No Power to Dash/Chassis
So I go out to crank my motorhome. Batteries are fine. House power is fine. Everything works on the house side. But I have no voltage to the power distribution box located under the driver area. ...
Forum Discussion
OP you need more than pictures. You have an issue of not charging.
a) The relay you ordered is used for ENGINE STARTING only
b) The relay you pictured may be an engine starting relay or a different model
used for charging
HOWEVER
REGARDLESS the relay you ordered is for ENGINE STARTING ONLY. It will ABSOLUTELY and WITHOUT QUESTION burn up if left on for more than a minute or two.
You need a CONSTANT DUTY or CONTINUOUS DUTY relay to charge your batteries
Are you certain, meaning sure, you identified the correct relay? Many coaches have two, one for charging, the second for emergency jump starting.
From thousands of miles away I am unable to gaze into a crystal ball and troubleshoot your rig's electrical wiring diagram.
Without a part number taken from the relay in the photo it is uncertain as to exactly what that relay is. Maybe there are two identical looking relays one for intermittent the second for continuous duty.
Do yourself a favor. See if one of the two LITTLE connections on the relay lights up with the key turned on using a test light connected to the rig's chassis. If yes, then the relay is in the continuous duty wiring circuit. If the terminal does NOT light up twist the key to the starter motor cranking position. Does the relay light up now?
REGARDLESS! CANCEL THAT RELAY ORDER! You are making an expensive no-win mistake.
a) The relay you ordered is used for ENGINE STARTING only
b) The relay you pictured may be an engine starting relay or a different model
used for charging
HOWEVER
REGARDLESS the relay you ordered is for ENGINE STARTING ONLY. It will ABSOLUTELY and WITHOUT QUESTION burn up if left on for more than a minute or two.
You need a CONSTANT DUTY or CONTINUOUS DUTY relay to charge your batteries
Are you certain, meaning sure, you identified the correct relay? Many coaches have two, one for charging, the second for emergency jump starting.
From thousands of miles away I am unable to gaze into a crystal ball and troubleshoot your rig's electrical wiring diagram.
Without a part number taken from the relay in the photo it is uncertain as to exactly what that relay is. Maybe there are two identical looking relays one for intermittent the second for continuous duty.
Do yourself a favor. See if one of the two LITTLE connections on the relay lights up with the key turned on using a test light connected to the rig's chassis. If yes, then the relay is in the continuous duty wiring circuit. If the terminal does NOT light up twist the key to the starter motor cranking position. Does the relay light up now?
REGARDLESS! CANCEL THAT RELAY ORDER! You are making an expensive no-win mistake.
