TROL switch on the replacement
m e t e r panel to the power distribu-
u n i t through the slot in the cabinet.
tion panel.
R e p l a c e and tighten the screws.
T a g and disconnect the leads from
(2)
( 4 ) Connect the wires to the temperature
the meter terminals.
c o n t r o l unit.
(3)
Remove the screws that hold the
d. Removal and Replacement of HEAT-
meter to the meter panel and lift out
O F F - F A N Switch.
the meter.
(1) T a g a n d u n s o l d e r t h e t i r e s a n d
(4)
Connect the leads to the replacement
s t r a p connected to the switch.
meter.
( 2 ) R e m o v e the ringnut that secures the
P o s i t i o n the meter in the panel and
(5)
switch through the top of cabinet
t i g h t e n the screws.
a n d remove the switch.
R e p l a c e the meter panel and tighten
(6)
( 3 ) Solder the strap and the wires to the
the screws.
r e p l a c e m e n t switch.
( 4 ) P o s i t i o n the switch and tighten the
ringnut.
a. Preliminary Procedures. Before perform-
e . Removal and Replacement of Reset Cir-
i n g the repair procedures in b t h r o u g h g b e -
cuit Breaker.
low, remove the heater from its mounting
(1) L o o s e n t h e s c r e w s a n d r e m o v e t h e
base (para 38a) and remove the backplate
insulated wires to the circuit breaker.
and bottom plate as follows:
Loosen the bolt and remove the bare
R e m o v e the screws that secure the
copper wire from the heating ele-
bottom plate to the heater.
ment.
R e m o v e the screws that secure the
(2) Remove the mounting screws that
b a c k p l a t e to the bottom plate, and
fasten the circuit breaker to the cab-
r e m o v e the bottom plate.
i n e t and remove the circuit breaker.
(3) Loosen the power cord clamp on the
(3) C o n n e c t t h e i n s u l a t e d w i r e s ( ( 1 )
above) to the replacement circuit
backplate.
breaker. Connect the bare copper
R e m o v e the screws that secure the
w i r e to the heating element.
b a c k p l a t e to the heater and remove
Caution: Do not alter the shape or
the backplate.
length of the bare copper wire.
b. Removal and Replacement of Power Cord.
( 4 ) Position the circuit breaker and re-
Loosen the screws and remove the
place and tighten the mounting
t h e power cord leads from terminal
screws.
b o a r d TB1 (fig. 32).
Pull the power cord out of the clamp
f . Removal and Replacement of Motor and
i n the backplate (fig. 31).
Impeller.
Insert a new power cord through the
(1) R e m o v e the screws that secure the
m o t o r bracket to the cabinet and lift
clamp in the backplate.
C o n n e c t the leads to terminal board
out the motor bracket.
TB1.
( 2 ) T a g and disconnect the motor leads
c . Removal and Replacement of Tempera-
a t the HEAT-OFF-FAN switch and
ture Control Unit.
at the taped splice in the heating ele-
ment cable.
(1) Loosen the screws and remove the
( 3 ) R e m o v e the screws that secure the
w i r e s from the temperature control
unit.
m o t o r to the bracket.
( 2 ) Remove the screws that secure the
( 4 ) U n s c r e w the metal fastener that se-
u n i t to the cabinet and remove the
cures the impeller to the motor shaft
unit.
a n d remove the impeller.
(3) Insert the TEMPERATURE CON-
(5) P o s i t i o n and secure a replacement
