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I have a Nordyne Intertherm split system Model MMHA-056ABHR-01. The blower starts and stops or oscilates when trying to heat. The burner ignites fine and the fan will run fine when put on continuous. But when the thermostat is set to auto and calls for heat the blower starts then stops.

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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

Hi there,
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Posted on Jan 02, 2017

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  • 12 Answers

SOURCE: burner not full force

Could be your gas pressure is too low. Also, there is a particular type of spider that likes to get into the gas line at the gas valve and spin a little web in there. I have often seen this as the cause of low gas pressure. If neither of these is the cause, I would suspect a faulty gas valve.

Posted on Dec 16, 2008

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wbwill
  • 68 Answers

SOURCE: Carrier Weathermaker SX model 58SX060-CC Blower runs all the time

Remove all power from the furnace, it is likely the brain in the furnace is need of being reset, from the battery replacement, why did you change the battery, was there an indicator telling you to change it?

Many times just removing all the power to the furnace will do the trick with a reset, if not let me know and we will go from there, but it sounds like the main brain is confused or bad, more likely confused, so try the power removed first.

Than let me know wbwill@sbcglobal.net

Posted on Nov 22, 2008

tborn6
  • 700 Answers

SOURCE: Furnace Blower cycles on & off

check out the fan switch on the unit and make sure that its the correct one. it should cycloe on @ 120 degrees and cycle off around 100 degrees. Someone may have put in a different one and that is not the approve one.

Posted on Dec 23, 2008

  • 1214 Answers

SOURCE: rheem heat pump. blower will not turn off

The fans are set to delay for 60-90 seconds to remove all heat from the heat exchanger/heater elements.

If the fan runs any longer than 3-4 minutes after the Emergency Heat shuts off, you may have a bad sequencing relay in the air handler.

Posted on Jan 27, 2009

meBNme
  • 334 Answers

SOURCE: Bad sequencer or fan relay?

does ANYTHING come on when set to heat?

Posted on Mar 06, 2009

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1 Answer

I have a nordyne intertherm furnace. Model # 902993...can I replace the blower motor with a different model? If so, what models can I use?


Use whatever you'd like. Match the horsepower and rpm, voltage and shaft size. likely will need a new capacitor too but that depends on what you get.

Sep 12, 2018 | Intertherm Heating & Cooling

1 Answer

MY outside unit will not kick on now I just had it filled and seem to not want to kick on so I'm thinking it a short or the new t-stat that was just replace over the winter heat side works fine


Turn breaker off. Wire nut the red, green and yellow. Turn breaker on. Check outside. If unit is running either your tstat is not setup properly or it is bad

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

Jun 17, 2016 | Intertherm Heating & Cooling

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1992 NORDYNE/INTERTHERM FEHA-015HA-01 DOES THIS UNIT HAVE FUSES


It should have a 3 or 5 amp fuse on the circuit board.

May 13, 2014 | Intertherm Heating & Cooling

1 Answer

Intertherm/nordyne furnace (24 years old)


Shut off power, get a small wrench, remove orifice spuds and clean them with toothpick. Take burners out and clean rust from them. Check and see if you are getting 24 volts to gas valve. If not replace it.

Feb 15, 2014 | Intertherm P3RA-048K Air Conditioner

1 Answer

Where is the flame sensor on Intertherm MGHA-070abfc-01?


There is no flame sensor per se, unless it has an ignition type pilot. Only temperature activated switches employed.

The limit switch to the left of fan switch is "Nordyne" part #626259. This switch is rated at140 degrees. When the temperature inside firebox exceeds 140 degrees, switch "opens" removing power from the secondary of 24vac xfmr.

The fan switch to the right of the limit switch is "Nordyne" part #626337. This switch closes when firebox temp reaches 115 degrees. Opens at 70 degrees.

At the top to the left of fan is a smaller limit switch, which is a secondary safety switch. The increased temperature within the heat exchanger box activates this switch. It is wired in series with the thermostat wiring.

Hope this info helps.

Feb 05, 2013 | Intertherm Heating & Cooling

1 Answer

Nordyne Split System Blower Won't Start


It's the fan motor. A relay problem would cause the motor not to run at all.

May 08, 2017 | Heating & Cooling

1 Answer

I have a Intertherm furnace model MMHA with United tech controller 1018 HSI. Flames starts up , fan runs but flame goes out and restarts after a few minutes. Keeps doing this, I don't see a proof of flame...


Maybe. There has to be some sort of flame sensor with this HSI module. Look on the wiring diagram for where it may be. If this model has a pilot that starts before the burners, it may be part of the ignition electrode or glow bar. If the burners just light, look at the far end of the burner box to make sure the flame is traveling down the entire length and hitting the sensor. If you find it, clean it off with a small tooth brush. Blow out the flame rail where the flame travels from burner to burner. Clean off the pilot assembly if it has one.

Oct 17, 2009 | Heating & Cooling

1 Answer

No AC from older Intertherm split system


It sounds like you are low on refridgerant. Double check to make sure both fans and the compressor are running. If so then you have a refridgerant problem.

Aug 29, 2009 | Heating & Cooling

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