The drive motor start and run windings can be checked with a volt/ohmmeter. Set the volt! ohmmeter on the RX-1 scale and place one probe on the white lead of the drive motor terminal block, the remaining probe is placed on the blue lead of the drive motor terminal block. The volt/ohmmeter should show continuity (or approximately four ohms resistance) if the motor winding is good. No continuity would suggest an open or burned-out winding. If the drive motor has a humming sound when the motor tries to start, the start switch must be checked. Read the rest of this entry »
Specific failure symptoms include: 1) When the washer is turned ON, nothing happens. 2) When the washer is turned ON you hear a faint “buzz.”
To find the cause of this problem, first check to be sure that the washer is plugged in a working power source.
Make a line voltage check at the washer receptacle to determine if the problem is a faulty power receptacle or a problem within the washer. Make a voltage line check by setting the volt/ohmmeter on the 150 A/C scale and placing the probes in the holes of the wall receptacle. The meter should read 110-125 volts. Read the rest of this entry »
If the heating element tests OK, you should next check all the electrical wiring from the dryer timer assembly, thermostats, and drive motor. Electrical wiring in a dryer becomes brittle and burned because of the excessive heat. To locate defects in the wiring, use a volt/ohmmeter to make continuity checks on wires that you suspect are faulty.
The problem of no heat in the gas dryer is much the same as the electric dryer, except that instead of checking for a possible defective heating element, you must check the gas ignition circuit. A sure and simple test is check voltage to the gas burner wiring harness. Read the rest of this entry »
Specific failure symptoms include: 1) Frost build-up on back wall in freezer section of Fridge. 2) Fridge ice maker not making ice. 3) Food not remaining at the desired temperature in both the Fridge and freezer sections.
When the Fridge starts to build up frost in the freezer section, you can assume that something is preventing the Fridge from going into the defrost cycle. You will have to check the components of the defrost circuit. Move the Fridge out from the wall and unplug the Fridge power cord. Check the components in the order listed below. Read the rest of this entry »
There are two principal methods of wiring a lighting circuit, the loop-in system and the joint box system. In practice a circuit is often a mixture of both methods, the principal sections being loop-in with some lighting points being wired in conjunction with joint boxes to save cable and to facilitate the wiring. For both methods twin-core and earth PVC sheathed cable is used.
In the loop-in system, ceiling roses combine the functions of ceiling rose and joint box as the circuit wires are jointed at the ceiling rose terminals. The flexible cord of the pendant is connected to the rose terminals. Read the rest of this entry »
Move the refrigerator out from the wall. Unplug the refrigerator power cord, and turn OFF the water supply to the icemaker.
Using hand tools, remove screws and discard the defective water supply valve. When installing a water supply valve on the water heater, install only on the cold-water side of the water heater. Read the rest of this entry »
If only one appliance suddenly stops working and there were no flames, sparks or big bangs to indicate that it was a malfunction in the appliance itself, unplug it and try it in a different socket. If it is still not working, check the cord’s connection with the plug, as well as the appliance, If one of the connections seems loose or frail, unplug the appliance and try to repair the connection. You will either have to unscrew the plug, or dissemble the appliance to get to the cord connection. Read the rest of this entry »
Joint boxes are usually circular and for part of the circuit wiring. They are fix permanently to the house structure are used principally in lighting circuits. Join boxes are available in 4- 5- and 6-terminal versions.
A 3-terminal joint box of 30 A current rating is used for ring circuits to connect spur cables to the ring cable, as shown the illustration. Read the rest of this entry »
A fused clock connector is a small non- switched fused outlet designed expressly for supplying a mains electric clock.
The unit is in two sections: a fixed base which is connected to the fixed circuit wiring, and another section in.the form of a flat pin plug which plugs into sockets in the base. The plug section carries the flex of the clock and contains the fuse. The plug is secured in the base by a retaining screw. This prevents the plug being pulled out accidentally and stopping the clock. Read the rest of this entry »
Specific failure symptoms include: 1) When the dishwasher is turned ON, nothing happens. 2) When the dishwasher is turned ON a “buzzing” sound is heard.
To find the cause of this problem, first check to be sure the electricity is turned ON at the circuit breaker panel. Next, check to see that the dishwasher timer knob is pushed in or pulled out to the ON position when selecting a cycle. Read the rest of this entry »
