Question about Heating & Cooling

1 Answer

Janitrol GMP124-5...furnace start up sequence ends after the igniter glows...there is no ignition (main gas valve does not open). There is a ''one blinking light'' error. (message states ''gas flow, gas pressrure, gas valve, flame sensor...). I checked flame sensor and it is fine (verified via testing). What is next step to check to identify root cause?

Posted by on

  • 1 more comment 
  • michael_l842 Feb 04, 2010

    Service company indicated they had to reset the rollout switch (then the furnace fired up). Service company says the HX is bad and it would be best to replace the 15-yr old furnace at a cost of $1750. SHould we test the rollout switch first before replacing the furnace?

  • michael_l842 Feb 04, 2010

    I do not smell any fumes near the combustion chamber..the furnace is 15 yrs old...I cannot see the HX...what is the best way to inspect HX?

    Would a blocked waste gas stack cause this?

    If I reduced the gas pressure slightly? Need to buy time to keep in service while I troubleshoot and shop around.

  • michael_l842 Feb 04, 2010

    The service company said there is a slight crack in the burner manifold, they also said a small portion of the flame is not going into the HX, especially when the blower motor comes on (flame fluttering more pronounced when blower comes on).

    The service company did not inspect the HX, just hypotheized either blockage or crack....

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Heating & Co... Master
  • 2,597 Answers

Hi try the pressure switch, clean the flame sensor

Posted on Feb 02, 2010

Testimonial: "It sure is nice to have a cyber expert (an impartial one...who is not tryiny to sell)who knows how to troubleshoot, excellent advice and very timely."

  • 1 more comment 
  • Paul Carew Feb 04, 2010

    Hi right this will all come down to the state of the heat exchanger is it split or just old , is it giving off fumes ???



    If it is old then it must be worn out so it will mean a new unit now a new reset switch is a short fix only, you will need a new funace ,but you can only buy now high effency furnaces 95 % etc so you can shop around and get discounts for having 1 fitted gov redates etc you may have seen this on the news etc ,



    hope this helps

  • Paul Carew Feb 04, 2010

    Hi no not the stack, do not touch the gas pressure that is set you will cause problems more than what you have ,



    shine alight up above the burner that is the heat exchanger you should be adle to see what it looks like did they sat it was split or just old ........... did they say any thing else

  • Paul Carew Feb 04, 2010

    Hi if the burner is cracked the you need to change the burner they can split with the heat over the years .(15 ) flame fluttering could well for burner being split , you cannot guess hx with out looking or putting a smoke peliet in the heat exchanger and see if the smoke goes out of the stack , or comes back in too the room the you know its split ,

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Furnace wil, not ignite when calling for heat


For this answer, we need a model and serial number.
Generally, be sure the power is on, does the heat moving device run? (Fan for air, or pumps for water)

Nov 02, 2017 | Heating & Cooling

1 Answer

My furnace will not ignite


If it has a glowing igniter, that must mean it is a Gas furnace?-- LP or Natural Gas?-- We need to establish a few things like:
1.) Is there a good supply of Gas?
2.). When the Igniter starts to glow, can you hear a gas valve click'?- and then is there a small flow of Pilot gas? (over the area where the burners will need to flow gas-- so the gas in the burner tubes can be ignited safely.)
3.) There is a circuit somewhere in there, that detects that you have established FLAME-- (Usually a 'flame rod' that allows the main gas valve to open.) Can you see the 'pilot flame' touching that rod? A very small electric current is actually conducted thru the flame, -- completing the circuit that allows the safety circuit to go to the next step, before it opens the main gas valve.)
These things have to exist, before the safety circuitry allows the main gas valve to open.
Tell us more, what you observe, as you try to start it again.
Mack B

Nov 29, 2016 | Heating & Cooling

1 Answer

What's wrong with my furnace?


The relay for the motor is stuck or the points inside the relay are arced closed. Replace the relay.

Apr 26, 2016 | Goodman Janitrol Amana Goodman Janitrol...

1 Answer

My York furnace sometimes doesn't completely ignite


A noisy inducer probably is headed for replacement.

The igniter can produce a healthy glow and still be defective. Mine had to be replaced with a new, improved one.

The thermocouple could be defective even though it seems to open the gas valve when it should.

The heat sensor in the bonnet could be defective. That controls main blower operation.

The heat exchanger could be cracked.

Jan 10, 2014 | Heating & Cooling

1 Answer

Goodman furnace Model GDS80703AXBB -fan comes on then igniter light comes on, then burners turn on but shut off right away and wont stay lit. Now igniter light wont come on so burners not coming on at...


Sounds like either the flame sensor is not working.
The sequence for starting the furnace is:
1. extraction fan on
2. pressure sensor (for fan)
3. ignitor (spark or glow plug) comes on
4. gas valve opens up
5. ignition of flame
6. flame sensor (or temperature sensor)
7. plenum temp. sensor
8. main fan starts
It is most likely that the flame sensor is dirty or gone,
or (and I hope not), the module is gone and needs to
be replaced.

Sep 10, 2017 | Heating & Cooling

1 Answer

For some reason the heater does not generate heat. the fan works but no heat. Any Ideas?


I've got an easy way for you to check, and then we can help you from there.
First pop open both lids to your furnace (this may require a screwdriver). Turn up your thermostat, push the safety interlock button in if it has one (it's a button that turns off the power when the doors are removed), and watch.

On most modern furnaces (past 20-25 years) you'll hear/see:
1. Inducer fan
2. orange glow (ignitor)
3. Gas valve opening and ignition (flames)
4. Main Fan.

that's normal heater operation.
The most common issue here is a burned out ignitor, in which case you wouldn't see the orange glow but the sequence would attempt to continue anyway (the gas valve will open and hiss gas, but it won't lite, then it'll give up and try again a few minutes later).

On older furnaces there's a pilot light to start with, the click of the gas valve and boom... ignition.

On new furnaces it's
Inducer fan
gas valve opening
spark - ignition
Main fan.

and there are some oddballs in between, particularly the Lennox Pulse. If that's your furnace just back away slowly and call a professional... some guys won't even touch those, so be sure to mention what it is... if you call a pro.

So go ahead and watch it run, then tell me/us what you see.

May 06, 2011 | Bionaire Heating & Cooling

2 Answers

I have a coleman evcon furnace and it wont work it gives me a flash code of 1 what does it mean


One flash mean ignition failure. The sequence is: T-Stats calls for heat, inducer motor comes on, igniter glows orange (look through glass), then gas comes on and burner lights, approximately 1 minute later the indoor blower comes on. If you don't see the glow, most likely the igniter is bad. If you see the glow but no flame, it's a gas problem, supply or defective valve.

Dec 26, 2009 | Tools & Hardware - Others

1 Answer

Furnace will not light. Igniter glows but no gas


Make sure that the switch on the gas valve is in the on position. If it is and the gas valves coming into the furnace are open, you probably have a bad gas valve.

Oct 03, 2009 | Heating & Cooling

1 Answer

Janitrol furnace wont ignite


it is probably a bad hot surface ignitor

Jan 29, 2009 | Kitchen Appliances - Others

2 Answers

Ignition failure after three attempts then sits for an hour.


try cleaning the burners and or adjust the distance the igniter is from the actual burner .

Oct 01, 2008 | Goodman GDS80904BNA Open Flame Heater

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

348 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

2597 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...