Safety Features & Error Codes - Wells WATER-MAX Owner's Manual

SAFETY FEATURES
Water-Max™ will not flow water from the dispense nozzle unless the
water tank is in place. (Error lamp and audible alarm on continuously.)
Water-Max™ will not dispense into a full water tank.
The water tank heater will not heat unless the connector on Water-
Max™ is fully mated with the tank receptacle. The heater on the water
tank is protected by an over-temp safety switch which will disable the
heater if the tank is allowed to run dry.
Water-Max™ cannot be energized (green power light will not be lit)
unless sufficient inlet water pressure is sensed.
Water-Max™ will go into error mode unless sufficient temperature rise
is sensed between inlet and output water while in the heating mode.
Water-Max™ will go into error mode and stop dispensing after approximately
96 minutes of continuous operation (i.e. 96 minutes without sensing a
"tank full" condition).
ERROR CODES
Open or disconnected INPUT TEMPERATURE
thermocouple.
→
Check connections at control board.
→
Check continuity of input temperature probe*.
Open or disconnected HEATER TEMPERATURE probe
→
Check connections at control board.
→
Check continuity of heater temperature probe*.
Open or disconnected OUTPUT WATER TEMPERATURE
thermocouple.
→
Check connections at control board.
→
Check continuity of output temperature probe*.
Insufficient WATER TEMPERATURE RISE
Must exceed 14ºF rise in 20 seconds.
→
Verify input water pressure does not exceed 40 p.s.i.
→
Verify input voltage. Delime unit.
→ Check resistance for both thermocouples (2-5 Ω),
plus thermocouple leads to heater (0-2 Ω).
A shorted thermocouple, or one detached from the
heater, will cause an error 4*.
DISPENSE ERROR. Exceeds 60 liters of continuous flow.
Turn power off. Wait 20 seconds. Turn power back on.
Heater Safety Thermostat Open
→
Fan not operating or dirty
DELIME ERROR
→
Delime unit
* A short or loss of continuity in heater, input or output
thermocouple requires replacement of the inductive heater
assembly. Field repair of the heater is not recommended.
SAFETY FEATURES & ERROR CODES
Removal of the top, front or
side panels results in
exposed electrical circuits.
Any procedure requiring the
removal of a panel must be
performed by a qualified
technician only.
NOTE: There is a 5 second
delay between the time the
power switch is turned on and
the time Water-Max™ begins
operation.
NOTE: Error codes are
displayed on the control
circuit board readout.
To reset an error code,
correct the cause of the error,
then press the power switch
to OFF. After 20 seconds,
turn the power switch back
ON.
NOTE: Initial startup may
require multiple resets of
code 4 condition.
19
CAUTION:
SHOCK HAZARD