Peugeot 807 central lock and a/c not working

So many possible causes , and probably not related .You could start with checking the fuses of which there are a few , But would really need scanning for fault codes . Peugeot 807 (2007 – 2009) – fuse box diagram Year of production: 2007, 2008, 2009 Instrument panel fuses Peugeot 807 - fuse box - instrument panel Peugeot 807 – fuse box – instrument panel Fuse Ampere rating [A] Functions 1 15 Rear wiper 2 — Not used 3 5 Air bag control unit 4 10 Steering wheel angle sensor, Diagnostic socket, ESP sensor, Manual air conditioning, Clutch switch, Headlamp beam height, Particle emission filter pump, Electrochromatic interior mirror 5 30 Electric mirrors, Electric window motor 6 30 Front electric windows supply, Sunroof row 1 7 5 Courtesy lights, Glove box light, Courtesy mirror lights 8 20 Multifunction display, Anti-theft alarm siren, Audio equipment, Compact disc changer, Audio/telephone, Trailer fuse box, Diesel additive control unit, Tyre under-inflation detection control unit, Sliding doors module control unit 9 30 Lighter 10 15 Steering wheel switching, Trailer fuse box 11 15 Diagnostic socket, Ignition switch, Automatic gearbox 12 15 Driver’s seat memory unit, Passenger’s electric seat, Air bag control unit, Parking assistance control unit, Sliding side door buttons 13 5 Engine fuse box, Trailer fuse box 14 15 Rain sensor, Automatic air conditioning, Instrument panel, Sunroofs, Odometer warning lights unit, Audio-telematics control 15 30 Locking/unlocking/deadlocking of the accesses 16 — Not used 17 40 Heated rear screen Engine compartment fuses Peugeot 807 - fuse box - engine compartment Peugeot 807 – fuse box – engine compartment Fuse Ampere rating [A] Functions 1* 50 Air conditioning blowers 2* 50 Braking system (ABS/ESP) 3* 30 Braking system (ABS/ESP) 4* 60 Built-in Systems Interface supply 5* 70 Built-in Systems Interface supply 6* 30 Additional heating (Diesel) 7* 40 Not used 8* 50 Not used * The maxi-fuses provide additional protection for the electrical systems. Fuse Ampere rating [A] Functions 1 20 Engine control unit, Fuel supply and air supply systems, Fan assembly 2 15 Horn 3 10 Front and rear wash-wipe pump 4 20 Headlamp wash pump 5 15 Fuel supply system 6 10 Power steering, Secondary brake pedal switch, Automatic gearbox control unit. 7 10 Braking system (ABS/ESP) 8 20 Starter control 9 10 Engine control unit 10 30 Fuel supply and air supply systems, Emission control systems 11 40 Front air conditioning 12 30 Windscreen wipers 13 40 Built-in systems interface 14 — Not used Battery compartment fuses Peugeot 807 - fuse box - battery compartment Peugeot 807 – fuse box – battery compartment Fuse Ampere rating [A] Functions 1* 40 Right electric sliding side door 2* 40 Left electric sliding side door 3* — Not used 4* 40 Trailer fuse box 31 5 Main brake switch 32 25 Driver’s seat memorisation 33 25 Passenger’s seat memorisation 34 20 Sunroof row 3 35 20 Sunroof row 2 36 10 Passenger heated seat 37 10 Driver’s heated seat 38 15 Main beam headlamps (xenon bulb) 39 20 12 V accessories socket row 3 40 20 12 V accessories socket row 2 * The maxi-fuses provide additional protection for the electrical systems. WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market