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Williamson temp-o-matic central heating system

The blower turns on but very little heat comes out

Posted by Anonymous on

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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

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Therinnaiguy
  • 1420 Answers

SOURCE: weathermaker 8000 58zav115

The technician sould have replaced the circuit board with part number CESO11057-02 which contains a diagnostic LED that will blink out a code when a fault is senced. If not we have to diagnose the hard and costly way, test each circuit.

There are only a limited number of reasons why the blower would stop running, one being a bad blower relay and another being a overheating of the motor inself causing it to shut off on internal overheat. The relay is part of your circuit board and the overheat is inside the motor, both of which you had replaced. Has anyone checked for a restricted air filter or supply/return restriction? Loose wire?

I'm guessing now. Good Luck and let us know what you find.

Posted on Jan 23, 2008

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22yooper
  • 828 Answers

SOURCE: My central heating system comprises

You could possibly have an ignition problem. The controller will go into a lock-out condition if flame is not established. Turning the temperature control down and then back up may be serving to reset the control system so it tries again.

Posted on May 22, 2008

  • 1 Answer

SOURCE: 10yr Vulcan Central Heating unit.

I have the same problem, heating unit will not ignite, it trips out, i go into the roof cavity and remove the top of the unit (4 screws) and there is a motherboard, it has a Green light flashing what tells you the type of fault it has, mine has 3 Flashes telling me it a combustion air pressure system failure, ithen push the reset switch and it starts to initiate, a red light comes on and then it ignites and it will work for about 30 minutes to an hour and a half.

Hope this helps
Shane

Posted on Sep 20, 2008

Therinnaiguy
  • 1420 Answers

SOURCE: Carrier 58MVP; Blower on, no

A code 12 is "Blower on after power-up" Try resetting the furnace with either the Emergency switch or circuit breaker. If it continues, you may need a new control board.

Posted on Nov 28, 2008

diths_kri
  • 67 Answers

SOURCE: central heating HVAC blows cold air -

stat or low battery in tstat

Posted on Jan 07, 2009

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20+ year-old Williamson Temp-O-Matic furnace makes sound like a overly-full tumbling clothes dryer lately. Is something wrong? What might it be? Thanks!


Dear Anonymous,
Is there a possibility you have a furnace, not a clothes dryer?
If so, it sounds like you have something ( dirt? lint? expired varmit?) in or on your squirrel cage blower fan.
Someone will need to that the furnace apart and see what is going on inside.
Summertime is a good time to do furnace "maintenance service".
God bless your efforts.

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My heater worked a little bit today when I had the thermostat changed but notice the fan wasn't working and that's why it did not heat the cabin. Now I notice the air compressor is coming on while the


well the ac compressor will come on if you have it in defrost mode,if heater is blowing cold ,after you just had thermostat replace ,you could possibly have air in system.now if your heater motor is not working which is called the blower motor under dash it could be the resistor that controls it also these rigs have been known for wire harness problems at heater control unit and the blower motor connector.good luck,mike

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Goodman gph1348m41ac unit is blowing cool air in heat mode with mid 30s ambient outdoor temp. I turn it off then on and will usually blow warm air but this cycle is becoming more repetitive. any expert...


A heat pump on the optimal heating day (about 50 degrees ambient) will only deliver approximately 85 degree air as compared to 125 degree air from a fossil fueled furnace. The colder the outdoor air is the less heat there is available to be transferred to the living space. At 30 degrees, the heat transfer capability is getting close to negligible meaning the run cycles will be approaching continuous and eventually as the heat pump along cannot maintain setpoint, the outdoor stat or stats will bring on auxilliary heat in the air handler.

If your ambient temp is below the 'balance point' of the heat pump, the house temp will drop a little lower and most times energize the heat strips through the outdoor t-stat. Your outdoor stat could be set too low for the heat pump to carry the structure all the way down to the balance point so when you turn it off and back on, the lower indoor temp automatically brings on the heat pump plus a heat strip or two, thus the warmer air. Second stage on the stat satisfies due to the heat strip, drops them out of the circuit and the heat pump is left running on first stage heat delivering the perceived cold air.

Your outdoor stat could also be not functioning correctly and not allowing the heaters to come on until the system is turned back on reestablishing the two stage call for heat.

Tons of possibilities and not enough room to list....

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1 Answer

2008 jeep liberty no heat or little heat.


I would test your blend door actuator and your blower motor, put a voltometer on them both and see what kind of voltage you get, with the heat on, next pull out the HVAC control in your dash and find out what the voltage is going to the control it you have voltage going to th control and not to the actuator or the blower motor the you know your control is bad. if you have voltage going to both then pull them and visually check to make sure they are turning properly. The blower motor will spin very fast and the actuator will be ver slow. I hope this helps you

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1 Answer

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  1. check to see if you have voltage to your blower motor with key on and blower motor switch selected to a speed setting
  2. if you have voltage, then your blower motor is faulty
  3. no voltage means that you have a blown fuse, bad relay, bad fan switch, or bad blower motor resistor.

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I have central heat and air system, my problem is when in heat it runs for 10-15 min. turns off and about 20 seconds later starts back up. It shts off before hiting its tstat. temp.


If this is a gas furnace and you have a cooling coil on top then you could have a dirty coil. Also a dirty air filter can do this. I have also found dirty blower wheels. The gas furnaces have a high limit to prevent the heat exchanger from over heating. Another possibility is always a possibillity; however, 99% of the time I find an air flow issue.

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