You’re missing a copla bets and here they are: One is the power of the ‘Nuts and the second is the power of Ranger Tugs, so rather than posting questions as you go, learn to use the search function on the ‘Nuts, I’m in my 60s and figured it out so you can too.
As for the power of the ‘Nuts I currently can't get power to my Yanmar display so I put in “No power to Yanmar display” and got 1.2 billion hits as the search brings up every thread ever to use any of the words you put in. So I went back at it by putting in “i5601E” which is the label on the display and got 18 hits the very very first one was my exact problem, no power and about a dozen good folks posted what they did, successfully or unsuccessfully about that exact problem. So I get to go back at it today with renewed hope and vigor both to evaporate by noon I figure.
As for the power of Ranger Tugs: The charger/inverter quit so I looked that up on the ‘Nuts and found out there’s no self repair so I whined to Andrew who told me there’s no self repair and to contact the manufacturer so I did so and they said hold on, we’ll get you our Ranger Tug guy and he said Yeah, send it back and if it’s repairable we’ll do that for free we like Ranger Tugs. Yanmar did the same on free recall parts for me because they like Ranger Tugs. Point is, anywhere you go in the boating industry be sure to lead with “Yeah, I’m working on my Ranger Tug” and watch the doors open because organizations are empowered to help because Ranger Tugs is so well liked and admired.
This journey you’ve begun is challenging and can be difficult and you want to avoid any more difficulty than your going to face anyway. Face the challenges by operating every system on the boat while holding the manual in hand. Wait till dark, grab a flashlight and peer deep deep into every nook and cranny while praying you never never have to go there knowing you surely surely will. Say Hello and See You Soon to the backside of your raw water pump, the engine zincs and belts, the oil filter canister and each and every fuel filter and water strainer and tru hull, etc. they are your new best friends! Begin the challenge of maintenance by doing some secure in the knowledge you’re saving yourself over $100 an hour. Research said maintenance on the ‘Nuts for the tricks and tools that are helpful and the difficulties you’ll face at each task.
You’re currently headed into the bilge as am I to repair the bilge pump. Me, I’m going to replace my remote float pump with a built in float pump and I also bought a spare. And before I install it I'm going to connect a hose to the discharge and gently flow it while estimating if there’s any clogs, the one way valve you see in line tend to do that.
If in Boating you get on board and go from A to B without anything happening well that’s Fun but you never never never get to go from A to B without something happening (eventually something is going to happen while your sitting on the trailer or in the slip) and I believe overcoming that something time and time again is what draws us Boaters to Boating and keeps us Boating,