Foster FD2-10 User Manual

19
Troubleshooting
Problem
Possible Cause
Solution
Compressor will not start
No voltage in socket
Use voltmeter to check
Electrical conductor or wires may be
cut
Use ohmmeter to check for continuity
Defective electrical component:
thermostat, relay, thermal protector etc
Replace defective component
Compressor motor has a winding open
or shorted
Measure ohmic resistance of main and
auxiliary winding using ohmmeter.
Compare with correct values
Compressor stuck
Change compressor
Temperature control contacts are open
Repair or replace the contacts
Incorrect wiring
Check wiring diagram and correct
Fuse blown or circuit breaker tripped.
Replace fuse or reset circuit breaker
Power cord unplugged
Plug in power cord.
Controller set too high
Set controller to lower temperature.
Cabinet in defrost cycle
Wait for defrost cycle to finish
The temperature is too cold
Controller is set at a very cold position
Set to warmer position and check if the
compressor stops according to
controllers operating range.
Controller does not disconnect the
condensing unit
Check the insulation of the thermostat.
If problem persists, change the
thermostat
Control contacts are stuck closed
Change the control. Check amperage
load
Defective or incorrect temperature
control
Determine correct control and replace.
The temperature is not cold enough
Controller is set at a very warm
position
Adjust to colder setting
Condenser is dirty
Clean condenser
The refrigerator has been placed at an
inadequate location
The unit must not be near stoves, walls
that are exposed to the sun, or places
that lack sufficient air flow.
Compressor is inefficient or there is a
high pressure due to the air in the
system
If there is air in the system, purge and
recharge
Iced up evaporator coil
Check temperature control, refrigerant
charge, and defrost mechanism.
Remove all ice manually and start
over.
Restriction in system
Locate exact point of restriction and
correct
The refrigerator has been used
improperly
The shelves must never be covered
with any type of plastic or other
material that will block the circulation of
cold air within the refrigerator.
Too many door openings
Advise user to decrease if possible
Excessive heat load placed in cabinet
Advise user not to put in products that
are too hot.
The refrigerator has been overcharged
with the refrigerant gas
Check to see if condensation or ice
crystals have formed on the suction
line. If so, charge with the correct
amount of gas.

Foster FD2-10 Specifications

General

Brand	Foster
Model	FD2-10
Category	Controller
Language	English