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Temperzone unit does not start when switched on

A/C is a ducted system, unit is external and controls internal with a thermostat

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5 Suggested Answers

  • 86 Answers

SOURCE: Ducted aircon error code

1. check cirkit board.

Posted on Mar 17, 2008


jumptrout51
  • 3361 Answers

SOURCE: Converting a ceiling control unit to a thermostat on the wall.

Unless the new unit is 24 volt thermostat convertible inside the unit, you will have to use a line voltage(120v) wall thermostat.

Posted on Mar 25, 2009

  • 127 Answers

SOURCE: Compressor starts, but airhandling motor does not

Sounds like you may have a bad fan capacitor or a bad fan motor. Remove the inside cover from the air conditioner and access the squirrel cage fan or, remove the shroud from the top to access the fan that way. Have someone turn the thermostat on as you spin the fan motor by hand. If the motor starts and runs, then you have a bad capacitor. If the fan motor still does not come on, then there are a couple of possible problems.

When you turn the thermostat to fan, do you hear an audible click in the control unit of the ac? If so, then you know that the thermostat is sending 12V to the fan relay on the board.

I think the motor just may be frozen up. Try spinning the motor by hand and see what happens. Again, if it starts, then just lube the shaft points on the motor with some WD-40 and all should be fine. If the fan motor starts and then after the cycle, does not restart, then you definitely have a bad capacitor.

Hope this helps,

Jeff

Posted on Jul 03, 2009

  • 127 Answers

SOURCE: I have a penguin rooftop ducted system with analog

If you have no leds, then you have a power supply problem. I am assuming that you have the Dometic Electronic Control Thermostat with the ribbon cable connection. Check for 12V power at the control board in the air conditioner, Red 12V+ and Black 12V-. Make sure polarity is correct. If you have power there then check the number 1 and number 10 pins on the ribbon. The voltage should be the same. If they are not, then you have a bad control board, not thermostat.

Hope this helps,

Jeff

Posted on Jul 03, 2009

  • 55 Answers

SOURCE: I want to bypass the

I know this is going to sound rude but you I promise I mean it with only your best interest at heart. You should probably buy the proper piece of equipment to do the job, not a window air conditioner for a wine cellar. For one you may burn your house down by bypassing things in an electrical system that were not designed to be bypassed. Second you are going to over tax that little unit and it will not dehumidify properly. Again I am sorry if that sounded rude just be careful and dont bypass stuff because if something were gonna happen mr. murphy will happen at the most inopportune of times.

Posted on Sep 21, 2009

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1 Answer

Furnace start stop cycle


On properly sized furnaces there are a few controls to look at. Check the settings of the fan switch. If these are unchanged then there may be a reason the furnace is shutting off due to poor air flow and resulting high temperature. Check filter and verify air flow is good. It may be possible that a safety switch is failing and intermittently on and off. Are all the covers securely in place and hitting any safety switches? If not seated properly the cover may loosen when the fan runs and the switch shut off the unit. There is often a flame roll out switch that could have been strained. Lastly, has the thermostat been working long? Thermostats have internal heaters to stop the furnace which is called a heating anticipator. If the thermostat is near a heat source (heat duct, refrigerator, oven, person, hot water pipe), worn out, anticipator is set wrong (older electric thermostats have adjustable settings) or covered (yes, I have seen some covered) then the free room air cannot measure correctly and the thermostat cannot control what it cannot accurately measure. Of all these possibilities I would start with the thermostat and proper furnace air flow, second check the fan/high limit switch and third go component by component through the wiring diagram looking for defects in each component. If available follow the manufacturer's troubleshooting guide.

Jan 11, 2014 | Rheem Heating & Cooling

2 Answers

Heating Element Won't Shut Off


Usually when an electric dryer overheats it's because of a defective cycling thermostat or a clogged vent system. Clean any lint from the internal and external ductwork, and/or replace the cycling thermostat


It normally takes about 45 minutes for a dryer to dry a full load. If your dryer is taking more than an hour, check these.

Vent
Heating element
Internal ductwork
Cycling thermostat
Vent Frequently there's an obstruction in the vent duct from the dryer to the outside of the house. For the dryer to heat properly, the duct must be clean and clear of lint or any other substance.

Heating element Your dryer's heating element may be partially burned out. If it is, your dryer still heats, but at such a low temperature that it takes three or four times as long to dry the clothes. If the element is partially burned out, replace it.

Internal ductwork Your dryer has some internal ductwork. If it gets clogged, your dryer can't dry properly. In most dryers, to get to the internal ductwork to clear the clog, you have to substantially disassemble the dryer. A quick way to check for internal clogs is to remove the lint filter and use a flashlight to inspect the inside of the duct. If it looks clogged and you can't clear it using your vacuum, contact a qualified appliance repair technician.

Cycling thermostat Although this isn't a common problem, one of the thermostats that controls the temperature in your dryer may break and cause the dryer to heat poorly. If so, you need to replace it. The thermostat is usually a small, round, black device mounted to an oblong steel plate. The plate is mounted to the internal ductwork with two screws.

May 26, 2008 | Maytag 24 in. MDBH955AW Built-in...

1 Answer

Condensor dryer smells like burning


make this test and fix it. God bless you
Usually when an electric dryer overheats it's because of a defective cycling thermostat or a clogged vent system. Clean any lint from the internal and external ducts and/or replace the cycling thermostat.

Cycling thermostat

Although this isn't a common problem, one of the thermostats that controls the temperature in your dryer may break and cause the dryer to heat poorly. If so, you need to replace it. The thermostat is usually a small, round, black device mounted to an oblong steel plate. The plate is mounted to the internal ductwork . It will have 4 wires connected to it. 2 wires opposite each other will be closer than the other 2. The ones that are closer together should have continuity if it doesn't replace thermostat

Jul 30, 2013 | Miele Dryers

1 Answer

The gas ducted heater wont turn off and is pushing cold air through the ducts. What should I do?


If you have checked the thermostat or control to make sure the fan setting is on "auto" and not on "On" or "Continuous" or something similar, then either the thermostat/control is bad and sending the wrong signal to the heater or the heater is not accepting the control because the relay/switch in the heater is stuck in the "on" position.

If you have the schematic for the thermostat/control then you can figure out how to simulate the control signal that would go to the heater and switch between "on" and "off" to see if that affects the operation of the fan. If you can simulate the switching and the fan turns off then the problem is in the thermostat/control. If the fan continues running then to problem is in the heater.

If you have determined the problem is in the heater and you have a schematic for that unit, then you can check the opening and closing of the switch that controls power to the fan to determine which component is not functioning.

Once you have found the malfunctioning unit, replace it or the assembly.

Aug 11, 2011 | Heating & Cooling

1 Answer

Fan does not turn off even after disconnecting


Are you referring to the fan on the external mechanism, or the internal air handling fan?
The external fan is not controlled by the internal thermostat. it is controlled by the thermos-witch of the compressor. The external fan may or may not run when the motor is operating. it depend totally on the temperature of teh compressor, and not the internal thermostat.
It the internal air handling fan is running continuously,it may be a a problem with the fan setting. check if the fan is set to 'ON' instead of 'AUTO', and correct it.
Incidentally the fan operation I described, is for modern, energy efficient heat systems. This is a energy saving design incorporated in all heating systems including automobile radiator fans.

Jan 31, 2010 | Goodman Heating & Cooling

1 Answer

Our dryer takes multiple cycles to get clothes dry. Eventually the clothes dry, but it takes forever.


If your dryer is taking more than an hour, check these. Vent Frequently there's an obstruction in the vent duct from the dryer to the outside of the house. For the dryer to heat properly, the duct must be clean and clear of lint or any other substance. Heating element Your dryer's heating element may be partially burned out. If it is, your dryer still heats, but at such a low temperature that it takes three or four times as long to dry the clothes. If the element is partially burned out, replace it. Internal ductwork Your dryer has some internal ductwork. If it gets clogged, your dryer can't dry properly. In most dryers, to get to the internal ductwork to clear the clog, you have to substantially disassemble the dryer. A quick way to check for internal clogs is to remove the lint filter and use a flashlight to inspect the inside of the duct. If it looks clogged and you can't clear it using your vacuum, contact a qualified appliance repair technician. Cycling thermostat Although this isn't a common problem, one of the thermostats that controls the temperature in your dryer may break and cause the dryer to heat poorly. If so, you need to replace it. The thermostat is usually a small, round, black device mounted to an oblong steel plate. The plate is mounted to the internal ductwork with two screws. It overheats Usually when an electric dryer overheats it's because of a defective cycling thermostat or a clogged vent system. Clean any lint from the internal and external ductwork, and/or replace the cycling thermostat (read about cycling thermostats in "Drying is too slow," above). It seems to run forever If your dryer seems to run forever, it could be because of a clogged vent or internal ductwork. Your dryer may have an automatic cycle that turns off the dryer when the clothes are dry. It does this with a special thermostat or moisture-sensing system. Normally, this is what happens during an automatic cycle: The thermostat tells the dryer to heat until the interior of the dryer reaches a pre-set temperature--say 135 degrees. When the dryer reaches the pre-set temperature, the thermostat tells the timer to begin advancing. (If there's a moisture sensor, the timer advances only if the moisture content of the clothing is low enough.) The timer advances until the interior cools, then the thermostat tells the timer to stop advancing, and tells the dryer to start heating again. This cycle continues until the clothes are dry. But?if the vent is clogged, the dryer may never reach the proper operating temperature, so it doesn't send the signal to the timer and the dryer continues to run indefinitely, even if the clothes are completely dry. To fix the problem, clean the vent and/or internal ductwork

Jun 12, 2009 | Whirlpool Dryers

1 Answer

Hotpoint FFA80 Freezer Fan stopped working


This information may help you - it could be the fan motor itself by the way.

Servicing the Thermostat Control
how-to-repair-a-refrigerator-2.jpg
©2006 Publications International, Ltd.
Thermostat controls regulate the temperature of the refrigerator
and freezer. Remove the control panel to reach the controls.


The thermostat control is usually mounted inside the refrigerator. Its visible control knob is turned to regulate the refrigerator/freezer temperature. The workability of this control can be tested in various ways, depending on the problem. To test the thermostat control:

Step 1:
If the compressor runs all the time, turn the control knob to the OFF position. If the compressor still runs, unplug the unit, then pull off the control knob and remove the screws holding the thermostat in place. Pull out the thermostat and remove either the red or the blue wire from its terminal. Plug in the unit. If the compressor doesn't run, the thermostat is faulty. Replace it with a new thermostat.

Step 2:
If the compressor runs after the wire is removed from its terminal, there is probably a short circuit somewhere in the unit's wiring. In this case, don't try to fix the problem yourself; call a professional service person.

Step 3:
If the refrigerator or freezer runs but the box doesn't cool, unplug the unit and remove the thermostat with a screwdriver. Disconnect both wires from the thermostat. Tape the ends of the wires together with electrical tape, and plug in the appliance. If the refrigerator starts and runs normally, the thermostat is faulty. Replace it with a new one of the same type. Connect the new thermostat the same way the old one was connected.

Step 4:
If the freezer compartment is normal but the refrigerator box doesn't cool, set the dials that control both compartments to mid-range. Remove these knobs (they're usually friction-fit). Then unscrew the temperature control housing; you'll see an air duct near the control. Replace the knob on the freezer thermostat and turn the control to the OFF position. Open the refrigerator door and look closely at the air duct. If this duct doesn't open wider in about ten minutes, the control is faulty. Replace the control with a new one of the same type. Connect the new control the same way the old one was connected.

Servicing the Evaporator Fan

In some cases, a faulty thermostat may not be the cause of a warm refrigerator or freezer. A warm box may also be caused by a defective fan, a blocked fan, or broken or bent fan blades. If the blades are jammed, try to free them. If they're bent, straighten them with pliers. If this doesn't solve the problem, call a professional service person.

On some refrigerators, the door switch operates the evaporator fan. If the fan seems to be malfunctioning, the door switch could be faulty. Test the switch as detailed in the last page, and replace it if necessary

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1 Answer

Changed motor now dryer works until its too hot


Usually when an electric dryer overheats it's because of a defective cycling thermostat or a clogged vent system. Clean any lint from the internal and external ductwork, and/or replace the cycling thermostat (read about cycling thermostats in "Drying is too slow," above).
Drying is too slow It normally takes about 45 minutes for a dryer to dry a full load. If your dryer is taking more than an hour, check these.

Vent
Heating element
Internal ductwork
Cycling thermostat
Vent Frequently there's an obstruction in the vent duct from the dryer to the outside of the house. For the dryer to heat properly, the duct must be clean and clear of lint or any other substance. 

Heating element Your dryer's heating element may be partially burned out. If it is, your dryer still heats, but at such a low temperature that it takes three or four times as long to dry the clothes. If the element is partially burned out, replace it. 

Internal ductwork Your dryer has some internal ductwork. If it gets clogged, your dryer can't dry properly. In most dryers, to get to the internal ductwork to clear the clog, you have to substantially disassemble the dryer. A quick way to check for internal clogs is to remove the lint filter and use a flashlight to inspect the inside of the duct. If it looks clogged and you can't clear it using your vacuum, contact a qualified appliance repair technician.

Cycling thermostat Although this isn't a common problem, one of the thermostats that controls the temperature in your dryer may break and cause the dryer to heat poorly. If so, you need to replace it. The thermostat is usually a small, round, black device mounted to an oblong steel plate. The plate is mounted to the internal ductwork with two screws.

Mar 11, 2009 | Whirlpool GEW9250 Electric Dryer

1 Answer

Heating element stays on


stat or a clogged vent system. Clean any lint from the internal and external ductwork, and/or replace the cycling thermostat (read about cycling thermostats in "Drying is too slow," above).
Drying is too slow It normally takes about 45 minutes for a dryer to dry a full load. If your dryer is taking more than an hour, check these.

Vent
Heating element
Internal ductwork
Cycling thermostat
Vent Frequently there's an obstruction in the vent duct from the dryer to the outside of the house. For the dryer to heat properly, the duct must be clean and clear of lint or any other substance. 

Heating element Your dryer's heating element may be partially burned out. If it is, your dryer still heats, but at such a low temperature that it takes three or four times as long to dry the clothes. If the element is partially burned out, replace it. 

Internal ductwork Your dryer has some internal ductwork. If it gets clogged, your dryer can't dry properly. In most dryers, to get to the internal ductwork to clear the clog, you have to substantially disassemble the dryer. A quick way to check for internal clogs is to remove the lint filter and use a flashlight to inspect the inside of the duct. If it looks clogged and you can't clear it using your vacuum, contact a qualified appliance repair technician.

Cycling thermostat Although this isn't a common problem, one of the thermostats that controls the temperature in your dryer may break and cause the dryer to heat poorly. If so, you need to replace it. The thermostat is usually a small, round, black device mounted to an oblong steel plate. The plate is mounted to the internal ductwork with two screws.

Mar 07, 2009 | Whirlpool LER7646J Dryer

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