Foster FHG 3L - Manual (Page 9)

8
Case Faults and Possible Solutions
No Problem Possible Cause Solution
1
Display Shows
ERR1
ERR2
ERR3
ERR4
ERR5 Probe Failure, Probe with the same
number broken or has a bad
connection
1 = Thermostat Probe
2 = Defrost Probe
3 = Cabinet Probe
4 = Condenser Overheat Probe
5 = Condenser Overheat Probe
Check connection or change
probe.
2
Display shows Err6 and the
cabinet lights are off
= Condenser Overheat Alarm
Indicates dirty condenser or
condenser motor failure.
Condenser blocked or cabinet to
close to the wall Check / Clean condenser
Change fan motor
Check for sufficient clearance at
rear of machine
3
Display Shows Off
= Cabinet shut down due to
condenser overheat
Indicates dirty condenser or fan motor
failure.
Check Condenser cleanliness
Check condenser fan motor and
refrigerant circuit function
4
Display shows off when
plugging in the cabinet after
changing the controller
1) Parameter C2Pd in SEn folder set
wrong. Value should be 4 when
cabinet with 1 condenser (=4 probes).
NOTE! Off-text appears with 1-2 min
delay after starting up the cabinet.
2) Parameter Sdt (shut down delay) is
set to 0 min. NOTE! Off-text appears
directly after starting up the cabinet
3) Probe 4 or 5 broken or badly
connected. NOTE! Err 4 (or Err 5) text
appears directly after plugging in the
cabinet. Off-text appears with 1-2 min
delay
1) Change parameter C2Pd to 4
2) Change parameter Sdt to 1
3) Change probe/s 4 or 5. Check
connection
5
Display shows 8888 or shows
nothing
1)Start Failure
2) Display or display cord failure
3) Controller failure
NOTE! Start failure fixed in NRC-
100 with software version C1.0 or
later (manuf. date 15/08 or later)
1) Disconnect the cabinet and
plug in again.
2) Change display or display cord
3) Change controller
6
Display shows radically other
value than 0…5º under normal
running conditions
1) Cabinet set too cold
2) Other probe than cabinet
temperature probe (e.g. 3) showing
on the display
3) Probes incorrectly connected 1) Change St1 value
2) Check parameter dlSP (cabinet
temperature = 3)
3) Check connections
7
Compressor Cut-in and Cut-
outs not following Set-value
(and the differential) Cabinet running on minimum running
time(Lon) and minimum stop time
(CoFF)
If the cabinet temperature is OK
there is no need for service.
If the products is too cold raise
the set value, and if necessary
increase the differential
8
Parameter values not possible
to set as whole numbers
(e.eg. 1.0, 2.0, 3.0 and so on
Controller malfunction Change controller