Hot water 0 degrees

[alexcaravan]

Hi we have a bailey pegasus gt65 6 berth 2015. Never had any problem with the whale hot water system. We got our caravan serviced a while ago and it came back to us with the hot water system showing 0 degrees. The water system always showed a ambient temperature of the water even when not switched. I have tried to disconnect and refind the hub using code 94253.it reconnects and stays at 0 degrees.
i can't find a reset button on boiler and I have disconnected the coffin shapped box and reconnected.
Has anyone had anything similar to this thankyou

 

[RogerL]

Contact whoever did the service and get them to rectify, or explain how you can reset it.

 

[alexcaravan]

Contact whoever did the service and get them to rectify, or explain how you can reset it.

I did he said it wasn't him it must of been unfortunate that it went off at the same time. He looked at it again and was unsure

 

[Hutch]

I don't know our system, but to myself I would suggest the water boiler is empty of water, therefore giving a 0c reading.
Very surprised by your service tech.

 

[IanB1485]

An empty boiler would show the temperature of the inside of the 'tank' whether air or water.
0 Deg C sounds like a short circuit temperature sensor ( software designers often place limits on the temperatures displayed based on the voltage input to the micro. Typically temperature sensors used in various applications of 'normal' temperature ranges say -20 to about 120 Deg C are 10k type A ntc thermistors ( decreasing resistance with increasing temperatures) ( i.e 10k ohms at 25 Deg C) and given a standard dropper resistor and +5V supply give an inverse exponential voltage into the micro. The designer then , knowing the min and max temperatures a system will measure, applies a software lineariser program to convert the voltages to degrees C and any voltage outside the 'expected' range will produce a predefined value - such 'hi temp' or 'low temp' or even 'error' or in this case if the voltage is zero ( short in sensor /cable) '0 Deg C'. Removing the front cover ,which exposes mains voltages so be careful , I think the temp sensor wires are yellow( been awhile since I opened one up) and removing them from connectors will cause the micro to register a high temperature.