Advanced Troubleshooting - Borg & Overstrom U1 Install & Operation Manual

Advanced Troubleshooting

Fault Diagnostics
Problem/Report
No Water Dispensing
No Sparkling Water*
Poor Quality Carbonation*
Borg & Overström
Possible Cause
Water Pressure Regulator
No CO2 pressure, check by operating
pressure relief valve on carbonator tank.
Carbonator Tank Not Filling
Incorrect CO2 Pressure
Air in Carbonator Tank
Residue in Carbonator Tank
Carbonator Tank is Overfilled
Install & Operation Manual
Suggested Action
Check water tank flow through the
regulator. Replace if necessary.
Check CO2 bottle, regulator and non-
return valve. Supply pressure should be 58
psi (4bar), adjust or replace as necessary.
Check carbonator probe for possible short
circuit to ground.
Check for pump timeout, cycle power off
& on then purge carbonator.
Check supply to water pump (230V AC),
if voltage present & pump inoperative -
replace pump.
If voltage not present & pump is not
timed out, check control board fuses. If
necessary replace control board.
Check CO2 bottle, regulator and non-
return valve. Supply pressure should be 58
psi (4bar), adjust or replace as necessary.
Isolate the power supply and operate the
sparkling water tap until gas is expelled.
Allow gas to expel for 5 seconds. Switch
on power supply and allow the tank to
refill.
After prolonged use, a surface film can
develop within the carbonator tank. Refer
to cleaning and sanitising instructions.
If pump runs continuously, check
connections to tank level probe, if problem
persists replace the PCB.
21
*Sparkling versions only.
GB