Frozen Forester Washer Nozzles: Heater Malfunction Alert

Had the same issue last winter with my 2014 Subaru Outback diesel. After multiple washer fluid freezing incidents, the diagnostic revealed two problems: a failed heating element in the washer heater system and corroded electrical connections at the washer pump. The washer heater stopped working due to a damaged plug connection that controls the heating element. The corrosion spread to nearby wiring, causing intermittent error codes. This was actually quite serious since the damaged wiring could have affected other electrical systems if left unrepaired. The fix required: Replacing the washer heater unit, Installing new wiring connectors, Cleaning corroded terminals in the fuse box, Updating the washer pump electrical connections After repair, switched to winter-grade washer fluid rated for extreme cold. The system has worked flawlessly since then. Worth checking the fuse box first, sometimes a blown fuse can cause similar symptoms without needing major repairs. Make sure to get the heating element tested specifically, as some shops might just replace the washer pump without addressing the actual heating system failure.

Thanks for sharing that detailed repair info. This really helps since I am facing similar issues right now on my Forester. The washer heater and frozen nozzles have been causing me trouble too. The error codes match what you described. Did you remember roughly how much the full repair cost? Also wondering if you have had any other electrical issues pop up since getting it fixed. My windshield wipers sometimes act up too so trying to figure out if its all connected.

Glad to provide an update on my Outback repair situation. The windshield washer heater issue has been completely resolved since visiting my mechanic. They found a faulty cable connection that was causing the heating element malfunction, similar to what you are experiencing. The repair was straightforward and cost 95€ to fix the defective plug connection. Since the repair, the washer fluid flows perfectly even in cold weather, and I have not experienced any other electrical problems. The windshield wipers work normally too, suggesting your wiper issues might be a separate concern. The washer heater now functions as intended, and the error codes have not returned. Make sure your mechanic specifically checks the heating element connections, as this is often overlooked when diagnosing washer system problems. Consider having your wipers checked separately, as their operation involves different electrical circuits than the washer heater system. Using winter-grade washer fluid also helps prevent future freezing issues.

Thanks everyone for the helpful responses. I took my Forester to a mechanic yesterday and the diagnosis matched what was discussed here. The washer heater had failed and some wiring needed replacement due to corrosion. Total repair came to 180€ including parts and labor. They found the heating element was completely dead and replaced the entire washer heater unit along with cleaning up the corroded connections. The clogged nozzles were also cleaned out during the service. The windshield wipers turned out to be a separate issue, just needed new blades and a minor adjustment. Everything is working great now, even in the cold weather. No more error codes or freezing problems with the washer fluid. Really appreciate the advice about checking the heating element specifically. Saved me from getting unnecessary repairs done. Will definitely stick with winter-grade washer fluid going forward.