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Grey Water sensors
Hi All,
We went on a trip to the Marathon factory this past weekend – just for fun as Becky is on vacation right now and we decided to do some stuff that we normally couldn’t do.
If you haven’t been there – it’s huge! And they have asphalt for days! Plus lots of hookup spots. We were toured around by Rick – he was great. And I got to see the face of Leon… so now I can picture who I’m talking to.
I also got some parts – a replacement brake light (I should have bought all 3 as the new one looks totally new compared to the others) bay door shocks, and a temperature sensor. The ourdoor temp on the techlink display was reading betwee 280 and 400 degrees all the time.
Anyway – on the trip the autogen tried to kick in a 2 times. But – I’ve been having some sort of problem with the generator start battery. I got a new one from Tom and put that in yesterday… but last weekend the generator tried to come on but the old battery (I believe) was shot so the whole bus’s electricaly system would “shudder the lights” when it tried to start the generator.
This I beleive reset the Techlink computer because it got stuck. I then had to power it ON/OFF to get it to work again. Now – the grey water is measuring totally wrong. I know it’s at lest 50%… but it seems to think it’s at 1% while parked in our driveway. It ranged from 90 to 10% while we were driving back. Fresh and Black seem to be correct.
I noticed (while chaning the bay door shocks) that our bus has a set of little sensor pads on the tanks that I beleive are the sensors. I didn’t see any tubes with airt pumps as I’ve read about on other Marathons.
Any ideas? Like – do I have to dump everything and then reset the computer to sort of get a baseline or something?
Ok -thanks all – as usual. It’s good to have a sounding board out there!
Walt
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2 Replies
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Walt,
FWIW, when I had to have my Techlink computer fixed, after I installed it, took about half a day for the all the tank monitors to correct themselves. I’m not sure how it’s measured either, the original has been replaced by Marathon with an upgrade.
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Walt, It sound like you have the new style tank sensors. look in the bay behind your plumbing manifold and if you follow the leads from the tank sensors you will see some small junctions attached to a small circuit board about 1.5″ size. If you unplug, and replug the small connectors that will usually correct that problem. It could also be located in the passenger side bay above the water pumps. The small boards that Marathon puts in can develope corrosion on the small pins. I usually clean them with electrical contact cleaner. The other thing to try first would be a re-boot of the coach. I have found that problem on 3 or 4 Marathons with the new tank sensors.
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