hi have a valliant combi turbo plus 828 e
it sometimes keeps heating running even when time clock and room sat are off ? and some times water does not heat ??
its not the frost stat as it does it when temp, was over 4c.
thanks martyheat
it sometimes keeps heating running even when time clock and room sat are off ? and some times water does not heat ??
its not the frost stat as it does it when temp, was over 4c.
thanks martyheat
