unknown fuses

[ziggyspop]

My '09 Salem 28' w/slide has 2 fuses and one breaker that I can't decipher.

The fuses are labeled "ST" (15A) and "DSI" (3A)

The breaker is also a "DSI" but the breaker is 15A. Puzzles me why a component would need both a light fuse and a heavy breaker.

Anyone know?

[Norm4015]

DSI = Direct Spark Ignition which is the way the water heater is lit. In the old days the pilot light in the water heater was lit with a match. With DSI 12-volts sparks and ignites the LP to fire the water heater. If your water heater is also heated by 110-volts you will have a 15-amp circuit breaker for the heating element. So you water heater needs both low voltage 12-volt DC and 110-volt AC.

[Francesca]

Not me!

But a friend of mine has a Salem and he's gotten lots of info from the Salem usergroup over at the Forest River site.
Hope it's O.k. to send you over there...but you'll be back, right?
Here's the link:Salem - Forest River Forums

Hope this helps!

Francesca

[ziggyspop]

Thanks,

Most everybody seems to agree about the DSI but there's a lot of guessing going on over there about the "ST" fuse.

[Francesca]

Any chance there's a wiring diagram in the owner's manual?
Some mfr.'s include them from what I hear.
Those things are gold, if you can find them...
Seems like the fuses etc. would be listed there.

Just a thought!

Francesca

[ziggyspop]

Turns out the "ST" fuse is for the AM/FM radio.

I contacted Tony Hufnagle at Forest Wood and he deciphered most of the electrics correctly (except for "MIC" which he identified as the "outlets"). They want $15 for a general trailer users guide that's not brand or model specific and told me that publishing wiring diagrams is generally pointless since the wiring is subject change without notice.

[Francesca]

Thanks for keeping us posted!
How existing wiring can be "changed without notice" is beyond me
That general guide sounds like it might be handy...

Boy, I'm having a geezer moment here-
I can remember when anything that was wired came with a wiring diagram!

Francesca

[wa8yxm]

Though DSI does indeed stand for "Direct Spark Ignition" can it stand for anything else?

I mean think bout the letters DNS.. (Domaine Name Server, Distant Network Service, DO NOT SELL) and more. Off hand I can not think of another expansion of DSI but, I'll bet there is one.. And it is clear from the "It feeds the radio" on ST, that...... The labels are WRONG.

[ziggyspop]

Quote:

Originally Posted by Francesca How existing wiring can be "changed without notice" is beyond me

Apparently it's not the existing wiring that changes. It's the fact that the wiring you have may not match the wiring on the diagram they send you. They may start picking up power for something at a different point tomorrow than they did today because it saves 16 feet of wire per unit. The new splice will be in a different place in the unit than it is on the diagram and where you'll look for it.

In my last post I said I contacted Tony at Forest WOOD; I meant Forest RIVER!

[Norm4015]

Quote:

Originally Posted by wa8yxm Though DSI does indeed stand for "Direct Spark Ignition" can it stand for anything else? I mean think bout the letters DNS.. (Domaine Name Server, Distant Network Service, DO NOT SELL) and more. Off hand I can not think of another expansion of DSI but, I'll bet there is one.. And it is clear from the "It feeds the radio" on ST, that...... The labels are WRONG.

ST = STereo = radio

[ziggyspop]

UPDATE!!

I got another phone call from Tony Hufnagle at Forest River this morning. He wanted to check that he had told me about the "other fuse"... which he hadn't.

It seems that the AM/FM radio gets its power from the circuit protected by the 15A "ST" fuse but that fuse is not intended to protect the radio. There is a separate 5A in-line fuse in the power lead behind the radio that does that. It is accessed by removing the radio from the cabinet (a screw in each corner, may be behind surface plugs). I haven't looked but I'm expecting a glass tube BUSS-type fuse.

He indicated that the 15A circuit for the cabinet could carry televisions, CD/DVD players/recorders in the same cabinet or that other electric components elsewhere in the trailer may be fed by the "ST" circuit.

Whodathinkit?