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Vipergtrdj's avatar
Vipergtrdj
Explorer
Jul 19, 2019

Sandpiper 33ft ac question

Recently picked up a 1997 33ft sandpiper TT. The previous owners wired the AC always on, and has no thermostat. I cant find any diagrams on how its wired. Looked online and came up blank. There are 4 wires, blue, yellow, red, orange. The Y,R and O are wire nutted together and AC blows cold. What is the blue wire? It's not connected to anything.

The unit is a duotherm m#57015.621.

2 Replies

  • wrgrs50s's avatar
    wrgrs50s
    Explorer
    Jul 19, 2019
    The blue wire probably relates to the furnace unless you have a separate thermostat for that. You might try looking up a schematic for a duotherm thermostat rather than the AC unit.
  • WayneAt63044's avatar
    WayneAt63044
    Explorer II
    Jul 19, 2019
    None of my drawings (old 2000 or new 2012) have an orange wire listed for the duo therm 57915 although both old and new are the same. Perhaps someone has info on a 57015 although I didn't find it on-line.

    Actually full time cool would sound good to me today as it reached 100 degrees here.

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