HCMF Service Manual
For Technical Support, Call 800-537-2653.
Page 8
Doc. No. 19005309 -
Copyright
2012 Franke, Inc.
Section 4 –
Trouble Shooting Guide CONTINUED:
The Problem
Possible Cause
What To Check & Do
Temperature
Display Reads
Temperature But
Freezer Does Not
Cool To 0° F
Set point too high
Adjust thermostat setting.
(See Adjustment A2)
Door and/or Rolling Lid
leaking cold air
Inspect door and lid gaskets for damage. If needed
replace.
(See Tips T-1)
Evaporator fan not
functioning
Check fan for blockage. Clear blockage if found.
Check motor and replace if not running properly.
(See Tips T-10)
NOTE:
It is normal for the evaporator fan(s) to
cycle on-and-off when the compressor isn’t
running.
Evaporator coil blocked
with ice
Check temperature controller circuit for defrost
heater. Does relay close when manual defrost is
initiated? If not, replace temperature controller.
(See Tips T-2)
Check high temperature cutoff switch for proper
function. If needed, replace.
Check the defrost heater integrity. If needed,
replace defrost heater.
(See Tips T-9)
Refrigerant charge is
not correct or system
has a leak.
Inspect service valves, lines, joints and
components for signs of leaks, kinks or restrictions.
Check system pressure and check for leaks. If
leak is found, repair leak.
Condensing unit is not
starting properly or is
tripping on overload.
Ensure condenser coil is clean, unobstructed and
being cleaned every three months (or more
frequently, if needed) per HCMF PMM Page
instructions. If dirty or obstructed, vacuum or brush
out condenser coil and notify unit manager.
Check condenser electrical components for defects
(start-capacitor, start-relay, condenser fan motor,
compressor, etc.) Replace if needed.
(See Tips)