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View Full Version : Danfoss evr 4 or 6 solenoid leaking on o ring again oct 12







Luke collins
18-10-2012, 09:23 PM
Has any one experienced a leaking solenoid valve on the o ring, we are aware of problems back in 2011 on earlier valves. Recently oct 12 we have had a couple fail and leak after 15 months of install on r404a sites.

THE DUDE
19-10-2012, 11:00 PM
I have had to replace ALL the O Rings on 2 store after 6 months. I did have 2 very large leaks due to the O Rings leaking. Both systems were Low and Med temp R407a

Luke collins
20-10-2012, 05:49 AM
Did you have the o rings leaking on the original or retrofit o rings after 6 months. Thanks.

THE DUDE
20-10-2012, 02:03 PM
Both leaks were on the original. The retro's are holding....so far.

chemi-cool
20-10-2012, 05:26 PM
After retrofit from mineral oil to poe oil, you have to replace all rubber parts.

Luke collins
24-10-2012, 11:40 AM
Hi Chemi-cool its not retrofit of gas, its the retrofit of the danfoss valve o rings and retainers supplied by Danfoss we refer to as they changed the design

jobeobrien
02-11-2012, 12:42 AM
Danfoss has acknowledged a fault in the EVR6 valves and have replacement seal kits available. Would suggest contacting your supplier for repair kits.

Luke collins
04-11-2012, 11:24 PM
Thanks for the info, I was aware of these kits but was keen to understand if anyone else had experienced any leaking valves.

install monkey
04-11-2012, 11:28 PM
yep- had a solenoid replaced 18mth ago, I discovered on a compressor change, solenoid body o ring leaking whilst under a pressure test, replaced the body as after trying to cure the leak by tightening the 4 retaining screws and unable to rectify had to swap the body- been running for 4 month now

lowcool
06-11-2012, 03:16 AM
good show that danfoss actually put their hand up
one other certain manufacturer of unitary equipment that i know of should do the same,heard on the grape vine that im not the only one in australia with a problem hey l----x

Luke collins
24-03-2013, 10:02 PM
If its not the new style which for info are being all replaced with castel by arneg we have had an old style leak. R404a and running on a liquid line at 12 bar, bolt head sheared off and caused total failure. Any one else had this ?

cadwaladr
28-03-2013, 03:38 AM
was this tightened correctly when new seals were fitted,never seen one come apart like that

careerman
05-04-2013, 09:50 AM
Luke,
We've had over 300 valves replaced and we are currently replacing with Castel. There is a good bloke at WR Refrigeration who has helped us alot on this current issue. I've spoken with him a couple of times while out in the field his name is Andy i think he is the cabinet manager?
Might be worth giving him a call.

jamieson91
05-04-2013, 11:51 AM
In 6 years the on,y danfoss solenoid i have seen fail was when a tech put one in. Back o front and another purchased a normally open txv ... Haha and another tech melted the diaphragm ... Un do and remove when soldering if you can't weld for s*** or have bad wrapping technique haha

interesting to hear about the re call...

headgasket
11-04-2013, 04:11 PM
Hi mate we have loads fail, old type round o ring and the new one with the squire edge o ring, they start to piss out gas after 12 months

carl fretwell
06-09-2013, 03:29 PM
I have also had 4 EVR6 valves on site all 4 of them leaked after 12 months so got seal kit replacements after 3 months all 4 are leaking again
systems are on R404a and have the copeland ZB style condensers I am now forced to decommission all 4 unbraze all 4 and fit a different manufacturer valves ouch!!!

THE DUDE
07-09-2013, 02:08 AM
In my opinion its hard to beat Sporlans Solenoid valves...the Metal Wolverine Gaskets rarely leak, even on a Low temp R-22 H.G.S.V's.