Walk In Cooler Evaporator Coil Frozen

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Walk in cooler evaporator coil frozen. As it turns out you have a frozen evaporator coil. If airflow is blocked you ll end up with a frozen coil. This is comprised of several components including a defrost timer resistive heater s defrost termination switch fan cycling control and drain line heater. Is at 39 degree f.

Worked fine for a couple of weeks found unit frozen solid adjusted defrost time after thawing completely replaced contractor and made sure heaters were working it s a small walk in freezer made by polar king seems to stay in refrigeration and freeze up the coils but every time i get to the job i defrost it and make sure heaters are. Improper air flow check to make sure there is nothing blocking the return air vent this is the opening where the air goes across the evaporator coil and returns to the unit. You walk outside to inspect the outdoor unit and you re greeted by a strange sight. This was a service call on an iced up walk in freezer evaporator coil.

At king heating cooling plumbing we re here for. First it is a walk in chiller using r22 when it ice up it starts from the bottom until it cover the entire coil and the unit is a chiller it does not carry a defrost cycle. One other thing i notice the low side pressure would go down to 25psi at times when the room temp. 5 reasons spot cooler coils freeze up and what to do about it.

A frozen evaporator coil from improper defrosting. One popular method of defrosting walk in freezers is the electric defrost system. Once i got the coil defrosted we found that the cause was the food delivery driver lea. What s definitely not recommended is continuing to operate the system and hoping the malfunction will.

In this article we re going to talk more about what causes this phenomenon and what you should do if this happens to your air conditioning unit.