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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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