Dulas Solar VC150, Handbook

Page: 76 / 156

76
D FAULT FINDING AND REPAIR TASKS DESCRIPTIONS
D.1. USER MAINTENANCE TASKS
The user is responsible for undertaking routine maintenance tasks. If the refrigerator
stops operating correctly, the user is also trained to do simple checks before calling
for the solar refrigerator technician.
IT IS YOUR RESPONSIBILITY TO:
●
MAKE SURE THAT THE USER HAS DONE ALL OF HIS MAINTENANCE TASKS
CORRECTLY, AND THE SIMPLE FAULT FINDING CHECKS BY RE-DOING THE
SAME TASKS, AND
●
TRAIN THE USER IF ALL TASKS ARE NOT DONE CORRECTLY.
Technician Action required
(a)
Check that the DAILY RECORD SHEETS of the user are filed in correctly.
Check:
●
the refrigerator temperature record. The refrigerator should ALWAYS been
operating above 0
0
C.
●
if there is a record of warning indicator light being lit. The warning indicator lights
are normally labeled as “Do not Freeze Ice Packs” and “Low Battery State of
Charge” or “Refrigerator Disconnected”.
(b) Check that the refrigerator is switched ON, if not, turn it ON.
(c) Check that no obstacles are preventing free air circulation around the refrigerator.
(d) Check that the ice formation on the evaporator is less than 5 mm thick. If it is
more, defrost the refrigerator.
(e) Find out from the User if defrosting is often necessary, if he says ‘Yes’ then check
the lid of door sealing gasket. If the seal is not making good contact, either:
●
glue it back on,
●
replace the seal, and/or
●
adjust the door.