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Last 10 Posts (In reverse order)
fatima mehru Posted: Friday, November 10, 2023 1:52:00 AM(UTC)
 
It seems like your Carrier Day & Night Furnace is experiencing ignition issues, leading to prolonged heating cycles and cold air blowing into the house. To address this, you may want to check the flame sensor for dirt or corrosion, as a clean sensor ensures proper ignition.

Additionally, inspect the gas supply and pressure, ensuring it meets the furnace requirements. Check the air filter for blockages, as a dirty filter can affect airflow and heat distribution. If these steps don't resolve the issue, it's advisable to consult a professional technician to thoroughly assess and troubleshoot the furnace for more complex problems that may require adjustment or replacement of components.
ernesto1959 Posted: Friday, January 9, 2009 1:09:52 PM(UTC)
 
Originally Posted by: IdahoBiker Go to Quoted Post
Well at this Point the Blower is Coming on 1st (Hi-Speed // 2-speed Motor)
then after 10-12 minutes the furnace starts the ignition process...so HOW do I correct this Problem? When the Blower Motor was Changed out, the Serviceman swapped out the Old Motor with the New, and informed me that The wiring was different, but that He knew How to correct that, as he had done that many times, I'm wondering If he got his Wires Crossed:rolleyes:, pardon the Pun. the Bottom Line is I have a Lot of $$$ tied up in New Parts, and just want it to work right.In response to the "Set-Delay", it's NOT doing that: It comes On, and goes Out (repeats this Process 6-9 times, before It Ignites Constant) So what do I need to do to Troubleshoot & Repair?

Any ideas on WHERE? I can attain a Parts Schematic for this Furnace? It's a Model 397HAW036060 Day & Night (Mfg. by Carrier) in 1982
"day and night comfort.com " is the web site or call carrier (totaline stores) they have a website.
icehouse Posted: Friday, January 9, 2009 5:43:36 AM(UTC)
 
Amazing that OP asked about "fan control' and gets a thermostat procedure. :rolleyes::rolleyes:
Anyhow :
Combination Fan & Limit Control: This control turns the furnace blower on and off at the proper times. The FAN ON setting on this control makes sure that the blower fan does not turn on (even though the building thermostat has asked for heat) so that the furnace wont' blow cool air into the occupied space.
Furnace FAN ON: When an adequate warm temperature has been reached inside of the furnace warm air plenum chamber the FAN ON switch turns on the furnace blower to deliver warm air to the occupied space.
Furnace FAN OFF: The furnace combination fan and limit control FAN OFF setting lets the furnace blower continue to run for an interval after the furnace burner has turned off, but will shut the blower off after the heat exchanger has been cooled down and the heat it contained has been sent to the occupied space.
Furnace LIMIT: The LIMIT indicator setting is a safety control that will turn off the oil or gas burner if temperatures inside the warm air plenum exceed a safe level.
When does the furnace blower turn OFF in normal operation?

When the thermostat has been satisfied and turns off the oil or gas burner at the furnace, the fan limit switch will cause the blower or fan unit to continue to operate until the temperature at the supply plenum has reached or dropped below the "cut-in" or "fan-on" lower limit on the switch.
When does the furnace oil burner, gas burner, or other heat source turn OFF in normal operation:

On most heating systems the burner or heat source will continue to run all of the time that the building thermostat is asking for heat, and will stop running as soon as the thermostat is satisfied. If the furnace oil or gas burner is very high capacity, or if the furnace fan/limit controls have been set to cause this effect, the burner may on some systems cycle on and off periodically while the warm air blower continues to run.
ernesto1959 Posted: Friday, January 9, 2009 12:52:48 AM(UTC)
 
Turn off the power at the furnace, jump w -r ( white wire to red ) that comes from t/stat, (24 volts) , colors may not match but terminals in unit , yes so jump w-r...... T/stat must be in off position and fan in off . turn on the power and just heating mode need to come on; fan must be off. take the time , must be on really quick just when powered. ..must hold unit burning for a couple of minutes and then the fan must turn on.
icehouse Posted: Thursday, January 8, 2009 1:23:54 PM(UTC)
 
Try this : http://customer.honeywel...pdf/69-0000s/69-0117.pdf :) wiring diagrams at end.
IdahoBiker Posted: Thursday, January 8, 2009 1:21:14 PM(UTC)
 
Originally Posted by: icehouse Go to Quoted Post
Read this from an article which appeared in the "ACR News":
Delayed Ignition:
Delayed ignition occurs when the main burners do not ignite within the four-second requirement. Delayed ignition can be extreme enough to cause a small explosion shooting flames out from the furnace.
If a customer claims to have a delayed ignition problem, inspect and repair the problem before you test the furnace. This is one of the only times a repair is suggested prior to cycling the unit because of the danger of explosion during appliance operation.
If delayed ignition occurs, check the following:
CAUTION: Stand to the side when testing a delayed ignition problem. The flame could roll out causing severe burns or death.
1. Look to see that the pilot location is correct and the pilot size is sufficient.
2. Ensure that the carryover on the burners is clean and aligned with the adjoining burners.

The Pilot appears to be Aligned Correctly, as is the Igniter. When it Cycles it gets Good? Spark and the Flame is about 3/4"-1" long. The Carryover appears to be working Correctly, and when it burns the Flame is Blue, all Burners appear to be Burning the Same.
IdahoBiker Posted: Thursday, January 8, 2009 1:12:30 PM(UTC)
 
Originally Posted by: kanic Go to Quoted Post
Do you have your blower in the low speed for heat?
are you able to set your fan & limit control and Air temperture switch?

No, the Fan is On Hi-Speed. I could Change the Fan Limit Control if you could give me a "Walkthrough"...the Fan is Coming on BEFORE the Burner.
IdahoBiker Posted: Thursday, January 8, 2009 1:07:45 PM(UTC)
 
Well at this Point the Blower is Coming on 1st (Hi-Speed // 2-speed Motor)
then after 10-12 minutes the furnace starts the ignition process...so HOW do I correct this Problem? When the Blower Motor was Changed out, the Serviceman swapped out the Old Motor with the New, and informed me that The wiring was different, but that He knew How to correct that, as he had done that many times, I'm wondering If he got his Wires Crossed:rolleyes:, pardon the Pun. the Bottom Line is I have a Lot of $$$ tied up in New Parts, and just want it to work right.In response to the "Set-Delay", it's NOT doing that: It comes On, and goes Out (repeats this Process 6-9 times, before It Ignites Constant) So what do I need to do to Troubleshoot & Repair?

Any ideas on WHERE? I can attain a Parts Schematic for this Furnace? It's a Model 397HAW036060 Day & Night (Mfg. by Carrier) in 1982
ernesto1959 Posted: Wednesday, January 7, 2009 9:05:06 PM(UTC)
 
the unit first must turn on burners , then the fan must come on.
icehouse Posted: Wednesday, January 7, 2009 5:47:34 PM(UTC)
 
Read this from an article which appeared in the "ACR News":
Delayed Ignition:
Delayed ignition occurs when the main burners do not ignite within the four-second requirement. Delayed ignition can be extreme enough to cause a small explosion shooting flames out from the furnace.
If a customer claims to have a delayed ignition problem, inspect and repair the problem before you test the furnace. This is one of the only times a repair is suggested prior to cycling the unit because of the danger of explosion during appliance operation.
If delayed ignition occurs, check the following:
CAUTION: Stand to the side when testing a delayed ignition problem. The flame could roll out causing severe burns or death.
1. Look to see that the pilot location is correct and the pilot size is sufficient.
2. Ensure that the carryover on the burners is clean and aligned with the adjoining burners.