MT VERNON-AE TROUBLE SHOOTING MANUAL
7020-057C
4-24-08
POWER SUPPLY TROUBLE-SHOOTING
PAGE 16
SRV7000-324 (power supply)
Items to check:
Check the AC power supply harness (#7034-201):
*
&KHFNIRUSRZHURUDEURNHQFRQQHFWLRQ
Check the DC power supply harness (#7034-221):
&KHFNIRUDEURNHQFRQQHFWLRQRUIRU'&YROWVWRYROWV
&KHFNSRODULW\0DNHVXUHWKHZLUHVDUHQRWEDFNZDUGVRQWKHKDUQHVV
5HSODFHWKHDPSIXVHRUSRZHUVXSSO\LIWKHUHDUHQRWDQ\YROWV
If unit is making a “chirping” noise & wall control is blank:
&KHFNWKHKDUQHVVIRUD³VKRUW´LQRQHRIWKHZLUHV
8QSOXJZLUHVIURPWKHFRQWUROERDUGXQWLOWKHQRLVHJRHVDZD\6WDUWZLWKWKH
GRRUKRSSHUVHQVRUKDUQHVV¿UVW
WHITE
RED
15V DC OUTPUT TO
CONTROL BOARD
(#7034-221)
AC OUTPUT TO
CONTROL BOARD
(#7034-220)
AC INPUT FROM
POWER CORD
(#7034-201)
AC INPUT FROM
POWER SUPPLY
SRV7000-456 (control board)
WHITE
BLACK
WHITE
GREEN
BLACK
FUSE: 15 AMP
250 VOLT
