Primus D13 - Page 155

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Section 9 NetMaster Troubleshooting - Unit will not heat (Electric)
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UNIT WILL NOT HEAT (ELECTRIC)
(Sheet 2 of 2)
Please see following 2 pages for wiring diagram information.
e
ct wiring
e
n terminal 3
a
n motor
u
gal switch
r
minal 13 of
c
ontrol relay.
c
e fan motor.
e
ct wiring
en cabinet
n
d terminal 5
a
n motor
u
gal switch.
a
ce cabinet
limit.
r
ect wiring
e
n stove limit
a
binet limit.
Replace the stove
limit.
Is there voltage across
the stove limit?
Correct wiring
between heater
cotactor and stove
limit.
Is there voltage across
the coil(s) of the heater
contactor(s)?
No Heat
continued.
NO
YES
NO
YES
(12)
(13)
Is there voltage to the
L1, L2 and L3
terminals of HC1?
Correct wiring
between HC1 and
Line voltage.
Check elements for
shorts or opens.
Check wires
between contactors
and elements.
Is there voltage across
T1 & T2, T2 & T3 and
T3 & T1?
Check for
proper operation of
contactors, replace
them if necessary.
Is there voltage to the
L1, L2 and L3
terminals of HC2?
YES
NO
Correct wiring
between HC2 and
Line voltage.
(14)
(15)
YES
NO
(16)(17)(18)
NO
YES
NO
YES
Unit is operational
Note: Please make
the oppropriate
adjustments if your
unit is single phase.
TMB1845S
Do all elements
produce heat?
TMB1845S