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#27941 - 10/04/19 03:59 PM Dover LMH Issue  
Joined: May 2015
Posts: 161
wltr00 Offline
member
wltr00  Offline
member

Joined: May 2015
Posts: 161
I have a 3-stop Dover LMH. It has a very intermittent and difficult to duplicate issue but essentially what is happening is the car will fail to take off in the up direction. It has only happened in the up direction from either the 1st or 2nd floor. The motor runs but the oil is just bypassing back into the tank. The valve has been replaced as well as the following relays: high, high2, high3, u1, u2, hww1, hww2, hww3, d1, d2 & vcx. At this point I've run out of ideas as to what could be causing the issue. Not sure if it temperature related, as I can simply reset the car and issue another call and it will run normally. Any advice you may have would be greatly appreciated.

#27943 - 10/04/19 07:49 PM Re: Dover LMH Issue [Re: wltr00]  
Joined: Jan 2014
Posts: 681
Rolly Offline
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Rolly  Offline
addict

Joined: Jan 2014
Posts: 681
Anytime on a hydro you have strange intermittent issues, check the supressors or snubbers around the valve coils are there and/or replace or add.

#27956 - 10/05/19 10:42 PM Re: Dover LMH Issue [Re: wltr00]  
Joined: Nov 2009
Posts: 255
Johnny Offline
Journeyman
Johnny  Offline
Journeyman

Joined: Nov 2009
Posts: 255
Portland. Oregon
Check the up emergency limit and MS-1 aux

#27957 - 10/05/19 11:34 PM Re: Dover LMH Issue [Re: wltr00]  
Joined: Feb 2013
Posts: 589
john jay Offline
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john jay  Offline
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Joined: Feb 2013
Posts: 589
ohio
Cold oil, and a Dover valve. It happens a lot. Heat the oil and the problem will go away.

#27993 - 10/10/19 02:19 AM Re: Dover LMH Issue [Re: wltr00]  
Joined: May 2015
Posts: 53
TC7 Offline
journeyman
TC7  Offline
journeyman

Joined: May 2015
Posts: 53
I-2 valves tend to not take off in up direction if up start and up stop adjustments are too close together. Try backing out on up start a half turn


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