Troubleshooting - Postmix - lancer S8H Installation, Operation & Service Manual

S8H Hi-Carb Superchiller 230V / 50Hz
7.2 Troubleshooting – Postmix
TROUBLE
Rusty appearance
and/or metallic taste to
water.
CO gas or water
2
escapes from
pressure relief valve.
(Observed
from CO exhaust)
2
Carb Pump Times out.
(LED on control panel
illuminated)
Poor carbonation
(low CO volume).
2
Pump leaks from shaft
seal.
Pump will not run.
www.lancerbeverage.com
Hoshizaki Lancer reserve the right to change specifications without notice.
Images are for illustration purposes only as product may vary.
CAUSE
Poor water supply - contaminated.
CO pressure too high.
2
Pump motor will not stop.
Inadequate water supply.
Lines too small or restricted.
Insufficient water supply.
Higher than expected demand.
Tube burst / valve open
downstream.
Blocked vented backflow preventer.
Coil freeze-up
Worn / defective pump.
Failed carbonator probe circuit.
Flooded carbonator.
Dirty water supply.
CO pressure too low.
2
Poor quality paper cups.
Dirty or greasy glasses.
Improperly drawn drink.
Worn pump seals.
Power failure or low voltage.
Out on Low Water Pressure LED.
REMEDY
Variable causes. Check with potable water
filter specialist for remediation.
Check CO pressure relief valve. Bleed gas
2
by opening and closing the relief valve - set
CO to 550 kpa.
2
Check carbonator control using procedure in
Section 8. Replace control or probe if
defective.
If strainer and filter are clear and line valves
are fully open, noisy pump operation
indicates insufficient water supply. Minimum
water supply is 172 kpa flowing pressure.
Check filters, taps and supply tubing for
blockages and rectify. Minimum water
supply is 172 kPa flowing pressure.
Move timeout jumper to next higher time
interval. See electrical diagram.
Check and rectify.
Inspect, repair or replace as required.
Check prechill coil for ice accumulation.
Defrost, inspect icebank probe.
Replace pump.
Check carbonator control using procedure in
Section 8. Replace control or probe if
defective.
Check carbonator control using procedure in
Section 8. Replace control or probe if
defective.
Check filters.
Check CO pressure at regulator. Should be
2
set between 550 kpa. CO inlet check valve
2
stuck, shut or blocked, repair or replace.
Purchase better quality cups.
Wash all glasses.
Open faucet all the way and draw against
side of glass or cup.
Replace pump.
Check fuses. Check power supply.
Check all incoming lines, filters, taps and
regulators for blockages.
Page 18 of 28
Part No: 68000036
No. 111 – 4 Apr 22