Alliance Laundry Systems CA050L - Page 142

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Hybrid Timer Control Troubleshooting
71.Unit Will Not Heat – Electric – QT and RQ Control Suffixes (continued)
Please see following page for wiring diagram information.
Is there
voltage across the
coil(s) of the heater
contactor(s)?
continued from
previous page
Is there
voltage to the T1, T2
and T3 terminals
of HC1?
Correct wiring
between HC1
and line
voltage.
Is there
voltage to the T1, T2
and T3 terminals
of HC2?
Correct wiring
between HC2
and line
voltage.
Is there
voltage across
L3 & L1, L1 & L2 and
L2 & L3?
Check for
proper operation
of contactors,
replace them if
necessary.
No
Yes
No
Yes
No
TMB2318S-b
(12)
(13)
(14)(15)(16)
(11)
Correct wiring
between
heater
contactor and
stove limit.
No
Yes
Note: Please make the
appropriate adjustments
if your unit is single phase.
Unit is
operational
Do all elements
produce heat?
Check elements for
shorts or opens.
Check wires
between contactors
and elements.
Yes
Yes
No
TMB2318S-b