We have a bosch air flow fridge freezer

See or hear if the fan inside is working. Im not conversant with your model. Some units have 2 fans , 1 in the freezer and 1 in the fridge. Some only have1 , which will be in the freezer only. If the fan fails, the fridge cannot blow cold air into the food compartment. Generally, when an evaporator fan fails, the fridge doesn't get cold and the freezer overfreezes causing an excess ice buildup in the freezer.

Hi Kloynes,
It could be a problem of LEAKAGE.....Followings steps may help you tackle the problem:
Steps

1. Check the hose under your fridge that drains condensation and such into a catch tray. Make sure the hose is draining properly.
2. Blow air through the tube to make sure it is not clogged. A coat hanger wire can be inserted to break up clogs. An alternative method is to use a bicycle pump to force air through the drain hole to remove any obstruction. Vacuum dust bunnies from under the fridge to allow free flow of the air. Most refrigerators periodically blow warm air across the condensation tray. The warm air dries the condensation in the tray.

Tips

• Clogs are usually caused when dust, moisture and micro-organisms get together in the drain tube. Keep the dust vacuumed from the back and bottom of the fridge. Make sure the drain tube is firmly connected at all points. The drain tube can be flushed with chlorine bleach, rubbing alcohol or other anti-bacterial product. Product selection should be consistent with the tubing material.

Warnings

• Use caution with anti-bacterial products. Make sure that any such products cannot flow back into the food compartment.

Things You'll Need

• Wire hanger
• Anti-microbial agent such as chlorine bleach, rubbing alcohol or anti-bacterial soap.

Thanks

From your description, it sounds like your condensing coil is dirty and needs cleaning. You will probably find the coil and fan inside the back cardboard cover area. Once a condensing coil gets so dirty, the refrigerant condensed in the condenser is so hot that it does little cooling effect because of the internal heat consumes any refrigeration effect left in the refrigerant. This is vary common problem and especially for pet owner. The pet fur and hair get caught in condensing coil and block air flow.
Hope this helps

the frig part not cooling though the freezer works is usually caused by bad air flow due to restriction somewhere. check ur vent settings and make sure not defective, the door rubber insulation may also be defective and not sealing properly after closing? and thus cool air escapes? but if ur feeling noticing air flow from the freezer but not in the fridge, the flow is obstructed, if the flow is off and on, do u notice the sound of the fan always running or does it go off and then on, it may be defective, the only time fan should go off is when in defrost mode?

Once the fridge is shut OFF for few hours to defrost and then switched ON , if the fridge works with cooling , then the fault is with the AUTO DEFROST TIMER or the circuit -maybe the heater, break in the lines to the timer, heater, the fan.
The build up frost will block the flow of cool air to the fridge from the freezer evaporator.
So remove and check.

Air from freezer could also be restricted. Need you to find me the correct model number.
Look at following areas for the model number

• Beneath Or Inside Food Compartment On Cabinet Frame
• On Plate Lower Front Or Rear Of Cabinet
• Beside Compressor Door On Right End
• Near Rear Of Cabinet
• Inside Liner At Top
• Thanks, Sea Breeze

if back wall of freezer has ice or thick build up you may have a defrost problem or if not the evaporator fan motor could be bad, not moving cold air from freezer to refrigerator.

Has the defrost timer been checked, that can cause this. Also clean the dust out of the condenser core.

relies on air flow between fridge and freezer but is regulated.
fault is probably ice build up on top of evaporator in freezer. remove back panel inside freezer and check. also check the air ducts are not iced up

Hi - experienced this myself and spent ages trying to get to the bottom of it - only found one post but it worked and was absolutely clear on the cause nb: i'm not an "expert" !

My understanding of how the Bosch f/f works is that the freezer compartment generates the cold air for the fridge which is regulared at the fridge end . At the back of my fridge there are two "vents" which feed up this cold air up from the freezer into the fridge.

Problem happened to me because I left the freezer door slightly ajar which generated a massive amount of frost (sucking in the moist air from the house I guess then freezing it) and subsequent ice froze up the cooling ducts between the freezer and the fridge. Therefore, no matter how much I turned up the fridge thermo it never got cool. Only solution was to dump my frozen at a mates house and defrost the the FREEZER for a good 24 hrs +.

Worked tho' - fridge was completely back to normal.

PS: I understand this issue may also happen if you put too much unfrozen food into the freezer at one go and in working overtime to get it frozen causing a massive frost up again.