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Old 05-18-2015, 09:36 PM   #1
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A/C Problem

I have a problem with my forward AC unit. It is a Marine Air Systems 16K Cabinmate Model U16KH (1986). The units works well for its age (56 degrees at vent). I typically run both fore and aft (newer 2009 Marine Air Cabinmate with electronic controls) 16k units during the day and power down the older forward unit at night. This morning i tried to fire up the forward unit with nothing happening when i turned the knob to start. I went ahead and replaced the breaker at the panel and checked the voltage at the wiring bar on the top of the unit...... 115 volts at the bar. Still nothing when i turn the knob. Not really experienced with AC systems so wanted to procure some advice prior to diving into the unit with the meter. I have the original paperwork and wiring diagram. Pic of control panel below.

Thanks for the help
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Old 05-18-2015, 10:15 PM   #2
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So no fan in the start position?
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Old 05-18-2015, 11:23 PM   #3
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No fan, No RW pump....... Hoping it is just the switch.
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Old 05-19-2015, 07:40 AM   #4
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Open up the control box and check the fuses.
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Old 05-19-2015, 10:27 AM   #5
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Success....I removed the switch and cleaned 29 years of corrosion from contacts with my Dremel/wire brush. Replaced all slide-on connectors and applied Corrosion X to all contact points. Re-assembled and voila.....Coolness......crisis averted. The Admiral is now happy and I can go back to my sanitary hose replacement project. CHEERS!
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Old 05-19-2015, 10:35 AM   #6
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Sweet! Enjoy the cold air.
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Old 05-19-2015, 02:37 PM   #7
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I woulda dragged out that corrosion mitigation project awhile, at least for about 5 beers worth of time. Head hose is a real $hitty job.
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