for cleaning the refrigerator and melting the ice inside.
Operates independent of line power built-in battery and alarm test uses customer-supplied 9V battery WARNING: Keep ventilation openings, in the appliance enclosure. Includes accurate digital timing circuit adjustable from 0.5, 1, 2, 4, 8, 18 or 32 minutes. Inserts variable time interval between detection of alarm condition and transmission of signal. Signals chronic alarm conditions that may indicate impending component failure allows time for inspection or corrective maintenance. Red alarm light flashes to indicate transient event must be manually reset. Digital timer can be set from 0.5 to 32 minutes. Adjustable delay releases signal to alarm/monitoring system only when alarm condition continues for specified time period. Eliminates nuisance alarms due to intermittent voltage flux from lightning or brief power outages. Perform routine maintenance on the freezer such as cleaning the door or lid seal to keep warm air from entering the freezer and triggering the alarm. Sometimes, lack of maintenance can cause cooling problems and trigger the high-temperature alarm. Replace the condenser fan if it isn't running when the compressor runs because the condenser fan blows air across the condenser to help cool the refrigerant before it enters the evaporator. Red alarm light flashes to indicate transient event must be manually reset. Replace the evaporator fan if it doesn't run when activated.Ĭlean dirty condenser coils because dirty coils won't cool down refrigerant before it enters the evaporator, resulting in poor cooling performance. Thermo Scientific Refrigerator and Freezer Alarms are offered in a variety. A failed defrost timer won't advance into the automatic defrost mode so the defrost heating element would never turn on to melt frost off the evaporator fins.Ī failed evaporator fan can also cause cooling problems because it won't circulate air through the freezer cabinet. A failed defrost bi-metal won't allow current to reach the heater so a failed defrost bi-metal will also inhibit cooling in the freezer. If the defrost heating element that melts frost off the evaporator fins fails, frost will cake up on the evaporator fins and interfere with cooling airflow in the freezer. Problems in the automatic defrost system can also prevent the freezer from cooling and trigger the high-temperature alarm. If the freezer compartment is actually at 0 degrees when the high-temperature alarm sounds, a failed thermistor or bad electronic control board likely caused the alarm by inaccurately detecting freezer temperature. Any temperature faults are indicated on the controls with a red indicator light. If the freezer cools but doesn't cool down to the set temperature, a failed thermistor may be inaccurately detecting freezer temperature or the electronic control board in the freezer may be inaccurately detecting the thermistor signal. Galanz Deep Freezer Alarm Upright Freezer with Automatic Defrost (396). This tactic won't work for all freezer models, but it may work for your freezer if you're desperate to keep food in the freezer from spoiling and can't get a service technician to repair the freezer right away. If it rattles, try replacing the relay to get the compressor started and the freezer cooling again. Unplug the freezer and pull off the start relay and shake it. 
If the evaporator fan inside the freezer runs but the compressor doesn't run, a failed start relay on the compressor could be preventing it from starting. A service technician will need to diagnose and fix a sealed system failure because the repair involves the recovery and recharge of the refrigerant. Have a service technician examine the freezer if you suspect a sealed system failure. If the alarm goes off and you hear the compressor running, a sealed system problem such as a refrigerant leak or a failed compressor pump may be causing the problem. Restore power to the freezer by resetting the house circuit breaker for the electrical outlet and the freezer will resume cooling if a power failure caused the alarm. What number should I put on my freezer Kitchen Fact: Your freezer’s ideal temperature range is 0 degrees Fahrenheit or lower (-18 degrees Celsius or lower).
Wait 24-hours before calling the service center if the red indicator is still turned on. When you hear the alarm, check the freezer electrical outlet for power because the control uses a battery as back-up power to sound the alarm (on most models) when the outlet power fails. The Red Indicator is on to warn you about a high-temperature warning. (The exact temperature rise that triggers the alarm varies by model.) The high-temperature alarm sounds when the temperature inside the freezer rises 15 degrees above the set temperature so that you can fix the cooling problem and prevent food spoilage.
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