Battery Disconnect Switch ??
Have an older 2001 Coachman Catalina Sport. The Battery Disconnect Switch has an in-use and store switch. It is a Interellec BDO. The in-use selection does not engage, activate, or turn on. Just repla...
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Another way to test is to put a volt meter, set to 20 volt DC scale, between the two small terminals, have helper hold switch in one position. Meter should read voltage either positive 12 volts DC or negative, then have helper hold in other position. Meter should read 12 volts DC with opposite polarity.
