Marco FRIIA 1000860 Series, Service Manual

Page: 32 / 46

FRIIA Service manual Page 32
ISSUE PROBABLE CAUSE SOLUTION
Too low CO
2
volume
CO
2
pressure too low Restore correct CO
2
pressure (typically about 4 bar / 60 psi)
CO
2
cylinder empty Replace CO
2
cylinder
Water temperature too high because cooling capacity is
exceeded by over drawing See refrigeration/equipment specifications vs. volume
requirements and reduce amount of glasses taken per given
time of install higher volume unit.
Air trapped inside the carbonator Open carbonator vent check valve, pulling ring, until water
streams out.
CO
2
only flows out from faucet
Carbonator Electrode connection to wiring harness defective,
loose electrical connection and/or open circuit Tighten connection, repair carbonator wiring harness
connection and check electrode connection at E.C.U.
The carbonation pump turns continuously No water is entering or the water filter is blocked or Hoses and
pipe fittings into the carbonator are obstructed.
Disassemble and clean it.
Check valve on carbonator water inlet failed open Verify correct behavior of the non-return (check valve)
assembled on the carbonator water inlet.
Inoperable water pump/ motor. Check for proper line voltage on component terminals.
Replace water pump/ motor if defective.
Electronic Control Unit (E.C.U.) defective. Replace E.C.U. assembly.
E.C.U. in timeout (> 240” continuous operation) Reset Timeout protection switching off equipment and waiting
60” before repower it.
Short cycling of water pump
motor
Carbonator Electrode connection to wiring harness defective or
reversed. Repair carbonator wiring harness connection and check
electrode connection at E.C.U.
Continuous dripping
from the outlets
Few drops, mainly after soda dispensing is normal. If dripping is
continuous faucet or internal electrovalve could be dirty. Disassemble the internal solenoid valve and clean it.
Still water comes out
carbonated
Internal check valve could be dirty. Disassemble check valve and clean it. Replace if needed.