I've never heard of a safety plug on an air conditioner dryer.
I have seen a sight glass under a rubber plug on some dryers.
I'd say that if you feel that your drier is the exception to the rule and
did have a safety pop off then you need to replace the dryer because the
fact that the plug is missing would indicate a stopped up dryer, that the
dryer safety performed as designed or that the dryer is simply ready for
replacement.

Stan Wilder

----- Original Message -----
From: "Woten, Rodney" <rodney.woten@LENNOXIND.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, May 10, 2004 8:47 AM
Subject: Looking for "Safety Plug" for A/C system

All,

Finally got around to finding the leak in our '87 Westy.  It appears that
the safety plug that sits atop the receiver/dryer, in the driver's side rear
wheelwell, has blown it's plug.  It's basically a threaded plug with a hex
bolt head on the top.  The center has a hole where, I'm surmising, a small
hard rubber plug once resided.  It almost looks like an LP orifice with an
oversized hole.  Bentley refers to this little dandy on page 87.7.Does
anyone sell  these valves/plugs.  Ron @ Busdepot, Ken @ Vanagain?  Or will
any A/C shop have something that will work?  I'd like to get this replaced
so I can diagnose the rest of our A/C system.

TIA!!!
Rod Woten
'87 Westy
Des Moines, Iowa