Auxiliary Switch Installation
(Based on Flex-a-lite part #31148, not included)
1.Attach the positive fan motor wire to the #1 post of the switch.
2.Attach the negative fan motor wire to a ground, e.g. negative side of battery, chassis.
3.Attach a 12 V positive source to the
#2 post of the switch.*
4.To illuminate switch, attach a
ground to #3 post of the switch.
*Use an appropriate inline fuse.
Part No. 99820 4/99
The Flex-a-lite Limited Warranty
Flex-a-lite Consolidated, 7213-45th Street Court East, Fife, WA, 98424 Telephone No. 253.922.2700, warrants
to the original purchaser user, all Flex-a-lite products to be free of defects in material and workmanship for a
period of 365 days (1 year) from date of purchase. Flex-a-lite products failing within 365 days (1 year) from
date of purchase, may be returned to the factory, transportation charges prepaid. If, on inspection, cause of
failure is determined to be defective material or workmanship and not by misuse, accident, or improper instal-
lation, Flex-a-lite will replace the fan free of charge, transportation prepaid. Flex-a-lite will not be liable for
incidental, progressive, or consequential damages. Some states do not allow the exclusion or limitation
of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This war-
ranty gives you specific legal rights and you may also have other rights, which vary from state to state.
Adjustable Temp. Sensor Installation
(Based on Flex-a-lite part #31147, not included)
1.Attach positive fan motor wire to the #1 post of the temperature controller.
2.Attach negative fan motor wire to ground.
3.Attach a 12V positive source to the #3 post
of the temperature controller.*
* Use an appropriate 20 amp inline fuse.
Note: See temperature control
package for temperature setting
and probe installation.
Ground
#3 Post
Ground
#2 Post
#1 Post
12 V Pos (+)
Aux. Switch
#31148
Auxiliary Switch Installation
Ground
#1 Post
#3 Post
Sensor Probe
12 V
Pos (+)
Adjustable Temp.
Sensor #31147
Inline
Fuse
Inline
Fuse