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Davis Vantage Pro2 Replacement Parts
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In this article 16 sections
- Why the Davis Vantage Pro2 Is Worth Repairing
- Find Your Model Number Before Ordering Anything
- Which Davis Vantage Pro2 Parts Wear Out and When
- The Davis Tune Up Kit: Best Starting Point
- Davis Vantage Pro2 Full Parts Catalogue
- Davis VP2 vs Vantage Vue: Are the Parts Compatible?
- Where to Buy Davis Vantage Pro2 Replacement Parts
- Diagnosing Which Part Has Failed
- Davis Vantage Pro2 Maintenance Schedule
- Top 5 Most Replaced Davis Vantage Pro2 Parts
- Davis Vantage Pro2 Replacement Parts: Quick Reference
- Repair the Part or Replace the Station?
- Expected Repair Costs by Station Age
- Repair Difficulty by Part
- Should I Buy Used Davis Vantage Pro2 Parts?
- Frequently Asked Questions
The Davis Vantage Pro2 is one of the longest-lived home weather stations on the market. Many VP2 units installed in the early 2000s are still running today, not because they never need maintenance, but because Davis Instruments has maintained a comprehensive replacement parts catalogue that makes periodic repair practical and affordable.
This guide covers every replaceable part on the Vantage Pro2, where to find the right one for your specific model, what each part costs, and how to diagnose which part has failed before you order anything.
Davis Vantage Pro2 replacement parts are available from Amazon and directly from Davis Instruments at davisnet.com. The most commonly replaced parts are the wind cups, wind vane, rain gauge funnel and screen, and the temp/humidity sensor board. For the most cost-effective single purchase, the Davis Tune Up Kit (6997) replaces all major mechanical wear parts at once. Always find your model number before ordering: VP2 and Vantage Vue parts are not interchangeable.
Why the Davis Vantage Pro2 Is Worth Repairing
Most consumer weather stations from Ambient Weather, AcuRite, and La Crosse are designed to be replaced rather than repaired. Their parts catalogues are limited, spare parts are not always available for older models, and the cost of individual components often approaches the price of a new station within a few years.
The Davis Vantage Pro2 is different. Davis has supplied replacement parts for VP2 units going back to the early 2000s. Individual components, wind cups, vane, sensor boards, rain gauge parts, power adapters, battery doors, are all sold separately. A VP2 that is mechanically sound but has a failed wind cup assembly can be back to full operation for $25 to $45 rather than $1,000 for a new station.
This repairability is the primary reason the VP2 commands a premium price over competing stations, and it is why so many serious weather observers continue to choose Davis when they want a station they can maintain for a decade or more.
Find Your Model Number Before Ordering Anything
Davis Instruments sells replacement parts by part number, and the correct part number depends on your specific station model and manufacturing date. Ordering without confirming your model can result in incompatible parts, particularly for the transmitter board and temp/humidity sensor, where Davis updated components in 2016.
The label shows:
- Part Number (P/N): the main Davis catalogue reference, e.g. 6152C for a wireless VP2 ISS
- Serial Number (S/N): unique to your unit
- Manufacturing Code (Mfg Code): a letter code that indicates production date, critical for transmitter board compatibility
Which Davis Vantage Pro2 Parts Wear Out and When
| Part | Typical lifespan | Failure sign | Cost range |
|---|---|---|---|
| Wind cups | 3 to 7 years | Zero wind reading, erratic spikes, visible UV cracking | $25 to $65 |
| Wind vane | 3 to 7 years | Stuck direction, sluggish response, bearing wear | $40 to $50 |
| Rain gauge funnel | 5 to 10 years | Under-reporting rain, debris blockage | $15 to $25 |
| Rain gauge screen | Clean annually, replace if torn | Debris passing through, blockage | $5 to $10 |
| Tipping bucket reed switch | 8 to 15 years | Rain not registering despite clear funnel and level sensor | $15 to $25 |
| Temp/humidity sensor board | 7 to 12 years | Erratic temperature or humidity, stuck readings | $70 to $80 |
| ISS transmitter board | 8 to 15 years | No wireless signal to console despite good batteries | $60 to $90 |
| Solar panel (ISS charging) | 8 to 12 years | Battery not maintaining charge, data gaps at night | $20 to $40 |
| ISS battery | 1 to 3 years | Transmission dropout, especially at night | $5 to $10 |
| Console battery door | 5 to 10 years | Broken clip, battery compartment not sealing | $3 to $8 |
| Console AC adapter | 4 to 8 years | Console not powering on from mains | $13 to $25 |
| WeatherLink console cable | 8 to 15 years | Console not communicating with PC | $15 to $30 |
The Davis Tune Up Kit: Best Starting Point
The Tune Up Kit is the most cost-effective way to address the most commonly worn mechanical parts in a single purchase. If your VP2 is 5 or more years old and showing any signs of wear, the kit covers all the parts most likely to need replacement at this stage of a station's life.
A metric version (6997M) is available for stations outside the US. The kit does not include the transmitter board or temp/humidity sensor: those are ordered separately if electronic failures are diagnosed.
Find Davis Parts on AmazonDavis Vantage Pro2 Full Parts Catalogue
The sections below cover every commonly replaced VP2 component with part numbers, cost ranges, and where to find them. All parts are available from Amazon or direct from Davis Instruments at davisnet.com.
Standard wind cups (7905) and large wind cups (7905L) available. Replace when cups show UV cracking or when wind reads zero with no obstruction. Confirm your anemometer model before ordering.
Part AO-34542-60 (7904). Replace when direction is stuck, sluggish, or bearing shows play. The vane bearing is a known wear point on older VP2 units after 5 to 8 years.
Replace when funnel is cracked, warped, or under-reporting rain compared to nearby official stations. Clean debris screen annually before replacing the funnel.
Diagnose by pouring a measured volume of water through a clean funnel. If no rain registers despite water flowing through, the reed switch has likely failed.
Part 7346-166 (Jan 2006 to Jan 2016, manufacturing code up to AR) or part 7346-070 (Jan 2016 and later, manufacturing code AS or later). Using the wrong board causes a 0.5°C temperature offset. Check your manufacturing code carefully before ordering.
Part 7345-951 (2016 and later, US) or 7345-976 (pre-2016, US). Replace when no signal reaches the console despite fresh battery and close-range testing. Confirm manufacturing code before ordering.
5V DC adapter. Try this before concluding the console itself has failed: a dead AC adapter is the most common cause of a blank console display and costs a fraction of a console replacement.
CR123A lithium battery. The ISS solar panel charges this battery during the day for overnight operation. Replace if data gaps occur mainly at night or in low-sunlight periods.
A frequently broken small part due to the plastic clip mechanism. Sold separately by Davis and through third-party sellers on Amazon. Easy self-repair.
Davis VP2 vs Vantage Vue: Are the Parts Compatible?
| Component | VP2 compatible | Vue compatible | Notes |
|---|---|---|---|
| Wind cups (7905 / 7905L) | Yes | No | Different anemometer mounting system on Vue ISS |
| Wind vane (7904) | Yes | No | Vue uses a different integrated anemometer assembly |
| Rain collector funnel | Yes (VP2 specific) | Yes (Vue specific) | Different part numbers: do not interchange |
| ISS transmitter board | VP2 boards only | No | Different wireless protocol implementation |
| Console AC adapter | Yes | Yes | Both use same 5V DC adapter: compatible |
| Tune Up Kit (6997) | Yes | No | Vue Tune Up Kit sold separately |
| WeatherLink data logger | Yes | Yes | WeatherLink Live and WeatherLink USB compatible with both |
Where to Buy Davis Vantage Pro2 Replacement Parts
| Source | Best for | Notes |
|---|---|---|
| Amazon | Wind cups, vane, adapters, Tune Up Kit, common parts | Good availability for most popular VP2 parts. Check seller ratings on third-party listings. |
| davisnet.com | Model-specific electronic components, older parts, complete ISS | Official Davis store. Best source for transmitter boards, sensor boards, and parts no longer stocked on Amazon. |
| Scaled Instruments (scaledinstruments.com) | Specialist VP2 components, transmitter boards | US-based specialist retailer with good stock of technical VP2 components. |
| Scientific Sales | Professional parts and accessories | US specialist retailer, good for hard-to-find components. |
| eBay | Discontinued or legacy VP2 parts | Useful for very old VP2 components. Verify seller ratings and confirm part condition before purchasing. |
Diagnosing Which Part Has Failed
Before ordering any replacement, run through this diagnostic to confirm which part is actually at fault. Davis support documentation is available at support.davisinstruments.com for model-specific guidance.
| Symptom | Most likely cause | Diagnostic step |
|---|---|---|
| No data on console | Dead ISS battery or transmitter board failure | Replace CR123A battery first. Test at close range with fresh battery. If no signal, transmitter board has likely failed. |
| Wind speed always zero | Wind cups jammed, UV cracked, or anemometer bearing seized | Spin cups by hand. If stuck, clean. If cups spin freely but zero still reads, anemometer cable or transmitter issue. |
| Wind direction stuck | Wind vane bearing seized or debris obstruction | Move vane by hand. If stiff or seized, replace vane assembly. |
| Rain not recording | Funnel blocked or reed switch failure | Clean funnel and screen first. Pour 100ml through clean funnel, if no rain registers, reed switch has failed. |
| Temperature reading high | Solar radiation error or failed radiation shield aspiration | Check that the fan-aspirated shield is running (fan audible). Clean solar panel. Consider fan-aspirated shield upgrade. |
| Temperature erratic | Temp/humidity sensor board degradation | Replace ISS battery first. If still erratic, sensor board replacement required: confirm manufacturing code before ordering. |
| Console not powering from mains | Failed AC adapter (most common) | Try a replacement 5V DC adapter: costs $13 to $25 and fixes most blank console issues before assuming console failure. |
| Data gaps at night only | ISS solar battery not holding charge | Replace CR123A battery. If gaps continue, solar panel may need replacement. |
Davis Vantage Pro2 Maintenance Schedule
Routine maintenance extends the life of every VP2 component. Davis Instruments recommends annual inspection as a minimum for all station components.
Every 6 Months
- Clean rain gauge funnel and debris screen
- Wipe ISS solar panel with a damp cloth
- Check wind cup bearings for play: spin by hand and listen for roughness
- Verify all readings against nearby official station data
Annually
- Replace ISS CR123A battery regardless of apparent charge level
- Check wind vane bearing for stiffness: apply a small amount of approved lubricant if specified in your manual
- Recalibrate barometric pressure to local sea-level equivalent
- Inspect all mounting hardware for corrosion
- Check radiation shield louvres for warping or debris
- Verify console AC adapter output with a multimeter if station is over 5 years old
Every 5 Years
- Replace wind cups and vane proactively, or order the Tune Up Kit
- Inspect tipping bucket funnel for UV degradation and warping
- Compare temperature against a calibrated reference: consider sensor board replacement if readings have drifted
Top 5 Most Replaced Davis Vantage Pro2 Parts
Based on Davis Instruments support documentation and owner reports, these are the five components most commonly ordered as replacements over the life of a VP2 station.
- Wind cups: UV degradation and bearing wear. Most commonly replaced mechanical part. Typically every 3 to 7 years. Repair time: 10 to 15 minutes.
- Wind vane: Bearing seizure after years of outdoor exposure. Usually replaced alongside the wind cups. Repair time: 10 to 15 minutes.
- ISS battery (CR123A): Most frequently purchased part. Replace annually. Repair time: 5 minutes.
- Rain collector funnel: UV warping and debris damage over 5 to 10 years. Included in the Tune Up Kit. Repair time: 10 minutes.
- Temp/humidity sensor board: Electronic degradation after 7 to 12 years. Most technically involved replacement: confirm manufacturing code before ordering. Repair time: 20 to 30 minutes.
Davis Vantage Pro2 Replacement Parts: Quick Reference
The six most commonly ordered Davis VP2 replacement parts, with what each one does and when to buy it.
The single best purchase for any VP2 that is 5 or more years old. Replaces all major mechanical wear parts in one box: wind cups, wind vane, rain collector funnel, rain gauge screen, ISS battery, and desiccant packet. Metric version available as 6997M.
Large replacement wind cups for Vantage Pro2 anemometer. Replace when cups show UV cracking or wind reads zero with no obstruction. Typical lifespan 3 to 7 years.
Find on AmazonReplacement wind vane for VP2 anemometer. Replace when direction is stuck, sluggish, or bearing shows play. Typically replaced with wind cups as a pair.
Find on AmazonCR123A lithium battery for the ISS. Replace annually. Always try a fresh battery before diagnosing any other fault: it is the most common cause of transmission dropout.
Find on Amazon5V DC power adapter for the Vantage Pro2 console. Try this before assuming console failure: a dead adapter is the most common cause of a blank display. Costs $13 to $25.
Find on AmazonPart 7346-166 (Jan 2006 to Jan 2016, code up to AR) or 7346-070 (Jan 2016 and later, code AS+). Confirm your manufacturing code before ordering: wrong board causes 0.5°C offset.
Find on Amazon- Ordering Vantage Vue parts for a VP2: Vue and VP2 wind cups, vanes, and sensor boards are not interchangeable. Always confirm your station model.
- Ignoring the manufacturing code: The temp/humidity sensor board and transmitter board have different part numbers before and after January 2016. Wrong board = temperature reading error.
- Ordering the new sensor board without updating the transmitter, If replacing both the sensor board and transmitter, both must match the same generation (pre-2016 or post-2016).
- Buying a used ISS battery: CR123A batteries degrade over time regardless of use. Always buy new lithium cells from a known brand.
- Replacing electronics before replacing the battery: Dead or weak batteries cause most apparent sensor and transmitter failures. Always replace the CR123A first before diagnosing any electronic fault.
Repair the Part or Replace the Station?
The Davis Vantage Pro2 is almost always worth repairing rather than replacing, because the cost of individual parts is a fraction of a new VP2, and far below the cost of a comparable alternative station. Here is the decision for each major component.
| If this fails | Replace the part | Replace the station | Reason |
|---|---|---|---|
| Wind cups | Yes, $25 to $65 | No | Inexpensive, easy to replace, extends station life significantly |
| Wind vane | Yes, $40 to $50 | No | Low cost, straightforward swap |
| Rain funnel and screen | Yes, $15 to $25 | No | Very low cost, included in Tune Up Kit |
| ISS battery | Yes, $5 to $10 | No | Always replace battery before diagnosing anything else |
| Solar panel | Yes, $20 to $40 | No | Low cost relative to station value |
| Temp/humidity sensor board | Yes, $70 to $80 | No | Still much cheaper than a new station: confirm manufacturing code first |
| ISS transmitter board | Yes, $60 to $90 | No | Cheaper than any comparable replacement station |
| Console AC adapter | Yes, $13 to $25 | No | Always try this before assuming console failure |
| Console display failure | Sometimes, check adapter first | If station over 12 years old | Console replacement is expensive: weigh against new station cost |
| Multiple simultaneous failures | Evaluate total repair cost | If total repair exceeds 60% of new station price | At that point a new station offers better value and newer technology |
Expected Repair Costs by Station Age
As a VP2 ages, more components approach end of life simultaneously. This table gives a realistic budget for typical repair needs at each stage of the station's life.
| Station age | Typical parts needed | Typical repair budget |
|---|---|---|
| 1 to 3 years | ISS battery only | $5 to $10 |
| 3 to 5 years | ISS battery, possible wind cups | $30 to $75 |
| 5 to 7 years | Tune Up Kit (cups, vane, funnel, battery) | $80 to $150 (Tune Up Kit plus incidentals) |
| 7 to 10 years | Tune Up Kit plus possible sensor board | $150 to $230 |
| 10 to 15 years | Multiple parts: cups, vane, sensor board, possibly transmitter | $150 to $300 |
| 15+ years | Full mechanical refresh plus possible electronic components | $200 to $350 |
Repair Difficulty by Part
Most VP2 repairs are straightforward for any owner comfortable with basic outdoor tasks. Electronic board replacements require slightly more care but no specialist tools.
| Part | Difficulty | Tools needed | Time estimate |
|---|---|---|---|
| ISS battery | Very easy | None | 5 minutes |
| Console AC adapter | Very easy | None | 2 minutes |
| Wind cups | Easy | Small screwdriver | 10 to 15 minutes |
| Wind vane | Easy | Small screwdriver | 10 to 15 minutes |
| Rain funnel and screen | Easy | None | 10 minutes |
| Tipping bucket reed switch | Moderate | Small screwdriver, steady hands | 20 to 30 minutes |
| Temp/humidity sensor board | Moderate | Small screwdriver, anti-static precautions | 20 to 30 minutes |
| ISS transmitter board | Moderate to difficult | Small screwdriver, anti-static precautions, console re-pairing | 30 to 60 minutes |
| Solar panel | Moderate | Small screwdriver | 20 minutes |
Should I Buy Used Davis Vantage Pro2 Parts?
Used Davis parts appear regularly on eBay and occasionally in weather observer community forums. Whether to buy used depends entirely on the specific component.
| Part | Buy used? | Reason |
|---|---|---|
| Wind cups | Generally safe | Mechanical part: inspect for UV cracking and bearing play before buying. Avoid if bearing feels rough. |
| Wind vane | Generally safe | Check bearing for smooth rotation. A stiff vane bearing is the most common failure point. |
| ISS battery | Avoid | Batteries degrade over time regardless of use. Always buy new CR123A lithium cells. |
| Console AC adapter | Generally safe | Test output voltage before installing if buying from an unknown source. |
| Temp/humidity sensor board | Caution | Sensor elements degrade with age and exposure. A used board may have drifted accuracy you cannot detect without a reference instrument. Buy new if temperature accuracy matters. |
| ISS transmitter board | Caution | Must match your manufacturing code. Verify the seller can confirm the board's manufacturing date before purchasing. |
| Console | Generally safe | Test thoroughly before buying. Ask the seller to confirm all readings display correctly and the console pairs with an ISS. |
| Complete ISS unit | Caution | Verify manufacturing code compatibility with your console. Test all sensors before finalising the purchase if possible. |
Frequently Asked Questions
Where can I buy Davis Vantage Pro2 replacement parts?
Davis VP2 replacement parts are available from Amazon and directly from Davis Instruments at davisnet.com. For model-specific electronic components and older parts, davisnet.com typically has better stock than Amazon. Scaled Instruments and Scientific Sales are useful US specialist retailers for technical components.
Are Davis Vantage Pro2 and Vantage Vue parts interchangeable?
No. The two stations use different ISS housings, anemometer mounting systems, and in some cases different wireless protocols. Wind cups, vanes, rain funnels, and transmitter boards are all model-specific. Always confirm your station model before ordering any replacement part.
How long does a Davis Vantage Pro2 last?
A well-maintained Davis Vantage Pro2 typically lasts 10 to 15 years, with many units still operating reliably after 15 to 20 years. Davis has maintained parts availability for older VP2 models significantly longer than most consumer weather station brands, making periodic repair practical and affordable.
What does the Davis Vantage Pro2 Tune Up Kit include?
The Davis Tune Up Kit (6997) includes replacement wind cups, a wind vane, a rain collector funnel, a rain gauge screen, an ISS battery, and a desiccant packet. It is the most cost-effective single purchase for replacing the most commonly worn mechanical parts. A metric version (6997M) is available for non-US stations.
How do I find my Davis Vantage Pro2 model number?
For the VP2 ISS, slide up the outer cover of the ISS housing to access the internal SIM board cover: the product label is on this internal cover showing the Part Number (P/N), Serial Number (S/N), and Manufacturing Code. For the Vantage Vue ISS, the label is on the underside of the housing. For consoles, check the back or underside of the unit.
What is the Davis Vantage Pro2 ISS?
The ISS (Integrated Sensor Suite) is the main outdoor sensor unit housing the temperature and humidity sensors, rain gauge, anemometer connection, solar panel, and wireless transmitter. It is the component most likely to need individual part replacement. Available as a complete replacement unit (part 6322 wireless) or individual components can be ordered separately.
Sources
Part numbers and specifications verified against Davis Instruments official support documentation and the Davis Instruments ISS Installation Manual. Manufacturing code compatibility information from Davis Instruments technical documentation via Scaled Instruments. No manufacturer compensation was received. As an Amazon Associate we earn from qualifying purchases.
Lena Thornton
Weather Station Analyst and CWOP Contributor. Lena has researched, reviewed and analysed weather stations and instruments for over a decade. She contributes observation data to the Citizen Weather Observer Program (CWOP) and writes exclusively for the-weather.com.
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