I have a summit freezer SCFF235 the evaporator fans do not come on

The drain is blocked. The evaporator is defrosted every 24 hours. The water should go to a pan where is then evaporates. Look at the rear for a pipe.

Check if fan is working by pressin the door switch, or if you have exceptional high load recently. Remove everything off the unit overnight before you turn it back on again..

You might have ice building up on your evaporator coil. That ice serves as an insulator and prevents the internal freezer temps from going down to design parameters. The ice buildup is caused by the defrost mechanism not working - check the timer or the defrost heating element.

The evaporator is the part of the fridge that gets cold, more correctly it removes heat. It is usually located in the freezer and a fan motor, evaporator fan, move air thru the evaporator to cool both the fridge and the freezer. Some units have two evaporators, one for the fridge and one for the freezer.

The evaporator fan should be pulling air from the freezer over the evaporator and directing the air down into the frig and circulating through out the freezer.
Hope this helps.

ok well... those pipes coming from your compressor one of them should be hot. if not your compressor is not running.

This sounds like the fan is hitting the ice. If it's iced up, remove the food from the freezer and place in refrigerator.

Take the bottom panel out of the inside of the freezer section and then remove the back panel from inside the freezer section. You will then be able to see the evaporator fan. You will need to check to see if the evaporator fan will turn with the power of the refrigerator turned on.

You also want to look to see if the evaporator fan is turning and hitting ice which means the evaporator is froze up. You will need to check and see if the evaporator fan is bad or the defrost timer is bad.

There is one compressor that serves both the freezer and refridgerator compartments. You need to confirm if the evaporator fan in the freezer compartment is working. When you open the door to the freezer, you should see and hear the evaporator fan in the freezer compartment running. Particularly if there is a demand on the unit through the thermostat setting. If the evaporator fan is not operating, you can check the evaporator fan motor with a volt meter to see if it's getting power. If its getting voltage, but not operating, you need to replace the evaporator fan motor in the freezer compartment. There are 3 wires that attach to the evaporator fan motor. One hot wire, one neutral wire and one ground wire. The ground wire is usually marked green, the voltage wire is usually marked black and the common wire is usually marked white. You should get a reading on your volt meter of a voltage from the hot post to the neutral or from the hot to the ground. If it is getting power but will not operate, then it is definitely a bad fan motor that would need to be replaced.

There is one compressor that serves both the freezer and refridgerator compartments. You need to confirm if the evaporator fan in the freezer compartment is working. When you open the door to the freezer, you should see and hear the evaporator fan in the freezer compartment running. Particularly if there is a demand on the unit through the thermostat setting. If the evaporator fan is not operating, you can check the evaporator fan motor with a volt meter to see if it's getting power. If its getting voltage, but not operating, you need to replace the evaporator fan motor in the freezer compartment. There are 3 wires that attach to the evaporator fan motor. One hot wire, one neutral wire and one ground wire. The ground wire is usually marked green, the voltage wire is usually marked black and the common wire is usually marked white. You should get a reading on your volt meter of a voltage from the hot post to the neutral or from the hot to the ground. If it is getting power but will not operate, then it is definitely a bad fan motor that would need to be replaced.

Below the evaporator fan is the evaporator coils. Remove the back cover in the freezer to observe the frost pattern. Light frost everywhere(NORMAL) or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR PROBLEM).

The fridge gets its cold air from the freezer through a vent(damper) between the freezer and fridge.The fan in the freezer blows air through it. Make sure this fan is running. You may have to hold the door switch in for it to run. There is a flap you adjust with the fridge temp. control. Make sure it's opening and closing when you adjust the fridge temp.
The problem could be the electronic control if you have one or the mechanical linkages.

If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.