Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 12-06-2016, 13:30   #1
Registered User

Join Date: Aug 2009
Location: Kemah, TX
Boat: Whitby 42
Posts: 46
Mermaid AC High Pressure Fault

Hello All,
I'm looking for some help with a Mermaid Marine AC system. When I turn on the breaker to the system and put it in "cool" mode I immediately get a high pressure fault. .

The troubleshooting guide says the high pressure switch needs to be reset. I think I found the switch but it is either not tripped or I don't know how to reset it. I believe it is the device with the giant reset arrow pointing to it:

I pushed down firmly on the red rubber boot cover, and it seemed like it was in the normal position. Any advice on what do to? Does anyone know if this switch is normally open or closed?
AHoy is offline   Reply With Quote
Old 13-08-2016, 11:03   #2
Registered User

Join Date: Jan 2012
Location: Cleveland, Ohio
Boat: Beneteau Oceanis 321 32'
Posts: 7
Send a message via AIM to MLC
Re: Mermaid AC High Pressure Fault

I have a Mermaid A/C system. I do not know if you are still having this problem, but one cause may be your water inlet pump losing prime. See the Mermaid owner's manual. There may be air in the line between the outlet of the pump. The water inlet pump in my Mermaid sometime does not self-prime and I have to disconnect the water line outlet from the pump to bleed out the air. Huge pain. Poor design of the water inlet pump.
MLC is offline   Reply With Quote

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Oil Pressure Warning Light Works, Pressure Gauge Shows Zero Gone2long Engines and Propulsion Systems 17 29-01-2015 03:40
Send Over-Pressure Shore Water Over the Side with Pressure Valve ? sdowney717 Plumbing Systems and Fixtures 4 15-08-2011 18:36
PVC? Hypalon? RIB or High Pressure? svDragonfly General Sailing Forum 33 09-06-2009 17:24
Still have high oil pressure-ideas please? Mexico Mike Engines and Propulsion Systems 5 26-05-2008 15:57
Durable high pressure hoses and fittings phorvati Provisioning: Food & Drink 2 07-06-2007 05:15

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:46.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.