Help reading simple diagram/ Defrost on Avanti FF8Y
Posted 05 April 2012 - 04:24 PM
Posted 05 April 2012 - 05:21 PM
Posted 05 April 2012 - 06:37 PM
you need to make sure your condenser is clean and the fan is running back there...
Not familiar with this unit ,some have the condenser built into the side walls...mostly freezers though...
- Samurai Appliance Repair Man likes this
Posted 05 April 2012 - 07:27 PM
Posted 05 April 2012 - 09:01 PM
Posted 06 April 2012 - 07:11 AM
This isn't that simple of a diagram and I know you're thinking from reading it that the defrost heater is going to be on at the same time as the compressor but it isn't.
These and the cheap Magic Chef smaller apartment size refrigerators use this same system.
When the system is in normal run mode the power is just being passed thru the heater to power the defrost timer motor, (the heater doesn't actually heat in this mode, just shunts power thru it).
When the timer clicks into the defrost cycle, the defrost timer stops advancing, (the timer only has an 8 minute defrost period but will not run for any of this 8 minutes until the defrost bi-metal opens), once all the ice has melted off the evaporator and the bi-metal opens then the defrost timer runs and counts down its 8 minute defrost cycle then clicks back into run mode.
The condenser coils are built into the walls of the refrigerator so it is normal for the sides to feel warm. If it is never cycling off then the walls may get much hotter then with normal operations. You may have a defrost problem that is causing the evaporator to plug up with ice so the cold air can't circulate over and thru the coils to the refrigerator section were the t-stat is that is measuring the temp that you have it set at.
You need to pull the evaporator cover, (rear freezer panel), and check the frost pattern on the evaporator and get some actual temp readings from the freezer and refrigerator after it has been running and closed for 24 hours.
Seems to be defrost timers that go bad in this style of unit more so than the defrost heater/fuses/bi-metal.
When turning the defrost timer with a screwdriver to try and put it into a defrost cycle you have to turn real slow, just a click at a time, or you can easily click it right past the short 8 minute defrost section and right back into run mode.
Edited by Budget Appliance Repair, 06 April 2012 - 07:22 AM.
Willie's Budget Appliance Repair
Eureka, CA 95501
Posted 08 April 2012 - 09:42 AM
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