A.J. Antunes & Co WD-20D 9400171 - Manual (Page 6)

6 P/N 1011152 Rev. A 03/12
Troubleshooting
problem possible Cause Corrective action
Unit will not heat up. Power cord is not plugged in. Plug the power cord into the appropriate outlet.
Circuit breaker is tripped. Reset the circuit breaker. Contact your electrician if
the breaker trips again.
Hi-limit thermostat is tripped or inoperable. Reset the hi-limit thermostat. If the unit still does
not heat up, contact your maintenance person or
Authorized Service Agency for service.
Loose, broken, or burnt wiring in the heating circuit. Contact your maintenance person or Authorized
Service Agency for service.
Faulty heating element. Contact your maintenance person or Authorized
Service Agency for service.
Faulty thermostat control. Contact your maintenance person or Authorized
Service Agency for service.
Product becomes hard and dry. Thermostat control is set too high. Adjust the thermostat control.
Product is not being kept in its original packaging. Refer to the Operation section of this manual.
Product is kept beyond normal holding times. Refer to the Operation section of this manual.
Unit is getting too hot. Thermostat control is set too high. Adjust the thermostat control.
Faulty thermostat control. Contact your maintenance person or Authorized
Service Agency for service.
Wiring Diagram
B
LK
W
H
T
5 4
2 1
POWER
SWITCH
WHT WHT
BLK BLK
GND
GRN
TERMINAL
POWER
BLOCK
CORD
W
H
T
B
LK
HI-LIMIT
THERMOSTAT
INDICATOR
LIGHT
HEATER
B
LK
/B
R
N
W
H
T
/B
LU
G
R
N
G
R
N
-Y
E
L
ELEMENT
UNLESS OTHERWISE SPECIFIED.
NOTE: ALL WIRES TO BE 16 GA. TFE-200°C
THERMOSTAT