Pro-Tech Thermostat 520

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  • Posted by anthonybare on Sep 9th, 2010 at 7:16pm

    how do you wire this one. I have it hooked up. Heat is on when the therm is on cool mode.
  • Posted by mgoldin1 on May 23rd, 2010 at 8:03am

    Please help find the manual for this Pro-Tech Thermostat
    need the wiring diagram and instructions for this unit
  • Posted by bkbelton on May 2nd, 2010 at 5:28am

    reset button
    The thermostat is on 65, and the house temperature has been on 80 for over 5 hours. Will the reset button correct the problem?
  • Posted by danny on Mar 12th, 2010 at 3:39pm

    lost manuel for thermostat
    somehow lost manuel....please help to find manuel
  • Posted by bootsey on Sep 23rd, 2009 at 11:29am

    operator manual
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Can You Help With These Problems?

  • Posted by ncpozum on Apr 5th, 2014 at 12:54pm

    conventional ac w heat strip
  • Posted by jkocinec on Mar 25th, 2014 at 3:11pm

    I have a protech 520 thermostat fan set on manual
    I have a protech 520 thermostat fan set on manual by keeps blowing cold air even after desired temp reached. Also what is differential setting for and how do you set it.thanks
  • Posted by mshantrelle on Feb 5th, 2014 at 9:05pm

    My thermostat fan just stays on. Its blowing cold
    My thermostat fan just stays on. Its blowing cold air. What do I do? Thermostat protech model 520
  • Posted by seanswife4ever on Dec 4th, 2013 at 4:14pm

    thermostat has no power
    thermostat has no power
  • Posted by mikelorance3564 on Jun 5th, 2013 at 1:33pm

    No juice to thermostat just went through storm pushed reset breakers ok could thermo be bad now
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Member Tip

  • Posted by ssjones28806 on May 1st, 2012 at 5:07pm

    ac won't come on
    We turn it to cool and auto and the heat comes on. what do we do


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