Troubleshooting guide

Older Davis stations
This topic covers issues with older Davis stations, specifically original Vantage Pro (what are now referred
to as VP1 stations to distinguish them from the current VP2 models) and the prior generation of Weather
Monitor II and Weather Wizard III stations.
All of these models are likely to be at least ten years old now and so relatively few will be in active operation
still. So here are just a few notes on these older stations, covered in the subheads below:
Compatibility of VP1 and VP2 models
VP1 and VP2 stations use a significantly different data protocol from each other to communicate between
sensor transmitter (ISS) and console and as a result it is not possible to intermix VP1 and VP2 consoles
and sensor transmitters. In other words you cannot use a VP1 console with a VP2 ISS or vice versa. This
is true of both cabled and wireless models (because the cabled models still used a similar data protocol to
the wireless models).
Weatherlink data loggers originally bought for a VP1 station cannot be used with a new VP2 station. This is
not related to VP1/VP2 differences, but to the fact that VP2 stations manufactured since early 2013 require
a logger with an updated specification – see the logger compatibility topic for further details.(VP1 loggers
can be used successfully with pre-2013 VP2 consoles, but this situation typically won’t be relevant to VP1
users looking to upgrade to a new VP2 station). However, new Weatherlink loggers can be used with a VP1
station without problems. NB Data loggers for the older Weather Monitor II and Wizard III stations were of a
completely different design and cannot be used with either VP1 or VP2 stations.
New parts for VP1 and older stations
Brand new mains station components (eg console and ISS units) are simply no longer available from
dealers – in the main, stocks were exhausted several years ago, although it may still be worth asking a
larger and well-established dealer because they may still have the odd component as part of their residual
stock. Occasionally components may still turn up on eBay and similar sites, but will typically be in used
condition and therefore of unknown reliability. Some replacement spare parts and repairs to units may still
be available – see below for details.
Replacement sensors for VP1 and older stations
The one sensor that you’ll find it virtually impossible to source new now is the temperature/humidity sensor
for VP1 and older stations. (VP1 and WMII parts were distinct parts but share the problem of unavailability.)
Prodata Weather Systems Davis Weather Stations KB - Prodata Weather Systems - 1
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