LG Refrigerator Fail
This homeowner had trouble with a failed ice maker. After contacting ORMECO, a technician was able to quickly troubleshoot the problem and make repairs. The trouble was a failed circuit board, which was replaced along with the front panel.
Samsung Refrigerator Fail
This refrigerator did not cool properly. The freezer worked fine, but the refrigerator temperature was nearly 60°F; this was caused by no airflow inside refrigerator cabinet. ORMECO traced the problem to a defective computer board. The board controls the refrigerator evaporator fan (controlling the fan operation makes it possible to control the refrigerator temperature). When the board failed, the fan no longer operated. As a result, the evaporator coil, fan, and duct work froze completely (it was -8°F). After contacting ORMECO, a technician was able to quickly troubleshoot and correct the problem. The board was replaced and the refrigerator was dismantled and defrosted.
The temperature controls on this refrigerator failed; as a result, the refrigerator become too cold. ORMECO technicians traced the problem to a broken damper assembly. The damper modulates to allow cold air to pass between the freezer and refrigerator compartments. The damper motor is controlled by the thermostat. When the damper broke, it jammed in the full-open position.
The damper motor and blade are embedded into a Styrofoam block and held in place by a plastic cover. Note the damper blade has come loose from its mounts (picture 3). Without the blade attached, temperature inside the refrigerator compartment could not be regulated.
SAMSUNG ICE MAKER FAIL
The ice maker on this Samsung side-by-side was damaged because the heat trace on the fill tube burned out. Water is fed into the cube mold by means of fill tube. The fill tube on this model is prone to freeze, so the manufacturer wrapped the tube with a heater jacket (called heat tracing). Connected to the end of the fill tube is translucent polyethylene tube. When time to harvest ice, the ice maker motor rotates and twists the flexible cube mold to eject the ice. As the cube mold rotates, it strikes (and bends) the polyethylene tubing. When the heat trace burned out, ice began to form inside the fill tube. Eventually, ice filled the polyethylene tube; when the cube mold rotated, the now-rigid tubing shattered the cube mold.
The failed heat trace allowed the flexible tube-end to freeze. Note the plug of ice (picture one). The heat trace is wrapped around the fill tube (pictures two and three); it is controlled by a computer board. As the cube mold rotates, it strikes the flexible tube end, clearing it of any ice buildup (picture four). Unfortunately, the frozen tube-end was no longer flexible. When it struck the cube mold, the mold was shattered (picture six).
subZero thermostat failure
This customer's refrigerator is equipped with a capillary bulb and tube thermostat. The unit is almost 40 years old, so not surprisingly, it needed replacement. The evaporator fan bearings were also getting noisy, so ORMECO technicians replaced the fan as well.
Here, the evaporator fan is removed and tested. The manufacturer used a shaded-pole type fan motor, which is still available; unfortunately, an exact replacement for capillary thermostat is not. ORMECO sourced a suitable replacement; however, slight modifications to the refrigerator were required.
Here, an ORMECO technician is installing a Danfoss-brand capillary bulb thermostat; something designed for commercial refrigeration equipment. A cardboard insulating pad is placed behind the thermostat, and the capillary tube is routed behind the rear panel of the refrigerator; the bulb was installed at the evaporator coil.