Generator question

PhilR

Well-known member
Joined
Feb 3, 2011
Messages
416
Fluid Motion Model
C-28
Vessel Name
TUGALONG
Where does the Mase generator draw power for its starter....does it have its own battery in the generator case?
 
We had a 2012 R27 so things may be different on your R27. With that said the genset got its starting power off of the engine battery, battery number 1 on our boat. Battery number one, in our R27, was located in the port rear battery locker and sat in the starboard side of that locker closest to the transom.
 
Thanks Jim. My battery banks are good, but no power at the on/start buttons.

Phil
 
If you do not have the manual for the Mase genset PM me your email address and I'll forward you a pdf of the manual. My be some useful info in there that could help.

Jim F
 
On our R-25, the generator draws its power from the engine start battery.


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PhilR":38y6g080 said:
Thanks Jim. My battery banks are good, but no power at the on/start buttons.

Phil

You may want to check the connections from the battery, maybe some corrosion or a bad ground. I also make the assumption that there is a fuse somewhere that may need checking out.
 
Mike, There is no power to the generator panel with the battery parallel switch turned on. Do you know if there is a fuse and where it is?

Phil
 
I have a 2017 R-27 and was wondering about this too. I am able to start the generator with only the House battery switch on. This leads me to believe the generator starter is hooked directly up to a battery and bypasses the battery switches?
 
The power for the generator controls on my R-25 (and the main engine controls) comes from the HOUSE circuit.

The power for the generator and main engine starter motors (but not their controls) comes from the engine start battery.

There are some advantages to doing this - cranking the engine (either one) does not interfere with the electronics since there is no real load on the house circuit.

The disadvantage is when the house is low the engine (either one) will not start because the control circuit gets insufficient power.

Given there is an easily accessible switch to bridge the house and engine starter batteries, this seems an OK compromise to me.

/Stu
 
You need to remove the front access panel with the switches on the generator. Single screw above the AC on/off switch, remove it and tilt the panel forward to remove it. The switches will have enough wire to allow access. There is a 15 amp fuse for the control panel that I believe you"ll need to replace. Reinstall the panel and everything should be golden. Had this happen to me,....Still can't figure out why mine blew, but I haven't had a problem since. Might just be a faulty stock fuse. Good Luck and let me know if this fixes it!
 
Thank you!!! I'll check the fuse when I get back to the boat in a few days.

Phil
 
Phil, also check for corrosion on the fuse sockets and terminals. This is a known problem area.

On my R27 the Mase is hard wired to the house bank. A single wire (I believe 6G) powers the genset electronics and starter. There is no fuse in line, this wire goes directly to the genset starter motor. The genset electronics are fed off of the starter terminal.

I modified mine by adding a disconnect switch and ANL fuse near the house bank for the Mase power feed. The power switch on the Mase does not shut everything off, the starter motor is still connected to 12V. In the extremely rare event of a stuck solenoid there would be no way to stop the starter.

Howard

PhilR":3clkr4yh said:
Thank you!!! I'll check the fuse when I get back to the boat in a few days.

Phil
 
Thanks Howard, Corrosion is almost a non issue on my boat thanks to the clear, fresh water of Lake George, and a heated garage. My 6 year old zincs look almost new.....and no bottom paint. We compound and wax the bottom and the keel with the annual detailing (makes the boat go faster 🙂. I can't imagine owning a salt water boat.

Phil
 
PhilR":2qkg4vt1 said:
Thanks Howard, Corrosion is almost a non issue on my boat thanks to the clear, fresh water of Lake George, and a heated garage. My 6 year old zincs look almost new.....and no bottom paint. We compound and wax the bottom and the keel with the annual detailing (makes the boat go faster 🙂. I can't imagine owning a salt water boat.

Phil

i'll second that.... similar in the Great Lakes... Our motto: No Salt, No Sharks, No problems!
 
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