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White rodgers 50A50-474 flashing three times

LED flashing 3times indicating pressure switch problem. What is the fix?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

kentguidry
  • 51 Answers

SOURCE: MHU45LP won't fire

The pressure switch to which you are referring is the switch connected to the suction side of your induced draft fan. This pressure switch will have a hose connected between the switch and the induced draft fan. Please let me know if you need any more assistance.

Posted on Feb 17, 2009

  • 80 Answers

SOURCE: My Gas Furnace model# PBKM-LD20N140A will not

There is no reset button. The fault will clear itself upon cycling power to the furnace once the problem is corrected. The furnace has to establish air flow before it starts the ignition cycle. Check and make sure that your inducer motor is running during a call for heat and that the flue is free from restriction. eg. bird nests, animals, snow, ice etc.

Posted on Oct 04, 2009

  • 232 Answers

SOURCE: need help with a goodman gmt070 furnace

it may be clogged at the barbed fitting on the induced draft motor where the pressuer switch tubing connects. take a paper clip and **** it out make sure you can stick it thru freely till you can feel the Inducer wheel then reconnect and try again.

Posted on Nov 05, 2009

Therinnaiguy
  • 1420 Answers

SOURCE: Furnance is flashing 3 times indicating pressure switch failed

The 3 flashes is an error code. Most likely you have either a vent blockage, the inducer motor is not spinning fast enough to draw a vacuum on the pressure switch, you have a bad pressure switch or a blockage in the hose going to the pressure switch. You can **** lightly on the hose going to the pressure switch to close it or you can jump it out to test it.

Posted on Jan 16, 2010

  • 2458 Answers

SOURCE: burners go out after 8 seconds, fan come on,

hi flame sensor is a rod in the flame try cleaning this with some steel wool if not in could be the control box where the sensor conneted to

Posted on Jan 22, 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

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These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/

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We have a White-Rodgers 90 series thermostat that started beeping last night. We have had it for about 4 years. Does it have a battery? I couldn't find anything about that in the manual.


Susan, the "90" series of thermostats covers a couple of different thermostats made by White-Rodgers. Here's how to find your model number. With that info, I can check the manual specific to your thermostat.

In the mean time, check the display for the word BATTERY or BAT. (Flashing) on the display. Battery flashing or blinking on the digital display indicates low batteries. If the batteries have recently been changed and the thermostat continues to indicate low batteries, use a pencil eraser to polish each of the battery contacts inside the back of the thermostat. Do not bend them up and down when polishing or you might break them. When complete, they should all be as shiny as a mirror. This will assure proper battery back-up, allow the backlight to work correctly and remove the flashing battery symbol from the screen. Battery (Solid) on Display The battery symbol (not blinking) indicates a loss of power (24 volts) from the heating and cooling equipment to the thermostat. Normally the heating and cooling do not operate when the battery indicator is on. If the battery indicator is on, check the fuses or breakers, make sure the furnace is switched on, and verify the blower compartment door is closed properly. The battery display is designed to indicate the thermostat is running on batteries, so replacing batteries has no effect on the indicator. See No Heat/No Cool for more information. Note: Some heat only systems (zoned systems) disconnect power from the thermostat during a normal heating cycle and display the battery symbol. Millivolt heating systems always indicate battery because they do not supply 24 volts to the thermostat.

A beep often is provided as audible feedback when keys are depressed on many thermostats. You should check to make sure that no key is stuck in the "in" position or is otherwise activated.

Jan 10, 2011 | White Rodgers Water Heaters

1 Answer

Hi, the lights on my circiut board are flashing the one on the left is on all the time and the one to the right of it flashes two times and then waits and then flashes two times again


Error Codes
A green LED indicates system faults
Steady On: System OK
Steady OFF: Board control fault or no power applied
1 Flash: Ignition failure (control in one-hour lockout)
2 Flashes: Pressure switch fault, fails open (switch is
stuck open)
3 Flashes: Limit switch open (main or auxiliary)
4 Flashes: Pressure switch fault, fails closed (switch is
stuck closed)
A yellow LED indicates flame status
Steady on: Normal flame is sensed
Flashes: As flame weakens, frequency of LED flashes
increases

hope this is helpful.

Dec 21, 2010 | Ruud Central System Air Conditioner

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The light sensor is yellow, what does that mean?


The LED indicator shall illuminate YELLOW when second stage heat or second stage cool is being called.

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Standby indicator light on TV flashes - Sony TV


Hi,
    Please check fisrst that indicator liight (LED) blinks how many times.it could be from 1 to 8 times and the interval would be of three seconds.So, count the led flashes how many times and then tell me i will try my best to find and fix the solution.

Thanks 

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