ALLIANCE T30 Series Troubleshooting Manual page 113

56. Unit Will Not Heat – Electric (continued)
Please see following page for wiring diagram information.
70291301
No Heat
continued.
(12)
Is there voltage across
the stove limit?
NO
(13)
Is there voltage across
the coil(s) of the heater
contactor(s)?
YES
(14)
Is there voltage to the
L1, L2 and L3
terminals of HC1?
YES
(15)
Is there voltage to the
L1, L2 and L3
terminals of HC2?
YES
(16)(17)(18)
Is there voltage across
T1 & T2, T2 & T3 and
T3 & T1?
YES
Do all elements
produce heat?
YES
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Micro Display Control Troubleshooting
YES
Replace the stove
limit.
Correct wiring
NO
between heater
contactor and stove
limit.
NO
Correct wiring
between HC1 and
Line voltage.
NO
Correct wiring
between HC2 and
Line voltage.
Check for
NO
proper operation of
contactors, replace
them if necessary.
Check elements for
NO
shorts or opens.
Check wires
between contactors
and elements.
Note: Please make
the oppropriate
adjustments if your
unit is single phase.
Unit is operational
TMB1842S
TMB1842S
111