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Relay for raw water pump - Lunaire Marine PR-2 A/C
Posted: Sun Apr 19, 2026 7:53 am
by jwolfpack02
I have a 1986 10M Sedan and the raw water pump is not kicking on when turning on either of the A/C units. We tested power at the junction box under the dinette after no power to the pump. We have power to the box and no power from the relay. Should I replace the whole board? If so, what board should I be looking for?
Re: Relay for raw water pump - Lunaire Marine PR-2 A/C
Posted: Sun Apr 19, 2026 10:47 am
by prowlersfish
I would give Beacon Marine a call on Monday. I know on a Cruseaire system, you have power to the relay box. Then, when you turn on one of the A/Cs it sends another power source to turn on one of the relays/triggers to send power to the pump. Not sure if your system is the same. I don't have a diagram for Lunaire.
Re: Relay for raw water pump - Lunaire Marine PR-2 A/C
Posted: Wed Apr 22, 2026 2:58 pm
by jwolfpack02
prowlersfish wrote: ↑Sun Apr 19, 2026 10:47 am
I would give Beacon Marine a call on Monday. I know on a Cruseaire system, you have power to the relay box. Then, when you turn on one of the A/Cs it sends another power source to turn on one of the relays/triggers to send power to the pump. Not sure if your system is the same. I don't have a diagram for Lunaire.
Thanks so much. Made the call and got the help I needed.