CREDA Kitchen Range -The cooling fan and oven fan run contiuously when the oven is turned off. The only way at present to stop them is to switch the stove off at the cooker supply box. When you switch it back on at the supply box, both the fans start start running again. How can I fix it ?
Many thanks Stu.
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Download this illustration and then using a good multimeter start basic troubleshooting.
residential window air conditioners have a cooling system made up of
four primary components, a compressor, an evaporator fan, a control or switch, capacitor.When the thermostat is calling for a colder room temperature the compressor is energized. It is
normally very quiet.
evaporator is always located on the front of the air conditioner. It
also has silver fins. Be sure it is clean. Use a foaming type cleaner and rinse with plain water. Because the evaporator is absorbing heat, it is very
cold to the touch. The temperature drop causes any humidity in the air
to collect on the evaporator - sometimes called sweat. There is a fan
inside the air conditioner that circulates the air for the evaporator
and condenser coils.
The circulating fan and compressor are running
simultaneously. The fan motor has two fan blades attached to it on
either end. The fan blade on the inside part of the unit continually
draws room air over the evaporator coils, which are cold. The fan blade
on the outside part of the unit continually draws fresh outside air over
the condenser coils, which are warm. Because the evaporator coils are
cold, they cause moisture in the room to collect on them, much like a
cup of ice water on a warm, humid day. When the amount of moisture
increases, it begins to drip down off of the coils into the bottom pan
of the air conditioner. If the compressor fails to start or the fan you may need to replace the capacitor. You may need a hard start kit.
Thermostat control The
thermostat on a window air conditioner works by sensing the air
temperature entering the air conditioner. As the air entering the unit
reaches the set temperature it will cause the compressor to turn off.
The blower may continue to run depending on the selection chosen on the
control panel. Digital thermostats work on a similar principle but
display a more precise temperature. Test for continuity with the multimeter between the two terminals . Warm you should read continuity (contacts closed). If not change it. Selector switches The
air conditioner selector switches allow the user to choose the fan
speed. The compressor always runs at the same speed regardless of the
settings. If low cool is chosen, for example, the fan runs at a slower
speed but the compressor still offers the same cooling capacity. There
are other switches to control louver operation and other features on
Located behind the left side of the instrument panel.
Cooling Fan Controller Module
Located behind the right side of the instrument panel.
Cooling Fan Relay
Located in the air conditioning cooling fan control module.
Electronic Control Assembly
Located under the left side of the instrument panel.
Electronic Engine Control Power Relay
Located behind the glove box on the right side of the instrument panel.
Fuel Pump Relay
Located behind the glove box.
Located in the fuse block.
Let me know if this helps. If not, let me know.
The fuse panel is located below and to the left of the steering column.
Fuses are a one-time circuit protection. If a circuit is overloaded or shorts, the fuse will blow thus protecting the circuit. A fuse will continue to blow until the circuit is repaired.
Main fuse box located on driver's side to the left of the steering wheel, above the brake pedal.
It sounds like you have a "setback thermostat" A control intended to increase efficiency by allowing the fan to run for an adjustable amount of time after the heater turns off, whether the heater is electric or part of a heat pump. If the "setback" time is too long, the element will cool off and the fan will blow cold air. Try and locate the instructions for the thermostat and see if the "fan run time after heat turn off" is adjustable and reduce it by half. Most emergency heat circuits bypass control circuits (its an emergency, you know), and require manual control.
These unit are set up for continuous fan operation when turned on. It does not have an automatic position on your thermostat such as in your house. Set the fan speed to what you are comfortable with and let the thermostat control the temperature.
The Air conditioner are good only the adjustment of thermostat are the problem, select the thermostat in lower #3 you observe the thermostat will off in such time temperature reach to #3 If you full adjustment the compressor will not off.
In fan selector the compressor will autamatic off because no connection attached fan only .