Question about Honeywell S8910U Radiator Heater

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Honeywell s8910u not working, LED doesnt blink seems i replace this ignition every 3-4 years is this typical

The furnace does purge, but thats all it does

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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

  • 252 Answers

SOURCE: My Honeywell programable thermostat started

sounds like a solid state relay or transformer in the thermostat is going bad - thermostats are not repairable - replace

Posted on Sep 29, 2009

shastalaker7
  • 1515 Answers

SOURCE: Honeywell thermostat TH6110D1021. Blower comes on

Hi, You are right, fan is on a time delay in the heating cycle, and after burners fire that is when this delay comes into play. You have a preset factory temperature that determines the cycle on time for the fan, and the off time after the burners shut down also. This will not be in the thermostat, but in the fan/limit control the is mounted on the face of the furnace, with a probe inserted into the fire box.Depending on how old or new this unit is, will depend on the type control you have.It may be just a high limit switch, or the 1st I mentioned.If so, It rotates in the burner as the temperature rises, to turn the fan on and off.Disconnect power, remove cover, and 2 screws.Slowly remove the control and gently clean the probe. Turn the dial if this one has it and you will be able to hear it click. This click is contacts closing to start fan operation.Reinsert and try again. If problem continues, you will have to replace it.They do tend to stick closed/on, in the heat cycle from time to time and a cleaning sometimes will solve this problem. Not knowing how old this furnace is and type, make it difficult to give you a correct diagnosis, so check this fan control as I have explained, and if your system is of a different type, please let me no so I can correct this problem. Sincerely,
Shastalaker7

Posted on Dec 11, 2009

  • 13 Answers

SOURCE: batteries died on my honeywell RTH230B replaced but furnace won't

you will have to reprogram it according to the operating manual.
The manual is available on www.manualnguide.com

Posted on Feb 02, 2010

  • 102 Answers

SOURCE: I had my 3 year old mid-efficient furnace serviced

Sounds like the switch that controls the blower is faulty. It should heat up then come on at preset temp. As for the stat where is it located. It should be located 60" off the ground not in any direct sunlight and make sure it is insulated behind the stat. You could have more heat loss in those rooms too. IE poorly insulated windows air penetrating through outlets do those walls face the wind? Is the stat located next to a heat supply?

Posted on Dec 16, 2010

Testimonial: "Thank you! I will look into getting the switch checked and verify the stat location. I appreciate your assistance! "

  • 1033 Answers

SOURCE: I have a Honeywell furnace model #M1MB 070A BW.

Hello, first turn off power to the Furnace, then remove igniter from bracket and unplug molex connector. Then take the igniter to a Hvac supply store and get new one, reinstall it into bracket plug into molex connector and turn furnace back on.

Posted on Mar 05, 2011

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I have a RHEEM RGUJ-05EA-ER GAS FURNACE in my attic. early in the morning and late at night when the temperature is low it does not trigger on. The thermostat is new as well as the HOT SURFACE IGNITION...


Couple ideas here. First is make sure the thermostat is level. Most do not work unless they are level. Second, make sure there is enough fresh air. It make have a low oxygen sensor which keeps it from lighting.

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Led blinks three times and no ignition.


ignitor is bad or board not feeding it power or air switch is bad or draft motor not running fast enough

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I have a hose loose on furnace not sure where it goes


your flame sensor may need to be cleaned its the metal rod in front of the burners. You can take sand paper and clean the carbon build up off of it. Do not over sand it just lightly sand it

Feb 27, 2013 | Honeywell Furnace Gas Valve Sv9501h2409

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I have a goodman furnace GMP100-4 REV B..about a year ago it was not working. The fan would start but it would not ignite. We found out we need a new ignitor and it was a good quick easy fix. Now a ye


Any light flashin on the control board? If not then look for a small fuse blown on the board. See lights a flashing count them flashes

A sampling of various failure codes on a furnace:

Read one LED flash that stays on continuously to mean your furnace has no signal coming from the thermostat and will not operate. Turn the power off and check the thermostat for improper settings or connections.

Interpret one LED flash that blinks on and off to mean your furnace has locked out because it could not ignite after three tries, and must be reset. Interrupt power to your furnace for 20 seconds or lower the thermostat so your furnace does not try to heat, then reset the thermostat to the previous setting. After one hour of lockout, your furnace will automatically reset itself and try to operate as usual.

Decipher two LED flashes to mean the draft blower is not working, or your furnace has a short in the pressure switch circuit. Turn off the furnace power and repair a short or replace the pressure switch.


Read three LED flashes to mean your furnace has an open pressure switch circuit or it has an induced draft blower operating. Check the pressure switch hose of your furnace for blocks or an improper connection. Also, look for blockages in the flue, and tighten any loose wiring.

Translate four LED flashes to mean your furnace has a primary limit circuit open, possibly from loose wiring or blocked filters. Check and clean filters, tighten wiring and check the flue for blockages.

Interpret five LED flashes to mean your furnace senses a flame without a call for heat. This could be from a gas valve closing slowly or a burner flame lingering.



Read seven LED flashes as a warning of a low flame sense microamp signal. This could happen with a coated flame sensor or a lazy flame from poor gas pressure. Turn off the power and adjust the gas pressure according to the information on the rating plate.



See eight LED flashes as meaning an igniter circuit problem due to a bad igniter or an igniter connected improperly. Replace the bad igniter or check the ground wiring, making necessary corrections.



Decipher nine LED flashes to mean the high-stage pressure switch circuit will not close during a high-stage-induced draft blower operation. Your furnace may have a pinched or blocked pressure switch hose, a blocked flue or loose wiring.

Read continuous flashing on the LED to mean your furnace has a reversed polarity of 115 volts. Turn off the power and correct the wiring polarity after reviewing the wiring diagram.

Nov 29, 2011 | Goodman Heating & Cooling

1 Answer

S8910u


Hi!
NO you can not, as the S8910U module is for hot surface ignition and the S8610U is for intermittent pilot ignition. Sorry!

Jan 01, 2010 | Honeywell S8910U Radiator Heater

1 Answer

Goodman GDS80904BNA LED Blinks 3 Times


had similar problems with same furnace. I think the 3 blinks is high limit event. either way with the power off to the furnace remove the board from the 4 clips holding it on one at a time then turn it over and look at it you will be able to tell if the board is bad because it will appear scortched and the resin will be bubbled up where it went bad. replace board and you will be fine. went through 2 in 2 years all of a sudden they are being made by a different company from the original and the 1st replacement. now all is fine. Take a good picture of the board close up so you can reconnect all the wires properly. Friend of mine got it from a wholesaler for $55.00

Dec 12, 2009 | Goodman GMS90703BXA Heater

1 Answer

Thermostat at 70, shuts off at 62. stays only 1/2 hour at at time


What LED are you talking about that keeps flashing?

If it's the LED on the controller board in the furnace, they blink with a cadence that you need to watch. There will be a data sheet somewhere on the furnace that will tell you what the cadence (flash cadence) is.

Replay back and I can help you more.

Jan 30, 2009 | Goodman GMS90703BXA Heater

9 Answers

My becket honeywell r7184p oil burner monitor is not resetting it keeps blinking a fast green. What should i be looking for?


my Beckett oil burner with a honeywell R7184P just did the same thing. Quit burning, blinks for half a second. The burner says press reset once, if it does not reset then call a local serviceman. It is cold here in Alaska, you betcha', and my oil must have jelled up. It happened once, but pressing reset solved my problem, two days later it stopped again. I applied heat (hair dryer) to my supply line, added an anti-jelling solution to my tank. Here is what I found.

"The Honeywell R7184P-1080 (interrupted control—transformer shuts down 10 seconds after flame is established) is now the standard control used on all Beckett oil burners along with the new “Cleancut” pump. The Honeywell control has both a 15 second pre-purge and a 15 second post purge feature, as well as internal self-checking of the control itself. The control has 15 second lockout timing plus a 10 second ignition carry over period. After 3 lockouts during the same call for heat, the control goes into restricted lockout., A restricted lockout condition may be reset by holding the reset button down for 30 seconds until the LED flashes twice. At any time the control is powered, the reset button may be held for 30 seconds to reset the lockout counter. There are several new “Service Features” with the R7184P control that make for easier servicing."

You have to press the reset button for thirty seconds. I don't know how cold it it there, or what number oil you guys are burning, but what I do know is that you guys have been pressing your reset button more than once.

This worked for me. Good luck.

Jun 12, 2008 | Heating & Cooling

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