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Old 12-16-2015, 09:56 AM   #1
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harleyjt's Avatar
Newmar Owners Club
Workhorse Chassis Owner
Join Date: Jan 2015
Location: Olive Branch, MS
Posts: 2,068
HWH Jack alarm defeat

The alarm on my HWH jack system absolutely screams when jacks are down and key is on. I know its a safety feature, but good gosh! I have to listen to that darn thing anytime I'm storing the jacks or if I want to cycle the key for some reason at a campsite. It also has a prominent warning lamp on the dash.

Wondering if anyone has added a defeat switch to the alarm? I'd like to figure out a way to add a "latching" defeat switch. I'd like to be able to push a momentary contact switch to silence the alarm for that key cycle. Then, on the next key cycle, all is back to normal and the alarm sounds again until the switch is once again pressed.

Has anyone done anything like this? I can insert a on/off switch easily in the circuit (I think) but don't know how to make it where it would automatically reset itself when the key is turned off. Been trying to figure out how to do it with a relay and just can't quite figure it out.


Edit - Never mind - found a great video on You tube that gave me the answer!

2005 Newmar Kountry Star Gas 3742
Workhorse W24, 8.1L/Allison 5-spd
JT, Em & the boys, Kong & Baxter (rescued grey tabbies)
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Old 12-16-2015, 10:15 AM   #2
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Ret Syntst's Avatar
Join Date: Mar 2014
Posts: 232
My jack alarm doesn't come on when the key is in the ACC position (key turned to the left). I use the ACC position to store and extend the jacks and even to re-level the coach on occasions. If for some reason I have to start the engine, I remove the fuse.


2002 Dutch Star
2015 Jeep Grand Cherokee
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Old 12-16-2015, 10:30 AM   #3
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Join Date: Dec 2015
Posts: 12
Quite tired of the low PSI buzzer, and the ear splitting jack warning, I found this product and had my Wife record several soothing warning messages. Each channel will record up to 1 minute of audio and can be triggered by grounding or applying 12v + to the inputs. Also installed a sensor on the screen door so the dogs cant go rogue and may also wire into the turn signal warning chime. Amazon.com: Recordable Annunciator; 8 minu: Home Improvement
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