Cooling Fans - GE PGS908 Technical Service Manual

Cooling Fans

The PGS908 and PGS975 use 2 cooling fans for
cooling the oven components. The PGS968 uses a
single fan. The cooling fans are located on the rear
of the range. Air is pulled in by the fan blades and
circulated in the component compartment located
under the burner box. The air is exhausted through
louvers below the control panel and out the slots
above the door.
Cooling Timing Parameters PGS908
The cooling fans will not turn on immediately when
a cooking function is set. THEY WILL TURN ON AFTER
12 MINUTES. The cooling fan comes on when the
oven is on. If the temperature is over 300°F (149°C)
and the oven is turned off, the fans will remain on
until the temperature drops below 300°F (149°C).
Cooling Timing Parameters PGS968
The cooling fan comes on when the oven is on.
If the temperature is set over 300°F (149°C) and
the oven is turned off, the fan will remain on until
the temperature drops below 300°F (149°C) or 85
minutes has elapsed.
Cooling Timing Parameters PGS975
The cooling fans will not turn on immediately when
a cooking function is set. THEY WILL TURN ON
AFTER 12 MINUTES. If the temperature is set over
300°F (149°C) and the oven is turned off, the fans will
remain on until the temperature drops below 300°F
(149°C) or 85 minutes has elapsed.
The resistance of the cooling fan(s) can be checked
on the ERC. Place the control panel in the service
position. (See
Touch Panel and ERC
PGS908 - To check both fans, test between N and J4
pin 1.
PGS968 and PGS975 - To check the fan(s), test
between N and LIGHT FOD.
Each cooling fan has an approximate resistance
value of 24 Ω.
PGS908 and PGS975 - The approximate parallel
resistance value of the 2 fans is 13.4 Ω. A value of
approximately 24 Ω indicates an open fan motor or
wiring.
PGS968 - The approximate resistance value of the
To remove the cooling fan(s):
1.
2.
3.
4.
5.
6.
.)
– 37 –
Remove the oven door. (See
Remove the range from the installation. (See
.)
Range Removal
Remove the rear cover. (See
Disconnect wires to the cooling fan.
Remove the three 1/4-in. hex-head screws and
the cooling fan.
Remove the four 1/4-in. hex-head screws and
the bracket attached to the cooling fan.
Bracket
.)
Oven Door Removal
.)
Rear Cover Removal
Disconnect
Wires