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How to calibrate a protech 500 thermostat - Ruud UBHC Air Conditioner

Posted by Anonymous on

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Posted on Jan 02, 2017

atocrxr
  • 135 Answers

SOURCE: 2 Rheem Protech 500 thermostats, 1 upstair & 1

Have you checked to make sure that all of the supply registers are open, the air filter is clean and nothing is blocking the return air grill?
It almost sounds like you could be cycling on a limit switch.
Usually on gas furnaces, the blower is controled by the onboard controls, in the cooling mode the thermostat will control the blower.
I would be looking past the thermostat, at the furnace it self.
I hope you find this helpful. If you continue to experience problems, please let us know and we will dig deeper. :)
Paul

Posted on Apr 04, 2010

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1 Answer

Air conditioning not working. Have White-Rodgers thermostat 1F79111, I think. Replaced batteries. Now have flashing signal like an asterisk. What does it mean?


Blinking snowflake means it's on time delay for cooling to come on (usually 5 minute time delay to prevent compressor short cycling). Solid snowflake means cooling is on

Aug 03, 2016 | White-Rodgers (Protech) White Rodgers...

Tip

Lux Thermostat 500


The Lux 500 Thermostat is an affordable programmable thermostat that gives you a very easy way to customize your heating and cooling temperatures to your schedule. The programming of this thermostat is easily the simplest that I have found in a programmable t-stat.

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The Lux 500 series thermostats are a great economical way to reduce energy and utility expenses by raising or lowering your temperature settings a the times you set. The installation is so easy that most any DIY’er can install this thermostat. It has an easy to read display and the rotary dial makes the programming very user friendly.

A few of the other great features of this unit are, a keyboard lockout, and an air filter reminder.

This thermostat can be used on any 24v AC or 750mV single stage conventional heating/cooling system. Single stage heat pumps without auxiliary heat will also work with this thermostat.

Here is a summary of the features of this thermostat

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  • 5 - 2 Day programming
  • 4 Periods per day
  • Large easy-to-read display
  • LUX patented user-friendly Speed Dial®
  • Filter usage monitor and alert
  • Default Energy Star approved program
  • Temporary Temperature Override
  • Temperature Hold
  • Keyboard Lockout
  • Temperature Calibration
  • Swing Settings #1 - #9
  • Fahrenheit or Celsius temperature Scale
  • 12/24 Time Format
  • Low Battery Warning Indicator
  • Mercury Free


As you can see this thermostat will give you a lot of great features at an affordable price.

on Jan 16, 2010 | Heating & Cooling

1 Answer

Where can I purchase a protech 520 thermostat


Probably from Amazon. Otherwise, if you want to purchase one locally... which country do you live in?

Aug 12, 2014 | Heating & Cooling

1 Answer

Ruud thermostat protech 500


Replace the thermostat.

Dec 05, 2013 | Heating & Cooling

1 Answer

2 Rheem Protech 500 thermostats, 1 upstair & 1 downstairs with a Rudd Achiever 90Plus gas furnace. Thermostat downstairs works fine but upstairs one cycles fan on and off 2-3 times during heating...


Have you checked to make sure that all of the supply registers are open, the air filter is clean and nothing is blocking the return air grill?
It almost sounds like you could be cycling on a limit switch.
Usually on gas furnaces, the blower is controled by the onboard controls, in the cooling mode the thermostat will control the blower.
I would be looking past the thermostat, at the furnace it self.
I hope you find this helpful. If you continue to experience problems, please let us know and we will dig deeper. :)
Paul

Feb 13, 2010 | Ruud UBHC Air Conditioner

1 Answer

Heat/AC unit will not kick on.


sounds like spark ignition coil bad the little fan combustion fan will run even after a fail ign attempt.
turn off power/restore power the unit will try to fire the part is easilly avail and easy to replace

Jan 18, 2010 | Ruud UBHC Air Conditioner

1 Answer

My 500 protech Ruud thermostat which is new was installed by the dealer powered direct and without batteries. When the electrical power fails the differential and temperature return apparently to a default...


HI; Yes You can pull the cover off(gently) and put in batteries. The installer should have done this for You and should have left You with all the operation manuals. They should also have informed You on how to change the batteries as well...alpharome416

Jan 14, 2010 | Ruud UBHC Air Conditioner

1 Answer

RUUD (Protech Model 500) Thermostat Single Stage Not Programable


problem is not the thermostat, thermostat is an on-off switch that happens to work on temperature. Your furnace is locking out. cycling the heat off switch resets the micro-processor in the furnace. You need to diagnose the problem in the furnace, to go further we will need the model and approximate age of the unit

Dec 11, 2008 | Ruud UBHC Air Conditioner

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