Hey so I’ve read lots and lots of similar stories with similar issues on this forum but I still can’t solve the issue so here is my own experience on the matter.
The in-laws have a 2007 Forester (Australian model) and I was informed there was no power to the blower motor as the connection had burnt out. I checked all fuses and relays and nothing was burnt out (odd that the 15A fuse at driver fuse box had not blown?). Also pulled back black plastic and tape to see if any shorting out on cables at the blower motor which there was not. Next I measured resistance on the blower motor resistor as per other threads and everything checked out.
My thought was that the AC blower motor had worn out overtime and drawing too much current and needed replacing. I ordered a second hand one from a shop here in AUS and installed. Then I spliced in new wires and spade connectors as others did in other threads. I also put an inline fuse in to make sure if it were to still happen that it blew this fuse as the stock one was not initially popping (as it seemed to not do for others also).
Everything seemed to be working again except after running blower speed on ‘4’ for a while the 15A in line fuse pops. So I put my clamp meter around the positive wire and run again while idling on all speeds;
Speed 1 reading 4A, speed 2 reading 7A, speed 3 reading 12A & speed 4 reading 19A. If the stock fuse is 15A it seems that speeds 3 & 4 seem a little high.
After this I pulled off centre console and checked behind AC dials and no evidence of burnt connections or shorting out cables.
My question now is what should my next approach be with this problem? AC technically working on low speeds but burning out fuse on max speed.
Is it still worth replacing the blower resistor?
Could the second hand blower be dodgy also?
I’m stumped here guys, any help is much appreciated.
Thanks in advance!
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The in-laws have a 2007 Forester (Australian model) and I was informed there was no power to the blower motor as the connection had burnt out. I checked all fuses and relays and nothing was burnt out (odd that the 15A fuse at driver fuse box had not blown?). Also pulled back black plastic and tape to see if any shorting out on cables at the blower motor which there was not. Next I measured resistance on the blower motor resistor as per other threads and everything checked out.
My thought was that the AC blower motor had worn out overtime and drawing too much current and needed replacing. I ordered a second hand one from a shop here in AUS and installed. Then I spliced in new wires and spade connectors as others did in other threads. I also put an inline fuse in to make sure if it were to still happen that it blew this fuse as the stock one was not initially popping (as it seemed to not do for others also).
Everything seemed to be working again except after running blower speed on ‘4’ for a while the 15A in line fuse pops. So I put my clamp meter around the positive wire and run again while idling on all speeds;
Speed 1 reading 4A, speed 2 reading 7A, speed 3 reading 12A & speed 4 reading 19A. If the stock fuse is 15A it seems that speeds 3 & 4 seem a little high.
After this I pulled off centre console and checked behind AC dials and no evidence of burnt connections or shorting out cables.
My question now is what should my next approach be with this problem? AC technically working on low speeds but burning out fuse on max speed.
Is it still worth replacing the blower resistor?
Could the second hand blower be dodgy also?
I’m stumped here guys, any help is much appreciated.
Thanks in advance!
