
6. Here is a link for the Intellitec if you do not have the info.
7. Also, your batteries (or just 1 or 2) may be bad and causing the charging problem. I would have all 4 Coach batteries tested. If 1 is bad, replace all 4. Doug
https://www.intellitec.com/assets/pdf/1453-intellitec-pdf-template-53-00839-100.pdf
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