The one rule that decides whether spring goes well
Husqvarna’s storage guidance comes down to a single battery rule: fully charge the mower, then switch it off. There is no magic storage percentage — official guidance is full, then off. Most current models need no top-up charging all winter; Husqvarna notes only that “for some older models, the battery must be charged once every three months,” so check your operator’s manual if yours predates the Connect era.
Get this wrong and you meet it in spring: Husqvarna’s own troubleshooting says that if the mower “was stored without a full charge, the battery may be too deeply discharged to begin charging normally.” The official recovery is undramatic — bring it indoors and leave it on the charging station for several hours — but deep discharge is exactly what the 2–5 year battery lifespan estimate (Husqvarna’s published range) does not need. The published ageing signs are worth knowing too: frequent returns to the charging station, and stopping on the lawn with an empty battery and no error message.
The official storage procedure
Straight from Husqvarna’s winter storage guide:
- Clean first. Body, chassis, and blade disc — remove all clippings and debris from moving parts. Husqvarna is blunt about why: “dirty robotic mowers that are stored in cold and damp environments will have a significantly shorter service life.”
- Fit new blades and screws now, not in spring — “this prevents rust and ensures sharp cutting edges next season.”
- Fully charge, switch off.
- Store indoors, dry, above freezing — garage, shed, or basement, above 0 °C / 32 °F. That applies to the charging station too, and the power supply gets disconnected and stored dry and frost-free.
- On its wheels, on a flat surface — or on the official Wall Hanger. Not on its side, not on its back.
- Check the charging contacts on mower and station for corrosion or debris before you put everything away.
The wires stay put: boundary and guide wire “can remain installed in the ground throughout winter.” Husqvarna suggests a Connector box to protect the disconnected wire ends, and labeling each wire so spring reconnection is guesswork-free.
Model differences that change the checklist. On NERA models, only the top of the charging station needs to come inside — the baseplate is designed to stay out. And on wire-free EPOS installations (the iQ series, including the 435 iQ AWD), the EPOS reference station is weatherproof and rated for year-round outdoor use, −20 °C to 70 °C — don’t dismantle it.
What the dealer winter service actually is
Husqvarna’s official winter service, sold through authorized dealers, is a defined checklist: latest software updates, electronic diagnostic autotest, cleaning/washing, blade replacement, a battery functional test and charge, safety-function test, and a functional check, finished with a written service report. Many dealers also offer the “Automower Hotel” — your mower winters in their dry, heated storage and you collect it in spring.
Husqvarna publishes no price for any of this — it’s dealer-set, so call yours. Two contract notes from the official services pages: Service Plus and Lease Plus include off-season storage and seasonal blade replacement in participating countries, and under the free Warranty Plus extension, “yearly maintenance of the product at an authorised Husqvarna dealer is mandatory” — and that service visit is not free. If you’re relying on Warranty Plus, the winter service is effectively your compliance visit.
Spring startup, in order
Husqvarna’s season-prep sequence: put the charging station back in its spot, confirm the LED is solid green, dock the mower and charge it, confirm time and date, and take the firmware update if the Connect app offers one (updates arrive over the air). If you didn’t fit new blades in the fall, do it now — and always replace the screws with the blades. Start mowing when the grass hits 5–7 cm, with a high cutting height you lower gradually.
The errors a stored mower throws, per the official docs
No loop signal. The charging station LED is the diagnostic, and Husqvarna publishes the key: flashing blue = broken wire or faulty connection; solid blue = wire detected but installation fault; LED off = power supply issue; solid red = hardware failure in the power supply or station board (dealer); solid green with a mower that can’t find it = station fine, keep troubleshooting the mower; flashing green = ECO mode has the loop signal switched off — not a fault at all. Before assuming a winter wire break: re-seat the wire ends (“fully inserted and contacts clean”). A multimeter check should read roughly 0.8 Ω per 100 m of wire, and total boundary length must not exceed 800 m.
Charging station blocked. Docking failures after re-installation usually mean the station moved: Husqvarna calls out uneven ground under the station (“even slight dips can cause misalignment”), debris in the docking path, oxidation on the contact plates (fine abrasive pad or contact cleaner), and a guide wire that no longer runs straight for at least 2 m (7 ft) in front of the station.
Empty battery. If it’s not the deep-discharge case above, the official causes are a faulty or mispositioned guide cable, wrong search settings in the app, the mower left in Secondary Area mode, or obstacles and stay-out zones blocking the way home.
Battery temperature outside limits. In a cold snap or a hot shed, usually not a fault: “in most cases, no intervention is needed” — the mower resumes when the pack returns to range.
The PIN you forgot over winter. Five wrong attempts locks the keypad for about 30 minutes, and every further miss extends the lock, up to 4 hours — there’s no override, only the timer. Recover it instead: Connect app → More → My mowers → Mower details → Forgot PIN code, and the PIN is emailed to every account linked to the mower. Factory PIN was 0000 or 1234 depending on model, but setup forced a change.
Restart and reset, the sanctioned way
Husqvarna’s first prescription for misbehavior is a plain restart — “no settings are deleted, try this first.” NERA jog-wheel models: turn to Power off, press; hold the jog wheel 3 seconds to restart. Aspire R6V/308V/312V/R4: hold 3 seconds off, 1 second on. Older keypad models (420-era): the physical ON/OFF switch.
A deeper reset exists — app: More → Settings → General → Reset to factory settings; older keypads: Settings → General → Reset all user settings — but manage expectations: Husqvarna states flatly that “a total reset, like on a smartphone, is not possible on Automower®.” Security level, PIN, loop signal pairing, time, and language all survive it. A reset is not a way around a lost PIN or a broken loop.
Blades, since you’re already in there
The published wear intervals: standard disc blades last 3–6 weeks of normal mowing; EdgeCut blades 9–12 weeks (they only spin during edge cutting). Replace when grass tips look frayed or whitened after mowing. Every blade change means new screws — “reusing screws may lead to blades coming loose during operation” — one blade per screw, genuine Husqvarna parts only, and never mix old and new blades on the disc (imbalance means noise and vibration). Procedure: gloves, power off, mower upside down on something soft, rotate the skid plate to reach each screw. New blades should spin freely on their screws — that’s the safety design, not a loose bolt. Then reset the counter: Connect app → More → Statistics → Blade Usage → Reset.