TimTech
Member
- Aug 26, 2013
- 107
- Boat Info
- 1997 330 Sundancer
- Engines
- Mercruiser 7.4L MPI Blue Water V-drives
1997 Searay 330 with twin 7.4MPI. The engine warning alarm that used to sound when I put either start switch in the first click (engine not running) no longer sounds. This is happening with both engines. If I press the "test" switch on the systems monitor, an alarm sounds correctly and all the test lights light up. All the rest of my gauges work as expected.
According to the owner’s manual supplement wiring diagram, there are two independent alarms without common circuits associated with each engine. Each port or starboard alarm is wired to the respective positive terminal of the coil and is grounded through either the high water temp switch, low oil pressure switch, or high trans temp switch.
However, I've searched behind the dash and gauges and there is no other alarm I can find other than the one associated with the systems monitor. If there are two alarms and I just can't find them, it is virtually impossible that both independent alarms would suddenly stop working.
The only explanation I can come up with is there is only one alarm and it is associated with the systems monitor (wiring diagram is wrong). Therefore, there must be something wrong with the SEARAY IPX system module located behind the dash. I seem to remember the bilge light on the system monitor coming on when the bilge switch was activated. That no longer happens.
Does anyone have any insight or experience with this phenomenon?
According to the owner’s manual supplement wiring diagram, there are two independent alarms without common circuits associated with each engine. Each port or starboard alarm is wired to the respective positive terminal of the coil and is grounded through either the high water temp switch, low oil pressure switch, or high trans temp switch.
However, I've searched behind the dash and gauges and there is no other alarm I can find other than the one associated with the systems monitor. If there are two alarms and I just can't find them, it is virtually impossible that both independent alarms would suddenly stop working.
The only explanation I can come up with is there is only one alarm and it is associated with the systems monitor (wiring diagram is wrong). Therefore, there must be something wrong with the SEARAY IPX system module located behind the dash. I seem to remember the bilge light on the system monitor coming on when the bilge switch was activated. That no longer happens.
Does anyone have any insight or experience with this phenomenon?