PH
-SERIES
43
19.0
TROUBLESHOOTING
NO POWER TO HEATER
CAUTION:
Prior to performing any service or maintenance work on the unit:
a)
disconnect the electrical supply
b)
shut off gas to supply unit
c)
make sure unit has cooled down before opening service panel
Warning:
Only allow qualified, licensed, service people trained to service gas fired heating equipment to perform any
repairs on this unit. All replacement parts
MUST
originate from the manufacturer of this heater in order not
to void CGA/AGA certification.
Safety devices are not allowed to be rendered inoperative and left unattended. Failure to do any of the
above can cause property damage, injury or death.
INITIAL ELECTRICAL CHECKS
a)
Make sure thermostat is calling for heat.
b)
Make sure electrical connection is secure.
c)
Check electrical supply for blown fuse or breaker.
d)
Test for power to burner head.
e)
Check wiring to components. Refer to wiring diagrams on pages 33 to 32. Also refer to legend
below; this legend is located on the control module.
TERMINAL DESIGNATIONS
S1
NOT USED
GND
SYSTEM GROUND (GREEN)
V2
VALVE GROUND (BROWN)
R
NOT USED
L1
120/240 VAC INPUT (HOT) (BLACK)
IND
INDUCER BLOWER OUTPUT (BLACK)
V1
VALVE POWER (WHITE)
PSW
PRESSURE SWITCH INPUT (RED)
W
THERMOSTAT INPUT (RED)
CAUTION:
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation. A functional checkout of a replacement control is recommended.
Verify proper operation
after servicing.
Attention. Au moment de
I’
entretien commandes, étiquetez tous les fils avant Ie débranchement.
D’erreurs de
câblage peuvent entraîner un fonctionnement inadéquat et dangereux. S’assurer que I’ appareil fonctionne
adéquatement une fois I’ entretien termine.
