Car Heater Circuit 1

[umgupta2]

Hi, this is my first post:
I am computer engineer in traning, and I have a very basic question regrading circuits:

the circuit For the interior car heater looks like the following

http://members.shaw.ca/sumitgupta/fan-circuit.jpg

and my question is this that this car hearter's fan quit after about 5 minutes of testing it. and I want to fix it, but I am not sure how to go about doing that?
any help is appericiated

 

[itsmoked]

I'll tell you that is no heater circuit in any car... It has numerous things wrong with it! I do not see how we can help since you are asking for help via an essentially imaginary schematic?

Keith Cress
Flamin Systems, Inc.-

http://www.flaminsystems.com

 

[VEBill]

It looks like the sort of AC-Powered portable heater that you drag out to the car and plug into an extension cord. These are not uncommon in Canada (where it appears Mr. Gupta is posting from). Hopefully he doesn't leave it running more then a few minutes in the morning otherwise it'll show up on his power bill.

Although it is probably not worth fixing, he could:

-check to make sure that it isn't the thermostat simply switching off the unit when it reaches the set temperature.

-check to make sure that the unit isn't overheating (tripping the motor's thermal protection switch). But it is a bit of a weird circuit in that if the heater element is cooking the motor, then switching off the air flow isn't likely to improve the situation...

Since they're only $15 - $20, I'd get a new one (or do without).

 

[jraef]

Just a reminder, no homeowner project postings are allowed.