Whirlpool Ice Maker 470 User Manual

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4.   
   If ICE isn't made fast enough                         Heavy ice usage 
 
                                                                          Very cold room temperature 
5.   
   If both sections are too warm                          Door opened often 
 
Large amount of food added 
 
Very warm or very cold room temperature 
R134a SERVICE CONSIDERATIONS 
 
R134a systems cannot tolerate (compared to other refrigerants) even trace amounts of 
foreign substances, chemical contamination or moisture. 
 
Examples of detrimental substances are wax or paraffin, silicon, greases, oils, rust 
preventatives, lubricants, leak detection dye or any other additives. 
 
Do not use R12 or R22 servicing equipment to repair an R134a system. 
 
Use new servicing equipment. Old equipment (hoses, coupler/valve seals and 0-rings) are 
not compatible with R134a. 
 
Oil in R134a compressors is very sensitive and capable of absorbing large quantities of 
moisture. Moisture cannot be removed from the compressor oil in a service workshop. 
 
Service replacement compressor should be checked to make sure the studs seals are in 
place and not tampered with. 
 
Compressor studs should not remain open for more than ten minutes. 
 
In any repair of R134a sealed system failure the filter-drier should always be replaced. And 
in any compressor failure in R134 a system always replace with a new compressor. 
 
 
 
 
 
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