[NefCanuck]

The reaction suggests to me that some sort of protection circuit is being tripped when you try to engage the seat. Are you able to press the button twice to get the low setting (One red light)

Just to eliminate a switch issue.

NefCanuck

 

[NefCanuck]

Ah, so you can't hit the switch twice quickly to go into lo heat mode then? Yeah something has tripped then in the circuit...

NefCanuck