Forum Discussion

Janie_Ryan's avatar
Janie_Ryan
Explorer
May 15, 2015

thermostat display blank and furnace not working

My thermostat display is blank. I've checked fuses, . power to trailer (both battery & electric. I've taken thermostat cover off to see if requires batteries ( it doesn't ). Help. Need heat this weekend.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    May 16, 2015
    12V DC power comes from a fuse in DC dist panel

    If thermostat display doesn't light then fuse is blown OR t-stat needs reset.
  • sdianel_-acct_c's avatar
    sdianel_-acct_c
    Explorer
    May 16, 2015
    unplug the phone line at the bottom, wait 1 full minute and plug it back in. That worked for ours. Also there is a reset procedure. What brand and model thermostat is it?
  • jdb7566's avatar
    jdb7566
    Explorer
    May 15, 2015
    There may be a fuse, atc type on the furnace motherboard that you would access from the outside panel. Look for a broken or loose wire.

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