Maytag wide by side MZD2667HEW freezer works fridge does'nt

thermostat send the signal to the circuit board control the dampner. but u need to check the dampner switch n-open

Need to see if the damper is open inside the fridge.  This the vent in to top left hand corner.  If it is not open then the damper needs to be replaced.  If it is open then one of the return vents (lower part of fridge) is blocked/plugged.  Let me know what you find.

ck the dampner control as it controls the air flow to the fresh food side. also see if the evap fan is working .. inside the freezer side . this blows the cold air to the fresh food side. mm

freezer side check fan working check damper to ref. side.

Difficult to properly diagnois with such a brief description, but try the following as a good first step at correcting the problem. Reset the freezer and fridge thermostat settings at the factory default. Also, check the freezer section to make sure nothing is blocking the cold air supply vent into the fridge, do the same on the fridge side too.

Normally is the freezer is working fine, and the fridge is warm, it can be due to either a blockage of the cold air cross vent by items in either the freezer, fridge, or both, preventing proper cold air flow from the freezer into the fridge. Also, check to see if the cold air vent is not frozen or obstructed, with a fashlight (you;ll need to remove stuff from fridge and freezer to make this possible to check.

If the vent is not obstructed and you can clearly feel cold air passing from the freezer into the fridge, it is possible that the cold air vent control has ceased operating properly and needs to be replaced. Usually though this type of problem is caused by people over stuffing things into the freezer section and blocking the cold air cross over vent. Hope this helps.

clean the condenser coil in the back of the unit

Is there ice build up in the freezer? Ours does this we have to remove the bottom & above draw & bang the back plate until the ice built up behind it breaks off & falls down onto a tea towel & then you hear the fan start whirring again, it sounds brutal so wrap your hand in a spare tea towel, but bash away till the ice comes out & fan whir's again, as this fan circulates the cold air into maintaining fridge temperature ?? That's the only way ours then chills fridge again, so much for frost free fridge freezers eh! ??

if you get frozen fresh food the air damper is not closing allowing too much freezer air to enter ff section, looks like an electronic controlled wide by side you have, ther should be a tch sheet with a troubleshooting guide behind the kickplate or pasted in an envelope under the front of refrig behind kickplate.

mar...you're box is set too cold. Use -17 C/38 F on the freezer side which is about 38F/4C on the fridge side. Use an outdoor thermometer and let it sit closed for at least a few hours. Adjust accordingly and this will work out. One adjustment is often the cold vents from the freezer into the fridge. If set too wide, too much cold air gets into the crisper and water lines.

Without knowing the type of fridge(side by side, freezer on top etc.) all I can offer is this: Somewhere between the freezer and the fridge there's an opening thermostatically controlled to transfer cold air from freezer to the fridge. Most have a fan to move the air. So either the fan (if so equipped) stopped, and need to replace, or opening is stuck closed, or plugged.
If freezer is working fine, this is the only problem I can think of.
Hope this helps