Thermal Switch 39342

The Thermal Switch (part# 39342) is the over-temperature cut-out on the Tornado CK 14/2 Pro, model 98152, and the Powr-Flite Borelli Dual Pro (PV160-W14-U). The factory lists it specifically for the 14/2, which is why the part name carries the model.

It does a different job from the circuit breaker. The breaker reacts to current and protects the brush motor from a jam; the thermal switch reacts to heat and protects the machine from running hot. Heat on an upright almost always means restricted airflow — a full bag, a blinded filter, a blocked hose — because the air that carries the dust is also the air that cools the motor.

Compatible Models

• Tornado CK 14/2 Pro, model 98152
• Powr-Flite Borelli Dual Pro (PV160-W14-U)

A machine that cuts out and restarts

The classic pattern is a vacuum that runs for ten or fifteen minutes, stops, and then runs again after a break. That is the thermal switch working correctly, and the fault is upstream of it. Change the bag, check both filters, and look through the hose for a blockage before touching the switch itself.

Replace the switch when it cuts out early on a machine with clear airflow, or when it will not reset at all. Treating a tripping thermal switch by replacing it, without finding the restriction, removes the protection and leaves the machine running hot — which is how a bag change turns into a motor.

Twin City Vacuum has been selling and servicing Tornado equipment since 1956. Call 763-535-0770 with your model and serial number and we will confirm the part before you order.

Frequently Asked Questions

Which machines does this switch fit?

The Tornado CK 14/2 Pro, model 98152, and the Powr-Flite Borelli Dual Pro (PV160-W14-U).

How is it different from the circuit breaker?

The breaker reacts to current and protects the brush motor from a jam. This reacts to heat and protects the machine from running hot, which on an upright almost always means restricted airflow.

My machine runs, stops, then runs again after a rest. Is the switch faulty?

Probably not – that is the switch doing its job. Change the bag, check both filters and look through the hose for a blockage. The restriction is the fault, not the switch.