Water pump continually running

Afternoon all,  we are just getting to grips with our Warwick XL and have a couple of questions I would appreciate help with.

1.  Water pump is continually running when switched on. No taps on and water in the tank. Why would this be?

2.  We had the heating on last night but not the hot water however we noticed that the water from the tap was heated.  I'm sure this hasn't happened before.

Any help greatly appreciated.  

Thanks 
Gillian

1. Adjust your pressure switch. Turn it a tiny amount each time in either direction until it stops. It can happen when you change from hook up to 12v. If you can find a compromise position then you won't have to adjust each time you switch.
2 this is normal due to heat transference (the same element/gas jet heats both water and blown air.

Thanks Paulmold.  Sorry if this is a silly question but where would the pressure switch be?

I can't be sure as I don't have submersible pump but I would guess in the same area as your heater. This is what you are looking for....

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glinnen,

The pipe carrying water from the Whale submersible pump in the fresh water tank will go outside the tank directly to the Whale in-line pressure sensitive switch which also includes a non-return valve.  The pressure switch should be accessible to allow the user to make adjustments to it.  Your dealer should have told you where the pressure switch is and how and when to adjust it.  Your information pack should also include detail on it.

Thanks Paulmold and Caraman.  
There was so much take in on handover day that we possibly were told where it was and forgotten.  We have been in touch with the dealer who has helped us over the phone.  Pressure switch located and problem solved

glinnen,

3 months ago during our handover our dealer didn't tell us about the pressure switch or where it was.  I learn't about it through this forum and reading the information pack but the latter didn't say where it was.  I was shown where it was by the dealer when I took it back for warranty work.  You will see from another recent thread that the pressure switch should be accessible.  Mine wasn't.  It was buried under wires in an electrical compartment beneath the EC700 PSU and could only be seen (just) by unscrewing and removing a ventilation grill. When I took it back to the Auto-Sleepers Service Centre at Willersey for further warranty work which included replacing the pressure switch, they fitted the new one in an accessible position in front of the ventilation grill close to the Truma drop valve that is used to drain the water system.  I am of course describing a Nuevo.  Yours might be different.