Mase Genset alarm codes

[trailertrawlerkismet]

We have the Mase Genset 2.7 and shortly after it was started a couple of days ago it quit running. I went to the control panel to read the alarm code but the screen was blank, I pushed the ON button and nothing displayed. I went ahead and checked the impeller and it was fine, took the cap off of the seastrainer and had plenty of water flow. Turned the breakers off and back on at the Genset and still the control panel screen was blank. Fast forward to the next day (we're docked at a marina with shore power now) and after being at dock for 20 hours I pushed the ON switch at the control panel and it lights up however no alarm code was displayed. I checked the oil and saw it was at the bottom of the dipstick so I've added enough oil to bring the level up to a proper level. I then powered the genset up and started it and it runs fine. My thinking is that it stopped because of error code E-81....."engine lubrication system pressure is insufficient" however this is just a guess. Ok here is my question......does anyone know of a way to retrieve prior Alarm Codes on the Control Panel? I'd like to be able to know for sure why my engine stopped other then guessing. Any additional advice, thoughts or questions?

Jim F

 

[HRowland]

Hi Jim,

I suspect an electrical connection problem since the display was blank. The display would remain on with an error code if a fault is detected. For some faults there is a start up delay built into the controller, for example, after start there is a delay before oil pressure is required, this allows time for oil pressure to build up after the engine starts. Likewise there is a delay before a low output voltage fault is reported to allow time for the engine to get up to speed.

Since you still had oil on your dipstick I doubt that you had no oil pressure. Like I said before, even with no oil pressure the engine should start and run for a short time before shutdown and fault display.

I would check the connections inside the genset case, particularly those on the fuses and circuit board. There may be oxidation, I have heard of problems with this.

I have been unable to find the IS 2.7 service manual online but do have a copy of the IS 2.5 which is very similar (if not the same) electrically as ours. The biggest difference is the case design, both the 2.5 and 2.7 have identical output ratings, 2.2KW max, 1.9KW continuous. They are not 2.5 or 2.7 KW as many think!

Howard

 

[trailertrawlerkismet]

Good call Howard. I unscrewed the cover that the break switches are attached to and found the fuse buss that has a 3 and 30 amp fuse. The 3 amp fuse was fine however the 30 amp was fried, not sure if I can get all the remnants of the broken up fuse out and I can not seem to find a way to disconnect the fuse holder from the panel, in order to get better access. If I can not get the pieces cleaned out I may have to order a new fuse module. So based on this do you or anyone else have any thoughts as to what would make this happen? The manual states that "In the event of a short-circuit of the low-voltage electrical system, two fuses 3A 30A break the circuit stopping the genset." The manual goes on to state that when this happens that one needs to find and eliminate the cause. How does one do this?

 

[HRowland]

Hi Jim,

The fuse may have overheated and burnt due to oxidation on the pins/socket causing high resistance. You can check for a short circuit using an ohmmeter but having schematics would help. I sent you a PM to get your email so I can send a service manual to you. It is for the IS 2.5 but electrically it should be much like the 2.7 in our R27s.

Howard

 

[walldog]

Hi Jim,

The fuse may have overheated and burnt due to oxidation on the pins/socket causing high resistance. You can check for a short circuit using an ohmmeter but having schematics would help. I sent you a PM to get your email so I can send a service manual to you. It is for the IS 2.5 but electrically it should be much like the 2.7 in our R27s.

Howard

The manual for the 2.5 is the only one I could find for my 2.7, As Howard stated, I believe it is the same also. Anyway the codes will be the same.

Good Luck, Herb

 

[trailertrawlerkismet]

To bring my genet problem to a close I'm reporting back with the results. After unscrewing the side facing cover, the one that the two on/off switches are located on, I found the two inline two pronged fuses....one is a 3 amp and the other is a 30 amp. The 30 amp was completely fried, so bad that the fuse carrier was corroded enough I had to obtain a replacement. Easy enough as all I had to do was unsnap the fuse carrier from the inside generator panel, unplug the old one and replace with the new carrier, reinstall with a new 30 amp fuse and everything was back to normal. It's my understanding that the 3 amp fuse is the trip fuse for starting and that the 30 amp fuse is the trip fuse for power generation. At any rate I must have put to much of a load on the genet one to many times and the 30 amp fuse fried.

All is back to normal, genet started and accepts a load...ie generates power. Check you spare fuses to make sure you have a spare or two of the 3 and 30 amp fuses...for some reason I had no spare 30 amp fuses.

Thanks for all the input.

 

[Just Dreamin']

Jim, thanks for posting the corrective action. And, glad to hear all is back to normal. I hope you are still down South as we are going back to normal (for this winter) single digits and snow in Central Ohio.
Mike Guthrie

 

[trailertrawlerkismet]

Hi Mike, yes we're fortunate enough to still be in Florida until the end of March. Hopefully spring will be in full swing by the time we start our journey home and the coldest weather is behind us all. Have a grand time on your summer adventures and we look forward to seeing you next winter if you make it down to Florida.

Jim F

 

[captstu]

Jim, the E81 code on my generator control panel was caused by a faulty dipstick. Oil was leaking out around the dipstick when the oil level dropped below full raising the E81 code. I purchased the dipstick about $15, topped up the oil, and it's running fine sense.