MN-35949 • Rev 04 • 06/16 • Combitherm® CT PROformance™ Series • Technical Service Manual • 65
Troubleshooting
PROformance, Electric, Boiler-Free: No Steam Production — Steam Below 212°F
(100°C)
Is the convection fan
motor spinning?
Yes
No
See "Convection Motor is
Not Spinning".
Is the N6 probe below set
point?
No
The appliance will not call for
steam production until the N6
probe is below set point. If the
N6 probe is reading incorrectly,
test the probe and replace it if
necessary.
Yes
Are the K41 and K44
convection element
contactors being energized?
No
Check for voltage across the coil
of the K41 and K42 convection
element contactors. If voltage is
present, replace faulty contactor(s).
If voltage is not present, determine
which leg is missing and correct.
Is line voltage being supplied
to terminals 2-4-6 on the K41/
K44 contactors?
Repair the wiring issue
between main terminal
blocks 1-1, 6-1, 11-1 and
the K41/K44 contactors.
Yes
Is there line voltage
across terminals 1-3-5 on the
K41/K44 contactors?
Replace faulty contactor(s).
No
Yes
Is there voltage
across element loops at the
convection elements?
Repair the wiring between
contactors and elements.
Yes
Are all element loops
drawing current?
Replace faulty element
assembly.
Yes
Is the Y1 solenoid being
energized?
Determine which line is
missing at the solenoid.
Is the Y1 solenoid valve
opening?
Replace faulty solenoid.
Is water going through the
flow control valve?
Yes
Is water being injected into
the fan wheel inside the
appliance?
Yes
Yes
No
No
No
Yes
Correct obstruction
between flow control valve
and injection tube.
A1 is L1 and it is supplied
to the K41 contactor from
the Control Board (CB)
terminal X02 pin 1.
A1 is L1 and it is supplied
to the K44 contactor from
the CB terminal X02 pin 2.
A2 is L2 and it is supplied to
K45 from the N7 high limit
terminal 11 and then jumped
over to A2 on the K22.
No
A1 is L1 supplied from CB
terminal X04 pin 3.
A2 is L2 supplied from
Y3/A2 supplied from
terminal block 27-17.
No
Inspect, clean, replace flow
control valve as necessary.
No
Appliance should begin
producing steam in 2-5
minutes.
Yes
No
Содержание COMBITHERM CT PROFORMANCE 10-10E
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