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The interrupter’s sole job is to cut off the gas supply, whenever the fridge is not being used in
Propane
mode. The new relay will do the same task, but with guaranteed success, because it too will be energized by
the
Propane
button, but disabling the gas valve when the panel control is off or put in other modes.
Below is a description of how to install this auxiliary relay and fix the flame sustaining issue.
Installing the Relay
You need a relay with a 12VDC coil that is SPST, N.O. contact, also referred to as a ‘1 Form A’ type.
If you have a 12VDC coil relay, with any ‘normally open’ contacts, use it.
Below are some suggested resources for parts.
Radio Shack
12VDC/30A or 40A, SPST Automotive Relay
Model: 275-001 or 275-226
~ $7 US, online
(handy, because it has a screw mounting tab and spade lugs for wiring it in – recommended)
(contact current rating is not important because this circuit carries a very small current)
Model XX-SRS relay socket to go with above relays, if you want to plug the relay into a socket
instead of using female spade lugs plugged directly onto the relay’s lugs. (Extra fluff.)
~$6 US, online
Any of the other 12VDC relays on their web site will work, but will require soldering the wires to
solder lugs or pins. The better, simpler way is to use crimped-on, Quick-connect, spade lugs.
Digi-Key
On the relay page, apply a filter for ‘12VDC’, ‘Automotive’, and ‘Quick-connect’ to take you
directly to the type needed.
Some recommended part numbers:
PB685-ND, $2.59 US, online
255-1828-ND, $4.30 US, online
and any others of this type will work.
You may find one at your local auto parts store. Buy it and save on shipping. Remember, it only needs to
have a 12V coil and one set of “normally open” contacts. Just about any auto relay will work; they are very
common.
Also helpful, is the use of 2-to-1 spade adapters, with ¼" blades, to add additional wires at Relighter
terminals T1 and T3. Thanks goes to Paul Gloger for this suggestion. See his suggested wiring details below.
Radio Shack
Quick-Disconnect Adapter Set (8-Pack)
Catalog #: 64-3064
$1.99
