Question about Freezers
Freezer has been running constantly, I bought a new defrost timer. It still runs. Everything I have read says to get ice off the coils. How do I get the back off? There are no screws. There is also no water in the pan. So I am assuming that the line might be blocked.
This kind of Food Service Commercial grade freezers have many product
protections against excesive heat from a defrost subsystem failure,
these protections include a defrost precision timer and/or a
digital pcb (control board) composed by many electronic ic's and
A common failure is on the relay contcts that energizes the compressor and in many cases the relay nergizes a contactor to energize the compressor if one or this two (Relay and Contactor fails (keep contacting stacked or not released) the compressor continues running with no cut except when by ovrheated ands the overheat protections disconect the compressor until the temperature lowes to safe working temperature locating the trouble on the relay or contactor. But in some cases the control board fails at circuit level and not cut by temperature or defrost program then the control board could be the responsible.
Narciso González Palomera
Posted on Jan 27, 2009
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