Question about Avanti Refrigerators
Need the above model's defrost timer replaced in a lot of our hotel refrigerators. PLease guide me through where I should go.
Have looked at the schematics for this cabinet and am unsure as to the location of both defrost thermostats as unclear on drawings. The purpose of the defrost thermostat is to overide the heater and end the defrost cycle, once the temperature on the evaporator is high enough (normally around 0'C). If you have two then one will probably control the heaters going off and the other may well control the fan, for coming back on. I.E. once the defrost has ended the second sensor will tell the fan when the coil is cold enough to come on, this prevents heat being pushed into the main area after a defrost cycle. If you feel competent enough then I would bypass the heater thermostat temporarily and see if the heaters kick in. The other thing to check is that you have a resistance across the two ends of the defrost heater. In my experience the heater is the most likely to fail, the sensor sometimes fail and the timers rarely fail. The age of your cabinet would suggest the heaters. Please do not leave the sensor bypassed as it performs an essential role. Hope this helps.
Posted on Sep 05, 2007
SOURCE: Defrost timer
The above URL will take you to an exploded view of the controls. Look at number 23 which will be located behind toe plate below door on the left side. That is the defrost timer. Rotate the clutch head screw Clockwise SLOWLY until you hear a loud click. That is the defrost timer starting the defrost. If the unit restarts after 18-22 minutes and defrost does not take place you problem is most likely the defrost thermostat.
Posted on Jun 20, 2008
SOURCE: Need to Replace Defrost Timer
check bottom back left should be a small hole with a small plastic place to turn with a srew driver some are insidethe fride on the left side arond where the lite is if you see a mall plate with a srew open it it should be there thanks from gilles
Posted on Mar 15, 2009
there are 3 components in the defrost system that can go bad. timer, defrost thermostat, and defrost heater. since youve already replaced timer that means youve eliminated it as a bad component. the most common defrost system failure is actually the defrost thermostat. moisture will infiltrat into the control and ause it to short out. the way to check it is:
Posted on Mar 19, 2009
SOURCE: stoped working
it sound like you have a problem with the evaporator fan. check inside to see if you feel air going though the air vents. You should be able to even hear the fan turning, if not there's your problem.
Posted on Sep 08, 2009
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