High voltage can kill.
1. Disconnect power supply.
2. Remove 16 screws and rain seal washers and canvas cover.
3. Remove 11 screws and rain seal washers and top cover.
4. Inspect for loose electrical and refirgeration connections, damage to sensing lines,
Use great care to avoid contact with liquid refrigerant or refrigerant
gas being discharged from any container under pressure. Sudden
and irreversible tissue damage can result from freezing. Wear
thermal protective gloves and a face protector or safety glasses in
any situation where skin or eye contact is possible.
Prevent contact of refrigerant gas with flame or hot metal surfaces.
Heat causes the refrigerant to break down and form carbonyl
chloride (phosgene), a highly toxic and corrosive gas. In case of
refrigerant leaks, ventilate area immediately.
Remove four screws (1) and switch enclosure (2).
High Pressure Switch Testing.
(a) Tag and disconnect electrical leads and connect a multimeter across the
electrical contacts of the high pressure switch (6).
(b) Loosen the flare nut and disconnect the high pressure sensing line.
(c) Connect a nitrogen cylinder to the high pressure switch sensing line.