• Register Today It's free! This box and some ads will disappear once registered!

How do I troubleshoot my heater?

Garp2014

New Member
Joined
January 14, 2014
Messages
2
Reaction score
0
Year, Model & Trim Level
1998 Explorer
My 1998 Explorer Heater fan works intermittently. When it works it works on all speeds as normal, but then next time NOTHING! Not a whimper out of it. How do I troubleshoot this? Where do I start? Should I suspect a switch? Or a relay? Or a resistor? Or all three?
 




stress301

New Member
Joined
January 14, 2014
Messages
9
Reaction score
0
City, State
Port Aransas Texas. Island Time....
Year, Model & Trim Level
01 Exp. xls 175000mi.
Check for power at blower motor. If no power at motor, check for power at blower resister which is mounted next to fan motor.You should have power on two wires,one coming from switch the other going to fan.If you have power going to resister ,the resister is bad
 




Garp2014

New Member
Joined
January 14, 2014
Messages
2
Reaction score
0
Year, Model & Trim Level
1998 Explorer
Thanks, but the problem is that it is an on-again, off-again situation. But I'll put my meter on it and see what I can see.

Garp2014
 




Top