Programming And Diagnostic Screens; To Enter Programming And Diagnostics; Error Code Screen; Touch Pad Function Test - Fetco HWD-2105 TOD User Manual

To enter Programming and Diagnostics

Turn power switch on lower back of unit "OFF"
Turn power switch "ON" and during first screen display touch lower (red) pad to activate (Within two seconds)
The First Programming screen "PROGRAM" will display. Shown are the default settings programmed into the equipment.
Touch upper "Touch Function Selector" to scroll through the programming lines. The lower selector saves the selection
Touch lower (red) pad-tapping with finger repeatedly to scroll through the screens and active outputs.
Setting as displayed is saved when exit is selected.
Default settings for FETCO® HWD-2105 Temperature on Demand Hot Water Dispenser
Main Programming Screen-
Select °F or °C temperature
units , dispense and the four
temperature positions.
Tank temperature can be set
to correct for high altitude
and other reasons.
Hot water tank temperature
(not dispense temp.)
selectable to 179°-207°F/82-
97°C
.
000 000 201
0510 0102 1122

Programming and diagnostic screens

Internal tank functions Output TOD functions
Internal tank functions And test points
Verify probe readings for Service function check
tank temperature, dispense for valves and heater.
valve sensor temperature Will activate for 2-3
and water level sensors. seconds
Show status of liquid level
probes for tank water level.
Touch pad verification
( instructions in following
section

Error Code Screen

Error codes are cleared by
selecting the "OTHER " screen.
Scroll and press the upper
control to "Reset Error Codes".
Press the lower selector to clear.

Touch pad function test

Verifies and tests the upper and lower touch pads for proper sensitivity.
Use after servicing, if covers are removed to check functionality of the touch pad
When selected - the indicator will display the key being touched.
The example to the right shows the UPPER -White key is active.
Touching the LOWER-Red pad will highlight the red key marker
Circuit logic digits may display variable number. Used for manufacturing
Internal Programming Error
Codes, Reset,
Service technician error report
for fault and software
diagnostics and upgrade
Error codes
050 Shorted temperature probe - tank
051 Open temperature probe - tank
052 Outlet temperature sensor shorted
053 Outlet temperature sensor open
100 Initial fill error (not filled in 6 minutes after power up)
101 Error on refill (The tank has not refilled in 1 minutes-
Possibly faulty solenoid or issue with the water line)
102 Unwanted fill (Possibly tank or internal leak)
103 Overflow error (float switch activated)
104 Lower (longer) liquid level probe fault
105 Upper (shorter) liquid level probe fault
200 Flat line temperature
201 Heater open (heater or triac failure)
7
Chart to correct for boiling point for
altitude in tank water temperature.
See INPUT Screen
Suggested
Boiling
Altitude (ft.)
Setting(°F) point (° F)
-500 207 212.9
0 207 212.0
500 207 211.1
1000 205 210.2
2000 204 208.4
2500 203 207.5
3000 200 206.6
3500 197 205.7
4000 195 204.8
4500 194 203.9
5000 194 203.0
5500 193 202.0
6000 192 201.1
6500 191 200.2
7000 190 199.3
7500 188 198.3
8000 187 197.4