Question about Honeywell Programmable Thermostat Heater
Installed Honeywell thermostat RTH7500 Series, the words "permanent hold" appear on lower right corner of display.... any ideas or solutions please???
Press run program.... from there, set the schedule for maximum efficiency. permanent hold only shows up after the hold button has been pressed 2-3 times. If this does not fix the issue, there is a master reset button on the thermostat that will set all settings back to factory default.
Posted on May 17, 2009
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Posted on Jan 02, 2017
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