TCT-35, TROUBLESHOOTING
- 3 -
PROBLEM: Low temperature or cold water in the heating tank.
POSSIBLE CAUSE
SOLUTION
Thermostat is
turned off
Check to see that the thermostat is turned on. Twist the stem clockwise as far as it
will go.
PROBLEM: No response when Brew Switch is depressed. No hot or cold water dispensed.
POSSIBLE CAUSE
SOLUTION
Water line turned off
or filter clogged
Faulty Brew Switch
WC-122
Faulty Brew Timer
WC-655
Disconnect the water line from the inlet valve and check the water pressure. Recon-
nect the water line. Replace the filter cartridge and remove any obstruction. Note:
The minimum pressure on the inlet valve should be 20 PSI.
While pressing the Brew Switch, check for continuity between the two side termi-
nals, 4B and 5B. If you do not read 110 - 120V from 5B to L2, the switch is defec-
tive. Replace the switch.
a. With a voltmeter, check the incoming power across terminals L1 and L2
(you should read 110 - 120V). If correct, the timer is energized.
b. Check the voltage across terminals S/S and L2 while pushing the brew switch.
At this time the timer should be energizing the coils of the water inlet valves to
open them. You should read 110V to 120V between the terminals of each coil. If
there is no voltage, replace the timer.
PROBLEM: No hot water flowing from Sprayhead. Only cold water cycles.
POSSIBLE CAUSE
SOLUTION
Faulty Water Inlet
Valve Coil, WC-824
Faulty Brew Timer,
WC-655
With a voltmeter, check for voltage to the valve coil for the HOT water side. If there is
power to the coil and no water is flowing, the valve must be replaced.
With a voltmeter, check the voltage across terminals L2 and HOT terminal (press
brew switch to test). If voltage is not present, timer is faulty.
Faulty Water Inlet
Valve, WC-824
Faulty Brew Timer,
WC-655
PROBLEM: No cold water is flowing from the outlet.
POSSIBLE CAUSE
SOLUTION
With a voltmeter, check for voltage to the valve coil for the COLD water side. If there
is power to the coil and no water is flowing, the valve must be replaced.
With a voltmeter, check the voltage across terminals L2 and COLD terminal. If
voltage is not present, timer is faulty.
CONTINUED... PROBLEM: Water in Tank does not get hot.
POSSIBLE CAUSE
SOLUTION
Burned out heating
element
Read the current with a clamp ammeter on one of the two 14 gauge wires connected
to the element. Turn on the machine. The meter should read approximately 16
amperes. If you cannot get an ampere reading, use a voltmeter to check for voltage
across the heating element terminals. If there are approximately 115 volts, the
element is burned out. Replace elements.