DENSO CORPORATION CLASSIC PLUS 26 - Manual (Page 28)

TROUBLESHOOTING AND REPAIR
20
In case of trouble, perform the following inspection
before disassembly.
5. Inspection of Spine Fins
To inspect the spine fins of either the evaporator
or condenser you must remove the air filters.
After removal of the air filters, inspect the spine
fins for any dirt, dust, lint, or debris that may have
caused poor cooling performance of the unit. If
cleaning of the spine fins is necessary, it is
recommended that this service be performed by
a qualified service technician.
6. Examination of Operating Environment
Operating environments will vary depending on
location, climate and surrounding conditions.
Installation location also can cause operational
problems. Consult your reseller concerning
operational environment requirements.
7. Inspection of Cooling Capacity
Measure the difference in temperature between the
inlet of the evaporator and the cool air duct. If the
difference is out of the range given in the graphs on
page 8 proceed with the remedy suggested in the
troubleshooting chart on page 19.
Spine Fins
Inspection of Cooling Capacity
Operating Environment