32
TROUBLE
CAUSE
REMEDY
Compressor runs for a long time
but the barrels won't freeze down.
Caution: Contact FBD Warranty
Dept. before tapping system if
dispenser is under warranty.
Return temperature not dropping. Verify that return temperature
drops below 25°F (-3.9°C). Return
temperature should drop down to
20°F to 25°F (-6.7°C to -3.9°C)
within 7 to 25 minutes of startup
(no drinks dispensed).
Hot gas valve is activated in
Manual ON/OFF.
Turn off defrost solenoid.
Refrigeration solenoid not activat-
ing.
Check if solenoid is ON by navi-
gating through the menu. Replace
board if the solenoid does not
come ON during "freeze."
Hot gas valve is stuck open, or
debris is preventing valve from
closing.
Recover refrigerant and remove
blockage, or replace valve if nec-
essary. Recharge system with
R404-A (use the specifications
label on the back of the dispenser
for charge amount).
Refrigeration valve not opening.
1. Test refrigeration valve coil to
ensure it is receiving 24VAC.
Replace refrigeration valve
if plunger inside doesn't
move. Recover refrigerant
and replace valve. Recharge
system with R404-A (use the
specifications label on the back
of the dispenser for charge
amount).
2. Test for 24VAC output at the
harness. Replace if neces-
sary.
Expansion valve restriction.
Recover refrigerant and remove
blockage, or replace valve if nec-
essary. Recharge system with
R404-A refrigerant (use the spec-
ifications label on the back of the
dispenser for charge amount).
Refrigeration leak or low refriger-
ant charge.
Put gages on system and check
pressures. Single side suction
should be between 40-45 psig
(276-310 kPag), dual side between
45-50 psig (310-345 kPag). Single
and dual side discharge should
be 230-255 psig (1,586-1,758
kPag). Check for and repair leaks
then recharge system with R404-A
refrigerant (use the specifications
label on the back of the dispenser
for charge amount).
